We have 39 parcels measured as septic in ZIP 77450 itself (Harris County, Texas), out of 14,752 parcels in our records for this ZIP, of which 14,713 are recorded as on sewer.
ZCTA 77450 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 | 65% | — | 128,872 | 1,412,534 |
| Fort Bend County, Texas | 35% | — | 20,399 | 352,341 |
2 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 |
|---|---|---|---|
| Katy Plumbing Service | Katy | (832) 225-8086 | 2.0 (4) |
| Septic Services Green | Katy | (281) 650-8100 | — |
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 39 parcels as septic in ZIP 77450 itself, out of 14,752 parcels in our records for this ZIP.
ZIP 77450 spans 2 counties: Harris County, Texas, Fort Bend County, Texas.