Boulder County GIS Portal

Search for Boulder County CO 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.


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

Boulder County Assessor's Office Boulder CO PO Box 471 80306 303-441-3530


Boulder 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 Boulder County GIS maps. The GIS maps at a Boulder 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 Boulder County Colorado. 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 Boulder County Town and City Hall website.

Boulder City Hall Boulder CO 118 Main Street 80302 303-449-1806

Jamestown Town Hall Jamestown CO 118 MAIN St 80455 303-449-1806

Lafayette City Hall Lafayette CO 415 North 111th Street 80026 303-665-5588

Louisville City Hall Louisville CO 749 Main St 80027 303-666-6565

Lyons Town Hall Lyons CO 432 5th Avenue 80540 303-823-6622

Nederland Town Hall Nederland CO 45 West 1st Street 80466 303-258-3266

Superior Town Hall Superior CO 124 East Coal Creek Drive 80027 303-499-3675


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

Boulder County Clerk Lafayette CO 1376 Miners Drive 80026 303-413-7700

Boulder County Clerk Boulder CO 1750 33rd Street 80301 303-413-7770

Colorado State Clerk Boulder CO 1777 6th Street 80302 303-441-3750


Boulder 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 Boulder 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 Boulder County Colorado. The Recorder of Deeds may also have historic GIS maps. These maps are often available on the Boulder County Recorder of Deeds website.

Boulder County Recorder of Deeds Boulder CO 1750 33rd Street 80301 303-413-7770