Benton County GIS Portal (Washington)

Benton County Assessor Offices are charged with determining the value of taxable property in their county or local area in order to calculate Benton County property taxes. In addition to property values, Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) maps. These Benton County GIS maps can show public property, parks, property divisions, and roads, as well as property assessments and property taxes in Benton County, Washington. 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 Benton County Assessor Office website.

Benton County Assessor's Office Prosser WA 620 Market Street 99350 509-786-2046


Benton 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 Benton County GIS maps. The GIS maps at a Benton 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 Benton County, Washington. 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 Benton County Town and City Hall website.

Benton City City Hall Benton WA 708 9th St 99320 509-588-3322

Kennewick City Hall Kennewick WA 210 West 6th Avenue 99336 509-585-4445

Richland City Hall Richland WA 505 Swift Boulevard 99352 509-942-7390

West Richland City Hall West Richland WA 3801 West Van Giesen Street 99353 509-967-3431

Benton 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 Benton County property maps that show boundaries, public property, property divisions, and in some cases, population information in Benton County, Washington. They may also include property value assessments and property tax rates. Benton 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.

Benton County Clerk Kennewick WA 7122 West Okanogan Place 99336 509-735-8388

Kennewick City Clerk Kennewick WA 210 West 6th Avenue 99336 509-585-4273


Benton 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 Benton 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 Benton County, Washington. The Recorder of Deeds may also have historic GIS maps. These maps are often available on the Benton County Recorder of Deeds website.

Benton County Recorder of Deeds Prosser WA PO Box 470 99350 509-786-5616