{"id":2877,"date":"2023-04-19T07:48:26","date_gmt":"2023-04-19T07:48:26","guid":{"rendered":"https:\/\/townsvillages.com\/us\/?p=2877"},"modified":"2026-08-07T18:59:41","modified_gmt":"2026-08-07T18:59:41","slug":"rock-island-county","status":"publish","type":"post","link":"https:\/\/townsvillages.com\/us\/rock-island-county\/","title":{"rendered":"Rock Island County, Illinois"},"content":{"rendered":"

Rock Island County is a county in Illinois, United States, on the Mississippi River across from
\nDavenport and Bettendorf, Iowa. It had a population of 144,672 at the 2020 census, an estimated
\n142,757 by 2024, and covers 428 square miles (1,110 km2) of land centred near 41\u00b028\u2032N 90\u00b034\u2032W.<\/p>\n

Rock Island is the county seat; its postal code is 61201. The county holds 4 cities, 11
\nincorporated villages and 9 unincorporated communities across 18 townships, and it runs on Central
\nTime.<\/p>\n

Towns & Villages in Rock Island County<\/h2>\n

Rock Island County has 24 named places on record: 4 cities, 11 incorporated villages and 9
\ncensus-designated places (CDPs) with no local government of their own. CDP stands for census
\ndesignated place; Unincorp. covers crossroads and rural communities with no formal boundary.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Place<\/th>\nType<\/th>\nTownship<\/th>\nPop.<\/th>\nZIP<\/th>\n<\/tr>\n<\/thead>\n
Moline<\/td>\nCity<\/td>\nMoline<\/td>\n42,985<\/td>\n61265<\/td>\n<\/tr>\n
Rock Island<\/td>\nCity · seat<\/td>\nRock Island<\/td>\n37,108<\/td>\n61201<\/td>\n<\/tr>\n
East Moline<\/td>\nCity<\/td>\n—<\/td>\n21,374<\/td>\n61244<\/td>\n<\/tr>\n
Silvis<\/td>\nCity<\/td>\n—<\/td>\n8,003<\/td>\n61282<\/td>\n<\/tr>\n
Milan<\/td>\nVillage<\/td>\n—<\/td>\n5,097<\/td>\n61264<\/td>\n<\/tr>\n
Coal Valley<\/td>\nVillage<\/td>\nCoal Valley<\/td>\n3,873<\/td>\n61240<\/td>\n<\/tr>\n
Carbon Cliff<\/td>\nVillage<\/td>\nHampton<\/td>\n1,846<\/td>\n61239<\/td>\n<\/tr>\n
Hampton<\/td>\nVillage<\/td>\nHampton<\/td>\n1,779<\/td>\n61256<\/td>\n<\/tr>\n
Port Byron<\/td>\nVillage<\/td>\nPort Byron<\/td>\n1,668<\/td>\n61275<\/td>\n<\/tr>\n
Andalusia<\/td>\nVillage<\/td>\nAndalusia<\/td>\n1,184<\/td>\n61232<\/td>\n<\/tr>\n
Rapids City<\/td>\nVillage<\/td>\n—<\/td>\n964<\/td>\n61275<\/td>\n<\/tr>\n
Coyne Center<\/td>\nCDP<\/td>\n—<\/td>\n877<\/td>\n—<\/td>\n<\/tr>\n
Cordova<\/td>\nVillage<\/td>\nCordova<\/td>\n671<\/td>\n61242<\/td>\n<\/tr>\n
Reynolds<\/td>\nVillage<\/td>\n—<\/td>\n498<\/td>\n61279<\/td>\n<\/tr>\n
Oak Grove<\/td>\nVillage<\/td>\n—<\/td>\n476<\/td>\n—<\/td>\n<\/tr>\n
Hillsdale<\/td>\nVillage<\/td>\n—<\/td>\n417<\/td>\n61257<\/td>\n<\/tr>\n
Edgington<\/td>\nCDP<\/td>\nEdgington<\/td>\n391<\/td>\n—<\/td>\n<\/tr>\n
Campbell’s Island<\/td>\nCDP<\/td>\n—<\/td>\n275<\/td>\n—<\/td>\n<\/tr>\n
Rock Island Arsenal<\/td>\nCDP<\/td>\n—<\/td>\n182<\/td>\n—<\/td>\n<\/tr>\n
Illinois City<\/td>\nCDP<\/td>\n—<\/td>\n159<\/td>\n—<\/td>\n<\/tr>\n
Taylor Ridge<\/td>\nCDP<\/td>\n—<\/td>\n141<\/td>\n—<\/td>\n<\/tr>\n
Barstow<\/td>\nCDP<\/td>\n—<\/td>\n89<\/td>\n—<\/td>\n<\/tr>\n
Joslin<\/td>\nCDP<\/td>\n—<\/td>\n85<\/td>\n—<\/td>\n<\/tr>\n
Buffalo Prairie<\/td>\nCDP<\/td>\nBuffalo Prairie<\/td>\n64<\/td>\n—<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Rock Island Arsenal is both a place name and the federal property it sits on — a 946-acre
\nisland in the Mississippi River that carries no township assignment because it is entirely
\ngovernment land, not part of any civil township. Rapids City shares Port Byron’s 61275 ZIP
\ncode rather than having its own; the two villages sit about two miles apart along the river.<\/p>\n

Townships<\/h2>\n

The Census Bureau has not published 2020 population figures broken out by Rock Island
\nCounty’s 18 civil townships; the most recent official township-level counts are from the 2010
\ncensus. They are listed below by that 2010 population, descending, with each township’s main
\nsettlement.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Township<\/th>\nPop. (2010)<\/th>\nMain settlements<\/th>\n<\/tr>\n<\/thead>\n
South Moline<\/td>\n36,399<\/td>\nunincorporated Moline-area urban land<\/td>\n<\/tr>\n
Moline<\/td>\n23,529<\/td>\nMoline<\/td>\n<\/tr>\n
Hampton<\/td>\n21,711<\/td>\nHampton, Carbon Cliff<\/td>\n<\/tr>\n
South Rock Island<\/td>\n18,407<\/td>\nunincorporated Rock Island-area urban land<\/td>\n<\/tr>\n
Rock Island<\/td>\n17,776<\/td>\nRock Island<\/td>\n<\/tr>\n
Blackhawk<\/td>\n10,019<\/td>\nunincorporated urban land<\/td>\n<\/tr>\n
Coal Valley<\/td>\n4,408<\/td>\nCoal Valley<\/td>\n<\/tr>\n
Bowling<\/td>\n3,414<\/td>\nrural<\/td>\n<\/tr>\n
Andalusia<\/td>\n2,299<\/td>\nAndalusia, Illinois City<\/td>\n<\/tr>\n
Coe<\/td>\n1,657<\/td>\nrural<\/td>\n<\/tr>\n
Edgington<\/td>\n1,508<\/td>\nEdgington, Taylor Ridge<\/td>\n<\/tr>\n
Port Byron<\/td>\n1,446<\/td>\nPort Byron, Rapids City<\/td>\n<\/tr>\n
Rural<\/td>\n988<\/td>\nrural<\/td>\n<\/tr>\n
Cordova<\/td>\n896<\/td>\nCordova<\/td>\n<\/tr>\n
Buffalo Prairie<\/td>\n824<\/td>\nBuffalo Prairie<\/td>\n<\/tr>\n
Drury<\/td>\n797<\/td>\nrural<\/td>\n<\/tr>\n
Zuma<\/td>\n757<\/td>\nrural<\/td>\n<\/tr>\n
Canoe Creek<\/td>\n711<\/td>\nrural<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

ZIP Codes<\/h2>\n