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ZIP Code Database - Facts & Stats

Data Last Updated: January 1, 2022

ZIP Codes for City of Rock Island, TX

Rock Island, TX Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 77470P.O. BoxColorado338979

Timezone(s):Central (GMT -06:00)
Population:338 (More Details)
Male Population:177
Female Population:161
Median Age:43
ZIP Codes:1
Area Codes:1
Total Area:974 square miles (county)
Land Area:960 square miles (county)
Water Area:13 square miles (county)

Rock Island, TX Demographic Information *

There is no Census data for the city of ROCK ISLAND, TX. We have pulled information for the ZIP Code 77470 instead.
Total population338
Male population177
Female population161
Median age (years)42.6
White Population299
Black Population6
Indian Population0
Asian Population0
Hawaiian Population0
Hispanic Population54
Median age (Male)40.5
Median age (Female)45.6
Total households140
Family households (families)86
Average household size2.41
Average family size3.15
Total housing units197
* Demographic data is based on 2010 Census.

Rock Island, TX Other Information

37 Cities within 30 miles of Rock Island, TX Products


  1. U.S. Postal Service [Last Updated: 1/1/2022],
  2. Internal Data Creation [Last Updated: 1/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],