Rock Island, TX zip code
Rock Island, Texas uses one zip code: 77470. Most of it is in Colorado County. Together these zip codes are home to about 414 people.
Zip codes
1
Population
414
All zips combined
Largest zip
77470
414 residents
Zip codes in Rock Island
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 77470 | 414 | $43,149 |