Geographic Information Systems

Geographic Information Systems

GIS is a Wapello County Department that administers and maintains the county geodatabases, including parcel (property) data (derived from surveys, data from Assessor, Auditor and Recorder’s offices, & CAD files from the Secondary Roads Department). This data is then utilized to create the Wapello County online map, and is also used for reporting, spatial analysis, calculating & deriving new statistics.


What is GIS?

GIS stands for Geographic Information Systems. GIS utilizes surveys, spreadsheets, shapefiles (feature classes), GPS receivers and imagery to give a visual representation of the data. GIS is revolutionizing the way we see the world around us. We use GPS receivers in our cars, geocaching (treasure hunt), planning a trip, sharing pictures or your current location on social media.



Property Information

If you are looking for a plat map of a property, you may visit our online map at: **PLEASE NOTE: The lines and data within the map are for taxation purposes and cannot be used in place of a survey for physical property line locations. If you need to know the exact location of property lines, they should be verified by a third party, non-governmental source. Wapello County Geographic Information Systems does not conduct surveys**.

You may also visit the Assessor’s website at:

If you have questions or are having problems accessing the online maps you may stop by the GIS or Assessor’s offices located on the first floor or the Wapello County Courthouse in Ottumwa, or call the office during working hours.


Data Resources

Iowa Department of Transportation (IDOT)
Iowa Geodata
Iowa Geospatial Data Clearinghouse
US Census
US Department of Agriculture (USDA)
US Geological Survey (USGS)


The GIS office is also open to the public for inquires on specific projects, properties, and for map printing purposes.