We have 2,773 parcels measured as septic in ZIP 77447 itself (Harris County, Texas), out of 14,570 parcels in our records for this ZIP, of which 11,797 are recorded as on sewer.
ZCTA 77447 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) |
|---|---|---|---|---|
| Harris County, Texas | 67% | — | 128,872 | 1,412,534 |
| Waller County, Texas | 29% | 6 | — | — |
| Montgomery County, Texas | 5% | — | 58,102 | 238,683 |
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 |
|---|---|---|---|
| Bonds Water | Houston | (713) 679-0250 | — |
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 measured 2,773 parcels as septic in ZIP 77447 itself, out of 14,570 parcels in our records for this ZIP.
ZIP 77447 spans 3 counties: Harris County, Texas, Waller County, Texas, Montgomery County, Texas.