Buying Land in Presidio County, Texas

Water in a genuinely dry county: a district built to watch a scarce resource

Presidio County voters created the Presidio County Underground Water Conservation District (PCUWCD) in 1999 specifically to protect the county's groundwater, and the district has since built out a network of monitoring wells to track aquifer status -- concentrated around the cities of Marfa and Presidio, but also placed in Big Bend Ranch State Park, the Chinati Mountains, and south of Valentine. Roughly half of the district's monitoring wells sit in the Igneous Aquifer and the other half in the West Texas Bolsons, and the district sets Desired Future Conditions (DFCs) -- quantified benchmarks for how much groundwater the county's natural resources, population, and economy actually need to remain sustainable. That level of active monitoring matters more here than in most counties in this batch: Presidio County's ranching land receives well under 10 inches of rainfall in an average year, meaning a well's long-term reliability is a genuinely thinner margin than in wetter parts of the state. Confirm current well-permitting rules and the district's latest DFC and monitoring data directly with PCUWCD before relying on a specific well's projected yield.

A border county subject to its own subdivision law

Presidio County runs 135 miles along the Rio Grande and the Mexican border, which puts the entire county inside the Texas Local Government Code's defined "border area" (any county with any part within 50 miles of the border). That triggers a genuinely distinct legal regime under Chapter 232, Subchapter B of the Local Government Code -- the state's colonias-prevention subdivision law -- that does not apply to the interior Texas counties in this research batch. In practical terms, a subdivider in the border area generally must either install water, sewer, road, and drainage infrastructure before getting final plat approval, or post a financial guarantee ("build it or bond it") covering that cost by a promised completion date stated on the plat; separately, selling a rural lot in the border area that lacks water and sewer service (or that guarantee) is generally prohibited except to someone who will live on the lot. See our standalone page on subdividing land in Presidio County for the fuller mechanics of this law and what it means for a specific transaction.

This law exists because of real, documented history: Presidio County has several named colonias -- rural, largely Hispanic border settlements that historically lacked basic infrastructure -- including Redford, Ruidosa, Candelaria, and Shafter. As recently as 2024, county officials formed a new Presidio County Utility System Board specifically to address ongoing water-access problems in these communities; Ruidosa, for instance, has been documented with only a handful of active water meters. If you're evaluating land in or near one of these communities specifically, water and sewer availability is worth verifying directly and early, rather than assumed.

Ranching, aridity, and what that means for ag valuation

Presidio County's economy has long centered on cattle ranching and farming along the Rio Grande -- as of a 1982 count, more than 83% of the county's land was in farms and ranches, with livestock generating roughly two-thirds of agricultural income even as average precipitation across the county stays under 10 inches a year. Given how dominant ranching remains as a land use here, a meaningful share of Presidio County acreage likely carries an agricultural or wildlife-management valuation with the Presidio County Appraisal District rather than full market-value taxation. That valuation generally requires the land to have been used principally for agriculture for a set number of preceding years and does not automatically transfer to a new owner -- confirm directly with the appraisal district what current use and acreage documentation it requires, since a change in ownership or a genuine change in use can trigger review and a rollback tax recapturing prior years' savings.