ZIP 75189 falls in Rockwall County, Texas, where we hold 8 septic-related documents. We have not classified septic-versus-sewer status for this county, and we do not have a per-ZIP parcel count -- see the county page for what we hold and where the records are kept.
ZCTA 75189 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) |
|---|---|---|---|---|
| Rockwall County, Texas | 42% | 8 | — | — |
| Hunt County, Texas | 38% | 23 | — | — |
| Collin County, Texas | 19% | 1,144 | — | — |
1 businesses on record with an address in this ZIP: pumping, installation, design, inspection and repair. Not an endorsement, and we take no fee.
| Company | City | Phone | Rating |
|---|---|---|---|
| Advanced Septic Technology | Royse City | (903) 356-4344 | 5.0 (1) |
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 have not measured septic-versus-sewer status for this county yet.
ZIP 75189 spans 3 counties: Rockwall County, Texas, Hunt County, Texas, Collin County, Texas.