Texas
Buying Land in Coleman County, Texas
Coleman County, seat Coleman, sits in the Concho Valley south of Abilene with a ranching-and-cotton economy dating to the 1880s. The county has adopted its own model subdivision rules governing wells and septic systems in any platted subdivision, though this research could not pin down whether a groundwater conservation district currently covers the county.
No general zoning outside city limits
Coleman County does not appear among the named Chapter 231 exceptions, so the Commissioners Court has no general zoning authority over unincorporated land, consistent with the statewide default. The county's own subdivision rules, discussed below, are the more consequential local layer for anyone planning to divide or develop land here.
A real, own-adopted subdivision ordinance
Coleman County has adopted its own Model Subdivision Rules, posted by the county itself, which state that water wells and septic systems constructed in county subdivisions must conform to TCEQ rules and regulations, (an older reference to) Texas Department of Health standards, and county requirements, and specify that no septic tank permit will be issued unless the system meets state law as applied to local conditions. That means a buyer planning to subdivide land in Coleman County is dealing with more than Chapter 232's bare statutory minimum for plat approval -- there's an actual county-adopted rulebook governing water and wastewater infrastructure for new subdivisions. Confirm the current, full text of these rules and any recent amendments directly with the Commissioners Court, since this research reviewed only a summary of the document's septic/well provisions rather than its complete text.
An unresolved question: does a groundwater district cover this county?
Unlike several other counties in this research batch, this research could not cleanly confirm Coleman County's groundwater conservation district status in either direction. Coleman County appears labeled on the Texas Water Development Board's general statewide map of GCDs, which suggests some district-level coverage exists somewhere in the state's overall framework for the area -- but no specific district's own site, management plan, or member roster reviewed in this research explicitly listed Coleman County as a member. This is a genuine gap in this research rather than a confirmed "no district covers this county" finding (contrast with Clay County elsewhere in this batch, where the absence from every reviewed district's roster was more consistent). Before relying on either a specific district's rules or the bare rule of capture, confirm directly with the Texas Water Development Board or the Coleman County Commissioners Court which groundwater conservation district, if any, currently covers the county.
A ranching-to-cotton economy since the 1880s
Coleman County's economy was built between 1880 and 1920 on agriculture and ranching, before shifting toward cotton as the principal crop after 1900, as open range was sold and cultivated -- Santa Anna, the county's second-oldest town (incorporated 1906), grew as a cattle-shipping point and had four cotton gins in operation during that era. Santa Anna itself takes its name from twin buttes north of town, in turn named for a Comanche chief. That agricultural history is reflected today in the county's working ranch and farmland base, though a buyer should not assume any specific parcel's soil or water access without direct due diligence.
Who to Call Before Buying Land in Coleman County
Coleman County has no general zoning authority and is not a named exception under Local Government Code Chapter 231. This research could not confirm whether a groundwater conservation district currently covers Coleman County, nor could it confirm the county's TCEQ OSSF authorized-agent status -- confirm both directly rather than assuming either way.
Subdivision & Land Development
Coleman County Commissioners Court
Current text and requirements of the county's own Model Subdivision Rules, including well and septic-system standards for any platted subdivision.
Wells / Private Water
Texas Water Development Board — Groundwater Conservation Districts
Confirming whether a groundwater conservation district currently covers Coleman County, since this research could not identify one with certainty.
Septic / Onsite Wastewater
TCEQ Region 3 Office (Abilene)
Septic (OSSF) permitting contact for Coleman County if the county is not a TCEQ authorized agent -- this research could not confirm the county's authorized-agent status either way.
Assessor / Property Tax
Coleman County Appraisal District
Assessed value, agricultural valuation, and property tax questions for a specific parcel.
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- Subdivision Rules - Coleman County Government — Coleman County, Texas (accessed 2026-09)
- Groundwater Conservation Districts of Texas — Texas Water Development Board (accessed 2026-09)
- District Members — Texas Alliance of Groundwater Districts (accessed 2026-09)
- Which TCEQ Region is My County In? — Texas Commission on Environmental Quality (accessed 2026-09)
- Coleman County, Texas: Geography, History, and Economy — Texas State Historical Association (accessed 2026-09)
- History and Development of Santa Anna, Texas — Texas State Historical Association (accessed 2026-09)
- Coleman County Appraisal District — Coleman County Appraisal District (accessed 2026-09)
Last reviewed 2026-09