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Rock Island County ZIP Codes

List of ZIP Codes in Rock Island County

The following table lists ZIP Codes associated with Rock Island County, Illinois, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.


S.N. Zip Code Latitude Longitude City Population Density
1 61201 41.47799 -90.57608 Rock Island 37,294 805.6
2 61232 41.43168 -90.72734 Andalusia 1,498 179.1
3 61236 41.51242 -90.35586 Barstow 43 20.7
4 61237 41.34175 -90.86221 Buffalo Prairie 0 0.0
5 61239 41.49479 -90.38966 Carbon Cliff 1,138 555.6
6 61240 41.42579 -90.4325 Coal Valley 5,988 63.5
7 61242 41.70363 -90.27858 Cordova 1,135 14.0
8 61244 41.52138 -90.39424 East Moline 23,288 333.7
9 61256 41.56017 -90.40151 Hampton 1,946 506.3
10 61257 41.59025 -90.22322 Hillsdale 866 8.1
11 61259 41.38839 -90.92733 Illinois City 1,107 5.6
12 61264 41.39765 -90.59452 Milan 10,056 56.4
13 61265 41.48195 -90.48895 Moline 43,851 880.9
14 61275 41.60016 -90.29781 Port Byron 4,226 49.1
15 61278 41.57938 -90.34138 Rapids City 671 167.1
16 61282 41.49673 -90.41172 Silvis 8,345 1025.6
17 61284 41.3927 -90.74874 Taylor Ridge 2,122 18.5


About Rock Island County ZIP Codes

Rock Island County in Illinois (IL) is served by approximately 17 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.

Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 143,574 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.

Many of the most significant population centers in Rock Island County are located in cities such as Moline, Rock Island, East Moline, Milan, Silvis. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in Rock Island County, Illinois follow the America/Chicago time zone.

Illinois Counties ZIP Codes

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