Geography 291: Geospatial Analysis with Desktop GIS

Address Point: All the addresses in Delaware County. It is  published every month.

Annexation: Annexations and their boundaries in the county. which is updated and published every month.

Condo: All of the condos in the county.  And is updated every month

Dedicated ROW: This is all the road right-of-way lines.

Farm Lot:  farmlots in both the US Military  Survey Districts within Delaware County.

GPS: Identifies all the GPS monuments which were established in 1991 and 1997. This is updated on an as-needed basis, and was updated in 2021.

Hydrology: This is all major waterways in Delaware County.

MSAG: The boundaries of the 28 political jurisdictions that are within Delaware County.

Map Sheet: map sheets within Delaware County. Last updated 2/28/2025.

Municipality: all the municipalities within the county. Last updated 2/28/2025.

Original Townships: boundaries of the original townships within Delaware County before they were changed based on tax districts.

PLSS: Public land survey system both the US military and Virginia Military Survey Districts within Delaware County.

Parcel: Consists of polygons that represent the cadastral parcel lines in the county. Updated Monthly.

Precinct: Consists of the voting precincts within the county.

Recorded Document: Plots recorded documents from the Delaware County Recorder’s Plat Books, Cabinet/Slides, and Instruments Records.  Updates published monthly.

School District: all the school district lines within the county. Updated monthly.

Street Centerline: The State of Ohio Location Based Response System Street Centerlines of private and public roadways. Updated daily and published monthly.

Subdivision: all subdivisions and condos in the county. Published monthly by the county recorder’s office.

Survey: Survey points is a shapefile of a point coverage representing surveys of land within the county.

Address Point: All the valid addresses in Delaware County. It is updated frequently and published every month.

Annexation: All the annexations and their boundaries in the county. This is updated and published every month.

Condo: All of the condos in the county. This is recorded and updated by the county recorder’s office.

Dedicated ROW: This is all the designated road right-of-way lines. It is updated daily and published every month.

Farm Lot: This is the farmlots in both the US Military and Virginia Military Survey Districts within Delaware County. It is updated every month.

GPS: Identifies all the GPS monuments established in 1991 and 1997. This is updated on an as-needed basis, the last time was 2021.

Hydrology: This is all major waterways in Delaware County. Updated as needed and published monthly.

MSAG: The boundaries of all the 28 political jurisdictions that are within Delaware County. It is updated as needed and published monthly.

Map Sheet: Consists of all map sheets within Delaware County. Last updated 2/28/2025.

Municipality: Consists of all the municipalities within the county. Last updated 2/28/2025.

Original Townships: This is the boundaries of the original townships within Delaware County before they were changed based on tax districts. Last updated 4/17/2020

PLSS: Public land survey system polygons in both the US military and Virginia Military Survey Districts within Delaware County. Updated Monthly.

Parcel: Consists of polygons that represent all the cadastral parcel lines in the county. Updated Monthly.

Precinct: Consists of the voting precincts within the county. Last updated 5/3/2023.

Recorded Document: Plots recorded documents from the Delaware County Recorder’s Plat Books, Cabinet/Slides, and Instruments Records, including vacations, surveys, and annexations. Updates published monthly.

School District: Consists of all the school district lines within the county. Updated monthly.

Street Centerline: The State of Ohio Location Based Response System Street Centerlines of private and public roadways. Updated daily and published monthly.

Subdivision: Consists of all subdivisions and condos in the county. Published monthly by the county recorder’s office.

Survey: Survey points is a shapefile of a point coverage representing surveys of land within the county. Last updated 2/28/25.

Address Point: All the valid addresses in Delaware County. It is updated frequently and published every month.

Annexation: All the annexations and their boundaries in the county. This is updated and published every month.

Condo: All of the condos in the county. This is recorded and updated by the county recorder’s office.

Dedicated ROW: This is all the designated road right-of-way lines. It is updated daily and published every month.

Farm Lot: This is the farmlots in both the US Military and Virginia Military Survey Districts within Delaware County. It is updated every month.

GPS: Identifies all the GPS monuments established in 1991 and 1997. This is updated on an as-needed basis, the last time was 2021.

Hydrology: This is all major waterways in Delaware County. Updated as needed and published monthly.

MSAG: The boundaries of all the 28 political jurisdictions that are within Delaware County. It is updated as needed and published monthly.

Map Sheet: Consists of all map sheets within Delaware County. Last updated 2/28/2025.

Municipality: Consists of all the municipalities within the county. Last updated 2/28/2025.

Original Townships: This is the boundaries of the original townships within Delaware County before they were changed based on tax districts. Last updated 4/17/2020

PLSS: Public land survey system polygons in both the US military and Virginia Military Survey Districts within Delaware County. Updated Monthly.

Parcel: Consists of polygons that represent all the cadastral parcel lines in the county. Updated Monthly.

Precinct: Consists of the voting precincts within the county. Last updated 5/3/2023.

Recorded Document: Plots recorded documents from the Delaware County Recorder’s Plat Books, Cabinet/Slides, and Instruments Records, including vacations, surveys, and annexations. Updates published monthly.

School District: Consists of all the school district lines within the county. Updated monthly.

Street Centerline: The State of Ohio Location Based Response System Street Centerlines of private and public roadways. Updated daily and published monthly.

Subdivision: Consists of all subdivisions and condos in the county. Published monthly by the county recorder’s office.

Survey: Survey points is a shapefile of a point coverage representing surveys of land within the county. Last updated 2/28/25.

Address Point: Represents all certified addresses with daily updates and monthly publications.

Annexation: Covering changes from 1853 to the present and is updated as needed after official recordings and published monthly.

Building Outline: Consists of building outlines for all structures in Delaware County and is updated on an as-needed basis (last updated in 2023).

Condo: Includes all condominium polygons.

Dedicated ROW: Contains all designated road right-of-way lines and polygons and is updated daily and published monthly.

Delaware County Contours: 2018 two foot contours in File Geodatabase format.

Delaware County E911 Data: Utilizes certified address state to reverse geocode a set of coordinates and aid in emergency response. Updates are daily and publications are monthly.

Farm Lot: All farm lots within the US Military and Virginia Military Survey Districts and is updated as needed based on new recorded surveys.

GPS: Consists of GPS monuments that were established in 1991 and 1997 and is updated on an as-needed basis with monthly publications.

Hydrology: All major waterways and is updated on an as-needed basis with monthly publications.

MSAG: Defines the boundaries of the 28 political jurisdictions in Delaware County including townships, cities, and villages. Updates are as needed and published monthly.

Map Sheets: Includes all map sheets.

Municipality: Includes all municipalities.

Original Township: The original boundaries of the townships in Delaware County before tax district changes affected their shapes.

PLSS: Consists of the Public Land Survey System polygons within the US Military and Virginia Military Survey Districts and is updated as needed based on new surveys and published monthly.

Parcel: All parcel boundaries and integrates recorded document changes. Updates are daily with monthly publications.

Precinct: All voting Precincts. Updates are on an as needed basis and are published as needed by the Delaware County Board of Elections.

Recorded Document: Represents recorded documents from the Delaware County Recorder’s Plat Books, Cabinet/Slides, and Instruments Records, including vacations, surveys, and annexations. Updates are weekly and published monthly.

School District: All School Districts within Delaware County. Updates are as-needed and published monthly.

Street Centerline: Depicts the center of public and private roads and is updated daily with monthly publications.

Subdivision: All subdivisions and condos recorded and are updated on a daily basis with monthly publications.

Survey: Represents land surveys stored in the Recorder’s office and Map Department and is updated daily with monthly publications.

Tax District: Consists of all tax districts within Delaware County. Updates are on an as-needed basis and published monthly.

Township: Includes the 19 different townships that make up Delaware County and is updated on an as-needed basis with monthly publications.

Zipcode: All zip codes within Delaware County. Updates are on an as-needed basis through coordination with the United States Postal Service and published monthly.

Address Point: All of the addresses in the county and this data is updated/published monthly.

Annexation: The annexations and boundaries and this data is updated/published monthly.

Condo: All of the condos in the country and is recorded by the county recorder office.

Dedicated ROW: ROW (Right of way) data in Delaware County and is based on Delaware parcel records.

Delaware County E911 Data: Data from the location based response system for Delaware County and is updated daily.

Farm Lot: The farm areas in Delaware County and gets data from US Military.

GPS: All GPS monuments in the county that were established between 1991-1997.

Hydrology: All of the major waterways in Delaware County.

MSAG: MSAG (Master Street Address Guide) consists of the 28 political jurisdictions such as the townships and cities that make up Delaware County.

Map Sheet: All the map sheets in Delaware county.

Municipality: All of the municipalities in Delaware County.

Original Township: The historical township boundaries before modifications made based on tax districts.

PLSS: PLSS (Public Land Survey System) contains land division information based on public land surveys.

Parcel: Cadastral parcel lines that define property boundaries.

Precinct: Voting precinct boundaries in Delaware County.

Recorded Document: Points that represent recorded documents in Delaware County and is updated weekly.

School District: The boundaries of all school districts within Delaware County.

Street Centerline: Road systems, public and private paved roads.

Subdivision: All recorded subdivisions and condos in Delaware County.

Survey: A shapefile of a point that represents land surveys in Delaware County.

Tax District: Dataset defines taxation zones and determines property tax rates based on location.

Township: Current townships in Delaware County.

Zip Code: ZIP code boundaries in Delaware County based on postal and census data.

Address point 

• A spatially accurate representation of all certified addresses in Delaware Ohio 

Annexation 

• Delaware County’s annexations and conforming boundaries from 1853 to present.

Building outline 2023 

• Building outlines for all structures in Delaware county, OH

Condo 

• All condos in Delaware that have been recorded 

Delaware County E911 Data

• The E911 address points layer is a spatially accurate dataset of addresses in Delaware county used for emergency responses and helps 911 agencies by proving location data for buildings. 

GPS

• This dataset maps GPS monuments established in 1991 and 1997, with coordinates in Universal Transverse Mercator (UTM). It is updated as needed and published monthly.

MSAG

• The MSAG polygon dataset maps the boundaries of the 28 political jurisdictions in Delaware County, Ohio, including townships, cities, and villages. It is used for location-based services and is updated as needed, with monthly publications.

Municipality

• This data set has all the municipalities in Delware County 

Parcel 

• This dataset contains polygons representing all cadastral parcel lines in Delaware County, Ohio, maintained by the Auditor’s GIS Office. It is updated daily based on recorded documents and published monthly.

Precinct 

• This dataset maps voting precincts in Delaware County, Ohio, maintained by the Auditor’s GIS Office under the Board of Elections’ direction. It is updated and published as needed.

Recorded Document 

• This dataset contains points representing recorded documents in Delaware County, Ohio, such as surveys, annexations, and subdivisions not covered by active plats. It is updated weekly and published monthly.

School district 

• This dataset maps all school districts in Delaware County, Ohio, based on the Auditor’s parcel records.

Street centerline 

• The LBRS Street Centerlines dataset maps the center of public and private roads in Delaware County, Ohio, with address ranges based on field observations and permits. It supports mapping, emergency response, and roadway inventory, with daily updates and monthly publications

Subdivision 

• This dataset includes all recorded subdivisions and condos in Delaware County, Ohio.

Survey

• The Survey Points dataset maps land surveys in Delaware County, Ohio, based on documents from the Recorder’s Office and Map Department. It is updated daily and published monthly.

Tax district 

• This dataset maps all tax districts in Delaware County, Ohio, as defined by the Auditor’s Real Estate Office

Data 1: PLSS – This is a feature layer, PLSS meaning Public Land Survey System. It was created to facilitate the PLSS and boundaries for the US and Virginia Military Survey Districts of Delaware County It is updated on an as-needed basis

Data 2: Township – Feature Layer: This shows all the townships that are in Delaware County.

Data 3: 2024 Aerial Imagery: Spring 2024, planes flying over Delaware county in spring

Data 4: Delaware County E991 Data – Feature Service: This map shows the 991 emergency response, accident reporting, geocoding, and disaster management in Delaware County. It helps 911 agencies comply with phase II 911 requirements

Data 5: Building outline 2021 – Feature Layer: This shows the outlines for all the structures in Delaware County in 2021, when it was last updated.

Data 6: Original Township – Feature Layer: This is a map of what the original township boundaries were. This was before tax district changes affected township shapes.

Data 7: Zip Code – Feature Layer: All the zip codes in Delaware County are in here. Tax-exempt parcels were added by whichever zip codes they were most related to.

Data 8: School District – Feature Layer: This contains all the school districts in Delaware County. It was created by the Delaware County Auditor’s parcel records of the school districts.

Data 9: Building Outline 2023: Same as Data 5 but for year 2023.

Data 10: Recorded Document: A map that shows all the recorded documents in the Delaware County Recorder’s Plat Books, Cabinet/Slides, and Instruments Records.  Some of these documents include ones containing vacations, subdivisions, centerline surveys, surveys, annexations, and miscellaneous. It is updated weekly and posted monthly.

Data 11: Dedicated ROW: Contains all the lines that are designated as right-of-way in Delaware County. They are stores within Delaware County Recorder’s office. There are currently 1256 records.

Data 12: Subdivision: This contains all subdivisions and condos in Delaware County. Currently 5917 records.

Data 13: Address Point: Represents all the certified addresses in Delaware County. There are currently 113797 records.

Data 14: Map Sheet: Shows all the map sheets in the county.

Data 15: Farm Lot: This shows all the farmlots that are in both the US and Virginia Military Survey Districts of Delaware County. 2077 records

Data 16: Annexation: This shows all the annexations and conforming boundaries since 1853. 421 records

Data 17: Survey: This represents the surveys of land in Delaware County. Old survey volumes 1-11 are not included. 17848 records

Data 18: Tax District: This shows all of the tax districts in Delaware County. 61 records

Data 19: Hydrology: This shows all the major waterways in Delaware County. It was enhanced in 2018 with LIDAR-based Data. 24 records

Data 20: GPS: This shows all the GPS monuments in Delaware County. 351 records

Here is a screenshot of center streetline, hydrology, and parcel:

Address Point: It is a representation of all certified addresses in Delaware county, it is maintained by the Delaware auditor’s GIS office. It is for 911 emergency response 

Annexation: Boundaries of Delaware from 1853 to present, it is published monthly 

Building Outline 2023: This dataset has the outlines of buildings in Delaware, it is updated on a as-needed basis

Condo: this records all the condominiums in Delaware

Delaware County E911 Data: This dataset is specifically for locating houses during 911 calls, this has a layer of reverse geocode to determine closest valid address 

GPS: this dataset has marked all the GPS checkpoint marks, that provide coordinates for GPS systems

MSAG: Master street address guide, it has 28 political jurisdictions, like towns, cities and villages. It locates its boundaries within Delaware. 

Municipality: This dataset has all municipalities of Delaware 

Parcel: This dataset has all the cadastral parcels 

Precinct: This dataset has voting precincts of Delaware, it is maintained by under the direction of Delaware County Board of Elections 

Recorded Document: data points represent recorded documents in Delaware. It was created to facilitate the process of locating miscellaneous documents  

School District: It consists of all school districts in Delaware 

Street Center-line: This dataset shows accurate representation of the road systems, public and private paved roads. 

Subdivision: Contains subdivisions and condos 

Survey: This dataset represents land surveys 

Tax District: This data has tax districts in Delaware county, it is defined by the Delaware real estate office 

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Address Point

A comprehensive and spatially accurate dataset of all certified addresses within Delaware County, Ohio. This dataset is updated daily and made available on a monthly basis.

Annexation

Tracks changes to municipal boundaries in Delaware County, including annexations and territorial adjustments since 1853. Updates occur as needed when changes happen, with monthly publications.

Building Outline

Outlines the physical structures across Delaware County.

2021 Dataset: Last updated in 2021, with updates occurring as needed.

2023 Dataset: Last updated in 2023, with updates occurring as needed.

Condo

A dataset containing all condominium properties in Delaware County, represented as polygons.

Dedicated Right-of-Way (ROW)

Contains all designated road right-of-way areas in Delaware County. This dataset aligns with parcel data updates and is updated as needed, with monthly publications.

Delaware County Contours

A topographic dataset displaying two-foot elevation contours across the county, based on 2018 survey data.

Delaware County E911 Data

Utilizes the Address Point dataset to determine the closest emergency response location for any given address. This dataset is updated daily and published monthly.

Farm Lot

Identifies the locations of farm lots throughout Delaware County. Updates occur as needed when new surveys are conducted.

GPS Monuments

A record of established GPS control points (monuments) throughout Delaware County, used for geospatial referencing.

• Last updated in 2021, with updates occurring as needed.

Hydrology

Maps major waterways, including rivers, lakes, and streams. The dataset was last enhanced in 2018 and is updated as needed.

Master Street Address Guide (MSAG)

Maintains a record of all official street addresses in Delaware County, along with their respective jurisdictions (cities, townships, and villages). Updates occur as needed.

Map Sheet

Contains all official map sheets for Delaware County.

Municipality

Defines and maintains the boundaries of all municipalities within the county.

Original Township Boundaries

Displays the historical township boundaries before modifications due to tax districts. This dataset remains unchanged over time.

Public Land Survey System (PLSS)

Contains land division information based on public land surveys, including those conducted by the U.S. Military and Virginia Military surveys. Updated as needed, with the latest update on February 28, 2025.

Parcel Data

Includes all land parcel boundaries within Delaware County. Maintained by the Delaware County Auditor’s GIS Office, updated daily, and published monthly.

Voting Precincts

Outlines all voting precincts within Delaware County, maintained by the Board of Elections and updated as needed.

Recorded Documents

A dataset containing points linked to recorded property-related documents within Delaware County. Updated weekly and published monthly.

School Districts

Defines the geographic boundaries of all school districts in Delaware County. Updated as needed.

Street Centerline

Represents the centerline of all public and private roads in Delaware County. Used for transportation planning, emergency response, and accident reporting. Updated daily.

Subdivision

Records all subdivision developments and condominium communities. Updated daily and published monthly.

Survey Data

A dataset showing locations of land surveys conducted throughout Delaware County. Maintained by the Map Department, updated daily, and published monthly.

Tax Districts

Defines tax district boundaries in Delaware County, maintained by the Real Estate Office. Updated as needed.

Township Boundaries

Shows the defined borders of the 19 townships in Delaware County. Updated as needed and published monthly.

Zip Code Data

Represents the ZIP code boundaries within Delaware County, refined using postal and census data.

Address Point: A dataset of all certified addresses in Delaware County, updated daily and published monthly.

Annexation: A record of annexations and boundary changes within Delaware County since 1853, reflecting territorial adjustments. Updated monthly.

Building Outline: A collection of structure outlines throughout Delaware County, with the latest update in 2023.

Condo: A dataset of all condominium-style housing units within Delaware County.

Dedicated Right-of-Way (ROW): Identifies all designated road right-of-way areas within Delaware County.

Delaware County Contours: Displays two-foot elevation contours based on 2018 topographic data, providing a detailed terrain map.

Delaware County E911 Data: Uses address point data for reverse geocoding to determine the closest emergency services location. Updated daily and published monthly to enhance 911 response accuracy.

Farm Lot: A dataset marking farm lot locations within Delaware County.

GPS Monuments: Includes all established GPS monuments in Delaware County, last updated in 2021.

Hydrology: Highlights major waterways, including lakes and rivers, within Delaware County. Updated monthly using LiDAR data.

MSAG (Master Street Address Guide): Contains all street addresses within Delaware County along with their respective jurisdictions (townships, cities, and villages). Updated as necessary.

Map Sheet: A dataset featuring all official map sheets for Delaware County.

Municipality: Defines the boundaries of all municipalities within Delaware County.

Original Township: Displays historical township boundaries prior to modifications caused by tax district changes. This dataset remains static and is not actively updated.

Public Land Survey System (PLSS): Represents the public land survey system used to define land divisions in Delaware County. Updated as needed.

Parcel Data: A dataset containing all parcel lines within Delaware County, maintained by the Delaware County Auditor’s GIS Office. Updated daily and published monthly.

Voting Precincts: Shows the boundaries of all voting precincts within Delaware County, managed by the Board of Elections.

Recorded Documents: A collection of property-related recorded documents for Delaware County.

School Districts: Outlines the boundaries of all school districts within Delaware County.

Street Centerline: Represents the central axis of all public and private roads in Delaware County, used primarily for transportation planning, accident reporting, and emergency response. Updated daily.

Subdivision: Tracks all subdivision and condominium developments in Delaware County. Updated monthly.

Survey Data: A collection of survey results across Delaware County, maintained by the Map Department. Updated daily and published monthly.

Tax Districts: Defines the boundaries of tax districts within Delaware County, managed by the Real Estate Office. Updated as necessary.

Township Boundaries: Depicts the 19 current townships in Delaware County. Updated as needed and published monthly.

Zip Code Data: A dataset of all ZIP codes within Delaware County.