County GIS map in Washington County
The interactive map the county publishes. Parcels, aerial photos, roads, and lakes in one place.
Washington County GIS map
Interactive GIS and parcel map for Washington County. Search a property to see its parcel lines and the other map layers.
GIS data downloads
- Illinois GIS data downloadsDownload Illinois's statewide GIS data, such as roads, boundaries, imagery and elevation. It has no statewide property lines.
Statewide What is this?
Aerial imagery
- Sanborn Fire Insurance MapsDigitized Sanborn fire insurance maps showing building footprints, materials and uses for American towns and cities, widely used in property history and enviro…
National What is this?
- USDA NAIP Imagery HubFind and download USDA's leaf-on aerial photography for the contiguous United States. Check coverage and acquisition dates for the area you need.
National What is this?
- USGS National Map ViewerNational base map with elevation, hydrography, imagery, boundaries and PLSS layers.
National What is this?
Who to ask
- Washington County GIS and mappingWashington County Supervisor of Assessments keeps the maps and GIS for Washington County.Sharon Harre Mewes, Supervisor of Assessments
- Phone
- (618) 327-4800 ext. 166
- sharon.mewes@washingtonco.illinois.gov
- Website
- Visit website
Guide: A parcel map is not a survey
About county gis map
County GIS viewers show mapped parcels, aerial photos, roads, water, and other local layers. Start with the county map or parcel viewer for the place you are researching.