Texas
Buying Land in La Salle County, Texas
La Salle County, seat Cotulla, sits at the heart of the Eagle Ford Shale, where the boom's first well was drilled in 2008. Unlike most rural Texas counties, La Salle has actually adopted its own posted subdivision rules -- and it shares a groundwater district with Dimmit County, under a different specific rule than what that county's page covers.
Subdivision rules: a real, posted local ordinance
Unlike many rural Texas counties where 'no zoning' effectively means 'confirm platting requirements directly because nothing is posted,' La Salle County has adopted its own Model Subdivision Rules and posted a detailed design-and-construction specifications appendix through the Commissioners Court. This traces to a specific state requirement: Texas Water Code Section 16.343 requires counties within 50 miles of the Texas-Mexico border (as well as certain economically distressed counties elsewhere) to adopt and enforce Model Subdivision Rules developed by the Texas Water Development Board, specifically to prevent the kind of colonias development -- residential lots sold without adequate water, sewer, or drainage infrastructure -- that has been a documented problem along the border. Statewide, these rules generally prohibit residential lots of five acres or less without adequate water and sewer service and limit development to one single-family dwelling per lot, among other standards. Get La Salle County's current subdivision rules and design specifications directly from the Commissioners Court before platting or dividing a specific tract; this is a real ordinance to check, not a formality.
Groundwater: shared district with Dimmit, different rule to watch
La Salle County sits entirely inside the Wintergarden Groundwater Conservation District, alongside Dimmit and Zavala Counties. Where the Dimmit County hub covers WGCD's registration requirement for hydraulic-fracturing water-supply wells, the rule most relevant to a typical La Salle landowner is different: WGCD requires reporting once agricultural or livestock groundwater production from a well exceeds 25,000 gallons per day. That's a concrete, checkable number to have in mind if a planned irrigation system, stock-watering operation, or other agricultural use could approach that volume -- it's the kind of threshold that's easy to cross without realizing it once a well is actually pumping at capacity. Confirm current reporting thresholds, registration requirements, and any permit obligations directly with WGCD before counting on a specific production volume.
The Eagle Ford boom's real, documented local footprint
La Salle County isn't on the edge of the Eagle Ford Shale story -- the play's first well in this stretch of South Texas was drilled in central La Salle County in 2008, and the county has felt the boom's effects directly and by the numbers. Cotulla's own city administrator described the town's hotel count rising from just 4 before the boom to a reported 24 during it, and the county's oil-and-gas workforce has been reported at 909 workers earning an average of $151,419 annually. City officials have also stated Cotulla's population roughly doubled during the boom years, with 'man camps' and workforce-housing developments (some run by third-party logistics operators) supplementing traditional housing stock -- though Census-based population figures for the same years show only modest permanent-resident growth, so that 'doubled' figure more likely describes transient oilfield-worker housing than a literal doubling of year-round residents (CORRECTED 2026-09). For a land buyer, this history is worth knowing both as economic context and as a signal that housing demand, and land values, in and around Cotulla can move with oil-and-gas activity cycles more than in a county without this kind of boom-town history.
Who to Call Before Buying Land in La Salle County
La Salle County has no general zoning authority under Texas law, so there is no planning_zoning entry above -- but unlike most rural Texas counties, it does have adopted subdivision rules (see above), so subdivision-development questions have a real local ordinance to check.
Subdivision & Land Development
La Salle County Commissioners Court
Current Model Subdivision Rules, design-and-construction specifications, and plat approval for a specific tract.
Wells / Private Water
Wintergarden Groundwater Conservation District
Well registration, production-reporting thresholds, and permitting rules for any well in La Salle, Dimmit, or Zavala County.
Environmental Health
TCEQ Region 16 -- Laredo
On-site sewage facility (septic) permitting for La Salle County, absent a confirmed local authorized agent.
Assessor / Property Tax
La Salle County Appraisal District
Assessed value, property tax, and agricultural (ag/wildlife) valuation questions for a specific parcel.
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Get local guidanceTopics Specific to La Salle County
Sources
- Model Subdivision Rules — La Salle County, Texas (accessed 2026-09)
- Appendix A: Design and Construction Specifications — La Salle County, Texas (accessed 2026-09)
- Texas Water Code Section 16.343 -- Minimum State Standards and Model Political Subdivision Rules — Texas.Public.Law (accessed 2026-09)
- Colonias Prevention Laws — Office of the Texas Attorney General (accessed 2026-09)
- Wintergarden Groundwater Conservation District — Wintergarden Groundwater Conservation District (accessed 2026-09)
- Shale of the Century: Small Towns Dazed by Eagle Ford Influx — Texas Real Estate Research Center, Texas A&M University (accessed 2026-09)
- Eagle Ford Shale | La Salle County, TX — EagleFordShale.com (accessed 2026-09)
- Which TCEQ Region is My County In? — Texas Commission on Environmental Quality (TCEQ) (accessed 2026-09)
Last reviewed 2026-09