Texas
Buying Land in Erath County, Texas
Erath County, seat Stephenville and home to Tarleton State University, built its identity as the self-described "Dairy Capital of Texas." That dairy legacy comes with a real regulatory layer -- decades of watershed-specific nutrient rules for the North Bosque River -- worth understanding alongside the county's own groundwater district before buying land here.
The North Bosque River watershed: dairy country under real nutrient regulation
Stephenville has long styled itself the "Dairy Capital of Texas," and while the number of active dairy herds has thinned from the industry's peak, the regulatory infrastructure built around Erath County's dairy concentration is still very real and worth understanding. The North Bosque River's headwaters rise here, just north of Stephenville, and the watershed downstream (through Erath and into Bosque County) became a national example of watershed-specific CAFO nutrient regulation because dairy waste runoff was driving measurable phosphorus loading into the river. TCEQ amended its CAFO rules in 2004 specifically for dairies in this watershed, requiring Nutrient Management Plans (NMPs) -- and by the end of 2010, all 55 dairy CAFOs operating in the watershed at that point had certified Comprehensive Nutrient Management Plans in place, developed with support from the Texas State Soil and Water Conservation Board (TSSWCB) and Texas A&M AgriLife Extension. TCEQ revised the CAFO rule again in 2014 to track updated federal requirements, and has set formal phosphorus TMDLs (Total Maximum Daily Loads) for both the Upper North Bosque River and North Bosque River segments, with TCEQ continuing to publish water-quality trend reports for the watershed. See our standalone livestock-feedlots page for what this means if you're buying land for, or near, a dairy or similar operation here.
Groundwater: a locally formed district covering four counties
Erath County's groundwater is managed by the Middle Trinity Groundwater Conservation District (MTGCD), formed in 2004 through a local petition process initiated by Erath and Comanche Counties -- Bosque County joined in 2009 and Coryell County in 2010, giving MTGCD its current four-county footprint. A well used solely for domestic, livestock, or poultry purposes and incapable of producing more than 25,000 gallons per day generally qualifies as exempt from an operating permit, but exempt status does not mean unregulated: every well, exempt or not, needs MTGCD approval before drilling begins, and exempt wells still must be registered with the District. Confirm current rules and registration requirements directly with MTGCD (930 Wolfe Nursery Road, Stephenville) before drilling.
Zoning, subdivision, and septic
Erath County has no general zoning authority over its unincorporated area, consistent with the statewide default described on the Texas hub -- rural subdivision development, agricultural operations, and similar uses can generally locate in the unincorporated county subject to state environmental permits (like the North Bosque nutrient-management rules above) rather than local zoning approval. The county's Land Development department, however, does administer real local rules: subdivision regulations, floodplain management under the county's Flood Damage Prevention Ordinance, and 9-1-1 rural addressing. This research could not confirm Erath County's TCEQ authorized-agent status for OSSF (septic) permitting -- confirm directly with TCEQ or Land Development (254-965-1452) before assuming a particular permitting process or timeline.
Who to Call Before Buying Land in Erath County
Erath County has no general zoning ordinance for its unincorporated area, consistent with the statewide default. For a parcel inside Stephenville or another city's limits or ETJ, contact that city's own planning department instead of the county.
Subdivision & Land Development
Erath County Land Development
Subdivision regulations, floodplain management, manufactured-home community rules, and 9-1-1 rural addressing for unincorporated Erath County land.
Wells / Private Water
Middle Trinity Groundwater Conservation District
Well drilling approval, registration, and exempt-well rules for any well in Erath, Bosque, Comanche, or Coryell County.
Environmental Health
TCEQ On-Site Sewage Facilities (OSSF) Program
Confirming whether Erath County is a TCEQ authorized agent for septic permitting, or whether permits route through a TCEQ regional office.
Assessor / Property Tax
Erath County Appraisal District
Assessed value, property tax, and agricultural (ag/wildlife) valuation questions for a specific parcel.
Recorder / Clerk / Land Records
Erath County Clerk
Recorded deed, easement, and plat history for a specific parcel.
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Get local guidanceTopics Specific to Erath County
Sources
- Two Total Maximum Daily Loads for Phosphorus in the North Bosque River — Texas Commission on Environmental Quality (TCEQ) (accessed 2026-09)
- North Bosque River: General Uses — Texas Commission on Environmental Quality (TCEQ) (accessed 2026-09)
- Extending TMDL Efforts in the North Bosque River Watershed — Texas State Soil and Water Conservation Board (TSSWCB) (accessed 2026-09)
- Middle Trinity Groundwater Conservation District -- District History — Middle Trinity Groundwater Conservation District (accessed 2026-09)
- Middle Trinity Groundwater Conservation District -- District Rules & Compliance — Middle Trinity Groundwater Conservation District (accessed 2026-09)
- Land Development — Erath County, Texas Government (accessed 2026-09)
- Erath County, Texas — Wikipedia (background/context only, corroborated against TSHA and county sources for load-bearing facts) (accessed 2026-09)
Last reviewed 2026-09