Zip Area Code

Rock Island, Texas

Rock Island, Texas, in Colorado County, has ZIP code 77470 and area code 979.

ZIP code
77470
Area code
979
State
Texas
Time zone
Central Time
Coordinates
29.5311, -96.5752

ZIP codes in Rock Island

ZIP codePost officeCountyArea codes
77470Rock IslandColorado County979

Area code for Rock Island

  • Area code 979

    In service since February 19, 2000. Local calls are dialed with seven digits.

Time zone

Rock Island is in the Central Time zone.

Towns near Rock Island