Katy, TX ZIP codes
Katy, Texas has 6 ZIP codes, including 2 PO Box ZIPs. They are in Harris County and Fort Bend County.
- Population in these ZIPs
- 413,575
- Avg. median income
- $117,000population-weighted
- Typical home value
- $368,500population-weighted
- Metro area
- Houston-Pasadena-The Woodlands, TX
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Katy, TX ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 77449 | Harris County | 130,028 | $87,808 | $264,900 |
| 77450 | Harris County | 71,906 | $106,402 | $375,000 |
| 77491 PO Box | Harris County | — | — | — |
| 77492 PO Box | Harris County | — | — | — |
| 77493 | Harris County | 71,484 | $118,464 | $335,800 |
| 77494 | Fort Bend County | 140,157 | $148,720 | $478,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Katy
- Fulshear 10 mi
- Brookshire 12 mi
- Pattison 13 mi
- Simonton 13 mi
- Cypress 13 mi
- Richmond 14 mi
- Orchard 15 mi
- Sugar Land 16 mi
- Rosenberg 17 mi
- Hockley 18 mi
- Stafford 18 mi
- San Felipe 19 mi
Frequently asked questions
What is the ZIP code for Katy, TX?
Katy, TX has 6 ZIP codes: 77449, 77450, 77491, 77492, 77493 and 77494.
What county is Katy, Texas in?
Katy ZIP codes are in Harris County and Fort Bend County.
Which Katy ZIP codes are PO Boxes?
77491 and 77492 are PO Box or single-organization ZIP codes; they have no residential delivery area.