Postal reference / United States
77491Katy, Texas
ZIP code 77491 is a United States postal code for Katy, Texas. Its county association is Harris County. The map reference point is at 29.7858, -95.8244.
- State / territory
- Texas
- Recorded place name
- Katy
- County association
- Harris
- Estimated coordinate
- 29.7858, -95.8244
View on OpenStreetMap - ZIP prefix
- 774 · 83 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Need the last four digits?
ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.
Find ZIP+4Explore Texas
Browse the other 2,599 ZIP codes recorded for Texas, sorted by code with place and county.
Texas directoryOther ZIP codes in Katy, TX
Katy has 6 ZIP codes in the reference dataset.
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 77492 | Katy | TX | Harris | 0.0 |
| 77494 | Katy | TX | Harris | 3.2 |
| 77493 | Katy | TX | Harris | 5.7 |
| 77450 | Katy | TX | Harris | 6.2 |
| 77449 | Katy | TX | Harris | 6.2 |
| 77441 | Fulshear | TX | Fort Bend | 6.2 |
| 77094 | Houston | TX | Harris | 6.9 |
| 77413 | Barker | TX | Harris | 8.4 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
Verify a mailing address
For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.
Open USPS address lookup