County ZIP codes · Texas · FIPS 48473
Waller County, TX ZIP Codes
Waller County, Texas has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 5 of the residential ones lie mainly in Waller County and 5 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $65,909 in 77445 (Hempstead) to $148,720 in 77494 (Katy) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Waller County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $81,250 and $116,925.
They carry 9 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 10 residential ZIP codes in Waller County
5 ZIP codes lie mainly in Waller County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 77423 | Brookshire | 18,767 | 126 | $85k | $315k | 92% |
| 77445 | Hempstead | 16,142 | 87 | $66k | $270k | 100% |
| 77484 | Waller | 14,348 | 95 | $81k | $285k | 78% |
| 77446 | Prairie View | 5,780 | 2,178 | $21k | $251k | 100% |
| 77466 | Pattison | 220 | 24 | $47k | $263k | 100% |
Partly in Waller County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 77493 | Katy | 71,484 | 1,157 | $119k | $358k | 32% |
| 77447 | Hockley | 25,231 | 244 | $117k | $326k | 29% |
| 77355 | Magnolia | 32,847 | 591 | $102k | $341k | 10% |
| 77494 | Katy | 140,157 | 3,696 | $149k | $476k | 8% |
| 77363 | Plantersville | 3,468 | 59 | $75k | $318k | 2% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
7 ZIP codes of Waller County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Waller | Elsewhere |
|---|---|---|
| 77494 | 8% | Fort Bend County 85%; Harris County 7% |
| 77493 | 32% | Harris County 68% |
| 77355 | 10% | Montgomery County 90% |
| 77447 | 29% | Harris County 67%; Montgomery County 5% |
| 77423 | 92% | Fort Bend County 8% |
| 77484 | 78% | Harris County 21%; Grimes County 1% |
| 77363 | 2% | Grimes County 98% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Waller County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Waller County's ZIP codes use 2 prefixes: 773 and 774.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.