Colorado County, Texas ZIP codes
12 ZIP codes are in Colorado County, plus 7 that cross in from neighboring counties.
- ZIP codes
- 12
- Population in these ZIPs
- 21,002
- Avg. median income
- $67,300population-weighted
- Cities & towns
- 12
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Colorado County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 77412 | Altair | 6 | — | — |
| 77434 | Eagle Lake | 3,970 | $71,705 | $160,800 |
| 77442 | Garwood | 1,123 | $70,859 | $250,900 |
| 77460 | Nada | 76 | — | — |
| 77470 | Rock Island | 414 | $43,149 | $122,800 |
| 77475 | Sheridan | 431 | $63,308 | $233,400 |
| 78933 | Cat Spring | 1,395 | $68,444 | $621,000 |
| 78934 | Columbus | 6,731 | $58,302 | $306,300 |
| 78935 | Alleyton | 734 | — | $435,600 |
| 78943 | Glidden | 886 | $98,531 | $150,300 |
| 78951 | Oakland | 0 | — | — |
| 78962 | Weimar | 5,236 | $71,278 | $346,700 |
ZIP codes partly in Colorado County
These ZIP codes are mostly in a neighboring county but cover part of Colorado County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 77435 | East Bernard | Wharton County | 4,812 | $68,778 | $345,500 |
| 77455 | Louise | Wharton County | 1,629 | $77,625 | $354,600 |
| 77474 | Sealy | Austin County | 15,146 | $75,272 | $382,700 |
| 77488 | Wharton | Wharton County | 14,548 | $60,327 | $214,500 |
| 77964 | Hallettsville | Lavaca County | 8,204 | $68,056 | $346,000 |
| 78940 | Fayetteville | Fayette County | 2,188 | $89,157 | $569,500 |
| 78950 | New Ulm | Austin County | 2,300 | $91,354 | $592,200 |
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 and towns in Colorado County
Nearby counties
Frequently asked questions
How many ZIP codes are in Colorado County, Texas?
12 ZIP codes are mainly in Colorado County, and 7 more ZIP codes from neighboring areas reach partly into it.
What cities are in Colorado County?
ZIP codes in Colorado County use the city names Alleyton, Altair, Cat Spring, Columbus, Eagle Lake, Garwood, Glidden, Nada, Oakland, Rock Island, Sheridan and Weimar.