ZIP Code 77470
Rock Island, Texas · Colorado County
No34136
Zip77470
TypePO BOX
Decommissioned0
Primary CityRock Island
Acceptable Cities—
Unacceptable Cities—
StateTX
LstateTexas
CountyColorado County
TimezoneAmerica/Chicago
Area Codes979
World RegionNA
CountryUS
Latitude29,54
Longitude-96,55