Alamosa County Colorado Property Search
To search Alamosa County property records, use the tool below by owner name, parcel number, or street address. Alamosa County sits in Colorado’s San Luis Valley and is a small, largely rural and agricultural county with about 5,978 residential and 254 commercial properties. Its effective 2025 property tax rate is roughly 0.32% — one of the lowest in the state. Records are maintained by the Alamosa County Assessor’s Office in Alamosa.
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 Property Is Assessed in Alamosa County
The Alamosa County Assessor values residential, commercial, and agricultural property, with a full reappraisal in odd-numbered years. One thing sets a valley county like Alamosa apart: agricultural land isn’t valued at market price. Under the Colorado Constitution, farm and ranch land is valued on its earning capacity — a ten-year average of commodity prices and typical costs — so a large field here can carry a very different value than a similar-sized residential lot. That matters in Alamosa, where farmland and ranch parcels make up a big share of the county. For a full breakdown, see our Colorado property tax overview.
Each parcel has its own parcel number, which is the fastest, 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 need certified documents, contact the Assessor directly.
Alamosa, CO 81101
June 1 — Real property appeal deadline (postmarked or in person). Note: this is earlier than the June 8 date some larger Colorado counties use — don’t assume the metro date applies here.
You can appeal in writing, by email, by phone, or in person. If the Assessor denies your appeal, you can petition the County Board of Equalization.
Because Alamosa is a smaller office, calling ahead at (719) 589-6365 is often the quickest way to get help or schedule a visit.
4 Ways to Look Up an Alamosa County Property Record
Enter a full or partial name to see ownership and assessed values.
The most precise method — the PIN is on your tax statement or deed.
Enter the street address to pull current owner, parcel data, and assessed value.
Filter to Alamosa, Hooper, or Mosca to browse all parcels in that area.
Property Tax by Town
| Town / Area | Population (2024) | Area (sq. mi) | Median Annual Tax |
|---|---|---|---|
| Alamosa (city) | 9,906 | 7.7 | ~$715 |
| Alamosa East (CDP) | 1,404 | 3.6 | ~$650 |
| Hooper | 82 | 0.25 | ~$126 |
| Unincorporated county | ~5,300 | 711.1 | ~$694 |
Figures are estimates for research; confirm exact amounts with the Alamosa 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 market value exempted. The application deadline is July 15, and once approved it stays in effect (you must notify the Assessor within 60 days if ownership or occupancy changes). The Alamosa County Assessor’s office has approved over 800 seniors for this exemption. For more details on how to search and verify your property records, see our Alamosa County property lookup guide.
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 July 1. Surviving spouses of qualifying seniors, disabled veterans, and Gold Star veterans may also qualify. For land classification details, see agricultural land zoning in Colorado.
Nearby Counties
Alamosa sits in the San Luis Valley, surrounded by other rural valley counties that keep their own records. Browse Alamosa County public property records statewide, or search all Colorado county property data from one place: