Buying Land in Wilson County, Texas

A county riding San Antonio’s growth wave

Wilson County's population growth is not a rounding error: from 32,408 residents in 2000, the county grew to 42,918 by 2010 (a 32.4% jump) and 49,753 by 2020 (another 15.9%), with 2026 estimates putting the county at roughly 56,900 to 57,000 residents. That trajectory is concentrated along the US 87 and US 181 corridors radiating out of San Antonio, through Floresville (the county seat), La Vernia, Stockdale, and Poth -- towns that have gone from small ranching communities to genuine exurban growth points inside a generation. For a land buyer, that cuts two ways: it's real evidence of appreciation potential and expanding local services, but it also means more competition for rural acreage close to the growth corridors, more subdivision activity converting ranch land to residential lots, and rising pressure on county infrastructure -- roads, water systems, and septic capacity -- that a static, slow-growth county simply doesn't generate.

That growth also raises the stakes on agricultural (1-d-1 open-space) valuation and rollback tax exposure specifically in Wilson County. Ranch and farm tracts that have carried a reduced ag-use appraisal for years are increasingly attractive to buyers looking to subdivide or build residentially given the county's growth trajectory -- and converting such land away from agricultural use triggers a rollback tax that recaptures the difference between ag-use and market-value taxes for the preceding years, plus interest. Given how much land-use conversion pressure this county specifically faces compared to its more static neighbors, confirm directly with the Wilson County Appraisal District whether a specific parcel currently carries an ag exemption and what maintaining or losing it would mean for your purchase.

Groundwater: a four-county district absorbing uneven growth

Wilson County's groundwater is managed by the Evergreen Underground Water Conservation District (EUWCD), created in 1965 and shared with Atascosa, Frio, and Karnes Counties, drawing primarily on the Carrizo-Wilcox Aquifer. Because EUWCD sets well-permitting rules, spacing requirements, and production priorities for all four counties as a group, its framework was built around a broadly agricultural and, in Karnes's case, oil-and-gas-driven set of pressures -- not a fast-growing residential exurb. Wilson County's unusually rapid population growth relative to its EUWCD partner counties means demand for new domestic wells here is likely to keep outpacing that in the district's other member counties, which is worth raising directly with the district when you're checking permitting timelines or exemption thresholds rather than assuming Wilson-specific responsiveness to that growth.

Septic permitting sits with the county, not a TCEQ regional office

Wilson County has no general zoning ordinance for unincorporated land, consistent with the statewide default -- zoning here belongs to Floresville, La Vernia, and Stockdale within their city limits and extraterritorial jurisdictions. On septic, Wilson County Health & Public Safety runs its own on-site sewage facility (OSSF) program, including the authority to enter a property for soil and site evaluation, rather than routing applications to a TCEQ regional office (the county falls under TCEQ Region 13, headquartered in San Antonio, for functions the county does not handle directly). Confirm current permit fees, required paperwork, and processing timelines directly with the department before budgeting a system -- and given the pace of new construction here, ask specifically about current wait times rather than assuming a rural-county timeline.