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Assessor's Data
Adams County makes no representations or warranty as to the completeness, accuracy, timeliness, or content of any data made available through this site. Adams County expressly disclaims all warranties, whether express or implied, including any fitness for a particular purpose. Although every reasonable effort has been made to ensure the accuracy of the information provided in the dataset(s), Adams County cannot be responsible for consequences resulting from omissions or errors in the information and graphic representations made herein. It is understood that the information contained in the site is being used at one's own risk. Nothing stated herein is intended to be, or should be interpreted as, a waiver of the Governmental Immunity Act, §§ 24-10-101 to 120, C.R.S.
These downloadable text files are complete records within the Assessor’s database and are designed to be used for reporting needs by the public. Updated bi-annually.
- Assessor's Detailed Data Dump – Admin
- Administrative Data-FileLayout
- Assessor's Detailed Data Dump – Appraisal
- Appraisal Data-FileLayout
Last updated: 05/01/2023 Next update: after 01/01/2024
Previous Year Data Dump:
- Assessor's Detailed Data Dump – Admin
- Assessor's Detailed Data Dump – Appraisal
Downloadable GIS Data
2023 Reappraisal Year
- Qualified Residential Sales with Trended Sale - Excel File
- Qualified Commercial/Industrial Sales with Trended Sale - Excel File
- Qualified Land Sales with Trended Sale - Excel File
- Residential Value Change Map by Neighborhoods
- Residential Comparable Sales Search Interactive Map
2021 Reappraisal Year
- Qualified Sales with Trended Sale - Excel File
- Qualified Sales with Trended Sale - PDF File
- Commercial Qualified Sales with Trended Sale - Excel File
- Land Qualified Sales with Trended Sale - Excel File
- Residential Value Change Map by Neighborhoods
- Verified Sales Map
- How to Access 2021 Re-appraisal Sales Info On-line (guide)
2019 Reappraisal Year
- Qualified Sales with Trended Sale - Excel File
- Qualified Sales with Trended Sale - PDF File
- Commercial Qualified Sales with Trended Sale July 2012 - June 2018 - Excel File
- Land Qualified Sales with Trended Sale July 2013 - June 2018 - Excel File
- Residential Value Change Map by Neighbordhoods
- Verified Sales Map
- How to Access 2019 Re-appraisal Sales Info On-line (guide)
2017 Reappraisal Year
- Qualified Sales with Trended Sale- Excel File
- Qualified Sales with Trended Sale- PDF File
- Residential Time Adjustment By Nbhd-Excel File
- Condominium and Townhouse Time Adjustment-Excel File
- Residential Value Change Map by Neighborhoods
- Verified Sales Map
