Texas calls them OSSFs, on-site sewage facilities, and their records are held locally: counties, cities, and river authorities act as authorized agents that permit and file septic systems under state oversight. There is no single statewide lookup, so the first question for any Texas property is which local agent holds the file.
OSSF permitting in Texas is carried out by local authorized agents, most often a county department, sometimes a city or a river authority, operating under the state environmental agency's oversight. Which office holds the records, and whether it offers any online search, differs county by county. Our per-county pages state what we found when we tested each route: Texas septic records by county.
As of September 2026 our corpus holds 281,571 recorded septic documents across 6 Texas counties, part of the more than 5.2 million documents we have collected across 31 states. These are recorded documents from public sources, tied to parcels and viewable on the parcel map, and the count grows as more Texas counties come online.
Many rural Texas systems, especially older ones, were never filed with any agent. For those, our generator produces a free estimated design from code tables and nearby recorded systems. It is estimated, NOT a county-stamped document.
Every Texas county page states where the OSSF records are kept and what we hold. The parcel map shows the documents tied to a specific property.
Find your county's septic records Open the parcel map and design tool
No single public statewide lookup. OSSF records are filed with local authorized agents, usually a county office, sometimes a city or river authority, so the county page naming the right custodian is the first step.
As of September 2026, 281,571 recorded septic documents across 6 Texas counties, with per-county counts on each county page. Coverage grows as more counties come online.
On-site sewage facility, the Texas regulatory term for a septic system. Permits, inspections, and as-builts for a property are filed under its OSSF record with the local authorized agent.
Common for older rural systems. A free estimated design from our generator, built from code tables and nearby recorded systems, is the practical substitute. It is estimated, NOT a county-stamped document.
Guide last reviewed 2026-09-08.