Jefferson County GIS Portal (Missouri)

Search for Jefferson County, MO GIS maps. A GIS map search can provide information like county maps, town maps, city maps, local maps, property maps, parcel maps, plat maps, public property, property tax assessments, flood zones, zoning boundaries, geographic information, historical maps, and property tax information.


Jefferson County Assessor Offices are charged with determining the value of taxable property in their county or local area in order to calculate Jefferson County property taxes. In addition to property values, Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) maps. These Jefferson County GIS maps can show public property, parks, property divisions, and roads, as well as property assessments and property taxes in Jefferson County, Missouri. These maps can also include place names, bodies of water, flood zones, property zones, and other geographic information. Some Assessors may keep historic GIS maps that include historic property tax assessments. These maps may be available on the Jefferson County Assessor Office website.

Jefferson County Assessor Hillsboro MO 729 Maple Street 63050 636-797-5466


Jefferson County Clerk Offices maintain public records for a county or local government, which includes GIS maps. These maps provide detailed information on the area, including Jefferson County property maps that show boundaries, public property, property divisions, and in some cases, population information in Jefferson County, Missouri. They may also include property value assessments and property tax rates. Jefferson County GIS maps can show place names, bodies of water, zoning information, flood zones, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations, and these maps are often available online through the Clerk Office website.

Arnold City Clerk Arnold MO 2101 Jeffco Boulevard 63010 636-296-4308

Crystal City Clerk Crystal MO 130 Mississippi Avenue 63019 636-937-4604

De Soto City Clerk De Soto MO 17 Boyd Street 63020 636-586-3326

Jefferson County Clerk Hillsboro MO 729 Maple Street 63050 636-797-5483


Jefferson County Town and City Halls provide municipal services for their town or city, including preserving vital records and maintaining records on their jurisdiction such as Jefferson County GIS maps. The GIS maps at a Jefferson County Town or City Hall can include property boundaries, public property, unclaimed parcels, and roads, as well as appraisal values for properties and property tax assessments in Jefferson County, Missouri. These GIS maps may also show population information, place names, zoning boundaries, bodies of water, flood zones, and other geographic information. Some Town and City Halls also have historical maps of their area. These maps are often available to the public on the Jefferson County Town and City Hall website.

Arnold City Hall Arnold MO 2101 Jeffco Boulevard 63010 636-296-2100

Crystal City City Hall Crystal MO 130 Mississippi Avenue 63019 636-937-4614

Festus City Hall Festus MO 711 West Main Street 63028 636-937-4694

Herculaneum City Hall Herculaneum MO 1 Parkwood Court 63048 636-475-4447

Kimmswick City Hall Imperial MO 6041 3rd Street 63052 636-464-7407

Pevely City Hall Pevely MO 401 Main Street 63070 636-475-4452


Jefferson County Recorders of Deeds keep real estate records to ensure the accuracy of property and land records. In addition to deeds, Recorders of Deeds also have detailed county and local maps, including Jefferson County GIS maps that show property lines, building information, public property, unclaimed parcels, as well as property value assessments and property tax information. These GIS maps may also include place names, zoning boundaries, bodies of water, flood zones, and other geographic information in Jefferson County, Missouri. The Recorder of Deeds may also have historic GIS maps. These maps are often available on the Jefferson County Recorder of Deeds website.

Jefferson County Recorder-Deed Hillsboro MO 729 Maple Street 63050 636-797-5414