Rock Island Zip Codes - Colorado County TX

Rock Island, TX Zip Code Map

Rock Island, TX is a city located in Colorado County, Texas and has a land area of 28.54 square miles (73.92 km2). The water area for the city is 0.37 square miles or 0.96 km2. There is one unique zip code in Rock Island, Texas and it is 77470. The area code(s) for Rock Island is 979.

Zip Codes for Rock Island, TX (1)
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77470 Rock Island Colorado

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