ZIP 78266 falls in Comal County, Texas, where we hold 53,050 parcels measured as septic county-wide and 16,927 on sewer. We do not have a per-ZIP parcel count for this county, so this is the county total, not a count specific to ZIP 78266.
ZCTA 78266 is not entirely inside one county. Land-area share is from the 2020 Census ZCTA-to-county relationship file.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Comal County, Texas | 80% | 99,906 | 53,050 | 16,927 |
| Bexar County, Texas | 20% | — | 20,309 | 684,891 |
Land-area overlap is from the 2020 Census Bureau ZCTA5-to-county relationship file, not an estimate of ours. Parcel and document counts are rows we hold, not a survey of every property in the ZIP. Last verified 2026-09-01.
We hold 53,050 parcels measured as septic for Comal County, Texas as a whole, not broken out by ZIP.
ZIP 78266 spans 2 counties: Comal County, Texas, Bexar County, Texas.