Boulder County Property Assessor

Search for Boulder County CO property assessment information. Property Assessments include property tax assessments, property valuations, property tax liens, defaults on property taxes, and property assessment appeals.


Boulder County Assessors determine the value of properties and parcels so that the jurisdiction can levy Colorado property taxes. The Assessor's Office maintains current data on every parcel in the district, including records on Boulder County property tax assessments, maps of property lines, and inventories of parcels and structures, as well as the value of all the property in the jurisdiction. Boulder County Tax Assessors may also keep records on reassessments for construction or improvements and other on-site inspections. Boulder County Assessment Offices provide online access to their property assessment records.

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


Boulder County Clerks file documents and preserve a range of municipal records in order to maintain an archive for their Colorado municipality. These Boulder County tax assessment records are open to the public. The Clerk's Office has a number of records on property assessments, including real estate excise taxes, tax liens on properties, and the Boulder County property tax assessment formulas. They also keep records on property transactions, deeds, and titles. Boulder County Clerks provide online access to their public property tax records, including documents related to property assessments.

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

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

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


Boulder County Recorders of Deeds collect public records, primarily documents related to property, and make them available to the Colorado public. The Office of the Recorder of Deeds maintains records on Boulder County property tax assessments, including property and parcel surveys, property tax liens, and property valuations. They also record land transactions within the jurisdiction, including deeds, mortgages, and easements. The Boulder County Recorder provides online databases for public records access of property assessments.

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


Boulder County Town Halls and City Halls are the chief administrative office that runs a town or city in Colorado. The Town or City Hall maintains records related to the locality, including property assessment records. These Boulder County public assessment records include property value assessments, records of paid and unpaid property taxes, and property tax liens. Town and City Halls also maintain records on land transactions, property sales and transfers, and municipal and zoning boundaries. Property assessment records are available as public records, and many Town and City Halls provide online access to these files.

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 Treasurers and Tax Collectors are responsible for the collection of property tax revenue in Colorado. The Office of the Treasurer and Tax Collector maintains current data on every Boulder County parcel , as well as a number of other property tax assessment records. These records include property assessments, defaults on property taxes, lists of sold parcels, and property valuations. The Treasurer and Tax Collector may also maintain information on Boulder County property auctions and a property's prior liens or foreclosures. Boulder County Treasurers and Tax Collectors provide online databases to access property assessment records.

Boulder County (Co) Treasurer's Office Boulder CO 1325 Pearl Street 80302 303-441-3520