Seniority, absolute versus conditional water, and decreed uses for all 1,149 water rights on record in Costilla County, taken from the state's own records. Priority dates run from 1850-12-31 to 2000-05-04.
CFS on record: 3,750.3 absolute · 3.7 conditional. Flow (CFS) and volume (AF) are never added together.
Worth knowing: 12 rights in Costilla County carry a conditional portion, water that is decreed but not yet perfected. Absolute and conditional are not the same asset.
In a dry year the oldest rights are served first. This is how Costilla County's rights are distributed.
| Era | Rights | Share | |
|---|---|---|---|
| pre-1900 | 252 | 21.9% | |
| 1900-1949 | 421 | 36.6% | |
| 1950-1969 | 388 | 33.8% | |
| 1970-1999 | 84 | 7.3% | |
| 2000+ | 4 | 0.3% |
| Decreed use | Rights |
|---|---|
| Irrigation | 672 |
| Domestic | 454 |
| Stock | 238 |
| Augmentation | 58 |
| Commercial | 46 |
| Other | 44 |
Ranked by the state's own priority administration number, the figure DWR uses to order rights by seniority.
| Priority | Structure | Source | Amount | Uses | Verify |
|---|---|---|---|---|---|
| 1850-12-31 | W3002 WELL NO 02 | GROUNDWATER: TRINCHERA CREEK | 0.033 CFS | Domestic, Stock | state record |
| 1852-04-10 | SALAZAR D | RITO SECO | 2.0 CFS | Storage, Irrigation, Recreation, Fishery, Stock, Augmentation, Other, Wildlife | state record |
| 1852-04-10 | SAN LUIS PEOPLES D | CULEBRA CREEK | 21.0 CFS | Irrigation | state record |
| 1852-04-30 | SAN PEDRO D | CULEBRA CREEK | 19.5 CFS | Irrigation | state record |
| 1853-08-31 | MONTEZ D | RITO SECO | 1.0 CFS | Irrigation | state record |
| 1854-03-31 | VALLEJOS D | VALLEJOS CREEK | 17.0 CFS | Irrigation | state record |
| 1855-04-30 | ACEQUIACITA D | COSTILLA CREEK | 1.0 CFS | Irrigation | state record |
| 1856-04-30 | SAN ACACIO D | CULEBRA CREEK | 46.0 CFS | Irrigation | state record |
| 1857-04-30 | CHALIFU D | COSTILLA CREEK | 10.0 CFS | Irrigation | state record |
| 1857-11-30 | CERRO D | CULEBRA CREEK | 40.0 CFS | Irrigation | state record |
This page is the summary. The full file for Costilla County covers every one of the 1,149 rights, with its priority date, seniority number, absolute and conditional amounts, decreed uses and a link to each official record, as a spreadsheet.
Buying, lending on, or listing irrigated ground here? Ask for the county file, or for a single property's water summary. The first one is on me.
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Records last updated 10 September 2026.