The Boulder County Assessor’s office makes the following public data available for download. The datasets are refreshed at 4 a.m. daily. Detailed information about the tables and fields can be found in the Property Data Download Help Manual. The GIS Parcel Boundaries are also available for download.
The Datasets
- Account and Parcel Numbers CSV (46 MB)
- Owners and Addresses CSV (46 MB)
- Buildings CSV (51 MB)
- Land CSV (13 MB)
- Permits CSV (7 MB)
- All Sales CSV (46 MB)
- Tax Areas and Tax Authorities CSV (7 KB)
- Property Values CSV (11 MB)
- Business Personal Property CSV (2 MB)
General Disclaimer
The data which is provided here has been developed solely for internal use only by Boulder County, and the county makes no warranties, representations or guarantees, either expressed or implied, as to the completeness, accuracy or correctness of the data, nor accepts or assumes any liability arising from or for any incorrect, incomplete or misleading data provided. There are no warranties and/or representations, either expressed or implied, of merchantability or fitness of the data for a particular purpose or use.
Boulder County is not responsible for incidental, consequential, or special damages arising from the use of the data provided. The data shall be used and relied upon only at the risk of user.
