Adams County Colorado Property Search
To search Adams County property records, use the tool below by owner name, parcel number (PIN), or street address. Adams County maintains over 120,000 parcels covering 157,289 residential and 6,227 commercial properties. Records are maintained by the Adams County Assessor’s Office in Brighton, and the effective property tax rate for 2025 is about 0.84% of a home’s value.
Property Search
Partial info works — a last name or street name is enough.
Note: Results come from Colorado’s public GIS database and may not reflect the most recent changes. For verified records, contact the county assessor directly.
How Adams County Property Assessment Works
The Adams County Assessor reviews property values every year to keep assessments in line with the market. Colorado law requires a full countywide reappraisal in odd-numbered years, so the value on your 2025 notice also sets your 2026 taxes. Each of the county’s 120,000+ parcels has its own parcel number, which is the fastest and most accurate way to pull up a single property’s ownership, land size, building details, and tax record.
Assessor’s Office — Contact & Key Dates
If you can’t find a record online, or you need certified documents, the Assessor’s Office is your direct source.
Brighton, CO 80601
May 1 – June 8 — Window to appeal your value to the Assessor. File online through the Adams County NOV portal (assessor.adcogov.org), by mail, or in person at the Government Center in Brighton.
September 15 — Deadline to petition the County Board of Equalization if the Assessor denies your appeal. CBOE hearings are held between September 1 and November 1.
Note: only the property owner (or a notarized authorized agent) can file an appeal. Under CORA, agencies must respond to public records requests within three working days.
4 Ways to Look Up an Adams County Property Record
Enter a full or partial name to see ownership history and assessed values.
The PIN is on your tax statement or deed (example format: 018123400567). Fastest and most accurate method.
Enter the street address to pull current owner, parcel data, and assessed value.
Filter to a city like Thornton, Commerce City, or Northglenn to browse all parcels in that area.
Property Tax by City
| City / Town | Population | Parcels (approx.) | Effective Rate | Median Residential Tax |
|---|---|---|---|---|
| Thornton | 146,718 | 51,846 | 0.65% | ~$3,170 |
| Westminster (part) | 70,736 | 29,978 | 0.61% | ~$2,800 |
| Commerce City | 71,438 | 21,135 | 0.95% | ~$3,500 |
| Aurora (part) | 53,907 | 16,897 | 0.67% | ~$3,110 |
| Brighton (part) | 43,388 | 14,683 | 0.73% | ~$3,545 |
| Northglenn | 38,096 | 14,600 | 0.75% | ~$2,900 |
| Federal Heights | 14,407 | 5,577 | — | ~$2,500 |
| Bennett (part) | 3,587 | 1,061 | 0.53% | ~$2,100 |
Figures are estimates for research; confirm exact amounts with the Adams County Treasurer before making financial decisions.
Exemptions & Tax Relief
Homeowners 65 or older who have owned and lived in their home for 10 consecutive years can have 50% of the first $200,000 of the home’s value exempted. Apply with the Assessor by July 1; once approved it renews automatically. Full eligibility: senior property tax exemption Colorado.
Veterans with a 100% permanent service-connected disability get the same 50% exemption on the first $200,000, regardless of age. The application deadline is also July 1. Surviving spouses may keep it. Details: Adams County land use and zoning rules.
Lower-income and senior owners may defer taxes as a loan against the property, repaid when the home is sold.
Nearby Counties
If a property sits near a county line, or you’re comparing areas, these neighbors keep their own records. Or browse our Colorado public property records for a statewide overview, or visit explore Adams County property data for all tools.