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Rock Island County, Illinois

Rock Island County, Illinois · ZIP 61201, 61232, 61236

  • Census data · ACS 2019-2023
Browse the 42 townsFind my townSponsor a town here
  • 142,731 (2024 estimate)Population
  • 61,192Households
  • $66,768Median household income
  • $144,700Median home value
  • 42Towns with a page
  • 20ZIP codes

Rock Island County in numbersOfficial sources, refreshed yearly

Population, 2000 to 2020−3.1%
144k146k148k150k2000: 149,37420002010: 147,54620102020: 144,6722020149,374144,672
Population of Rock Island County at each census
CensusPopulation
2000149,374
2010147,546
2020144,672

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, county level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 17, retrieved November 14, 2026.

Household income in Rock Island County
Under $50k38.8%
$50k to $100k30.7%
$100k to $150k17.4%
$150k to $200k7.8%
$200k and over5.3%

Median household income $66,768 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 17, retrieved November 14, 2026.

Housing tenure in Rock Island County
Owner occupied
41,997 units
Renter occupied
19,195 units
Vacancy rate
8.3%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, county level, state 17, retrieved November 14, 2026.

Jobs by sector in Rock Island County2023
Health care and social assistance10,280
Manufacturing8,382
Retail trade7,001
Accommodation and food services6,051
Management of companies and enterprises5,942
Transportation and warehousing5,796
Professional, scientific, and technical services3,437
Finance and insurance3,184

64,307 employees in 2,992 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.

Source: County Business Patterns 2023: employment by sector, county level, state 17, retrieved November 14, 2026.

Rock Island County compared with its state
Rock Island County compared with its state, American Community Survey 2019-2023
MeasureRock Island CountyIllinois
Population142,99512,692,653
Median household income$66,768$81,702
Median age40.338.9
Median home value$144,700$250,500
Bachelor’s degree or higher24.1%37.2%
Foreign-born residents8.2%14.4%
Owner-occupied homes68.6%66.8%
Mean commute to work20.2 minutes28.1 minutes

Source: American Community Survey 5-year data profile 2019–2023, county level, state 17, retrieved November 14, 2026.

Townships, towns and villages in Rock Island County42 with a page · sort by any column

Type
MolineCity42,44216.8 sq mi
Rock IslandCity36,43417.5 sq mi
South Moline TownshipTownship36,15015.9 sq mi
Moline TownshipTownship22,5706.45 sq mi
Hampton TownshipTownship21,54934.2 sq mi
East MolineCity20,99514.6 sq mi
South Rock Island TownshipTownship18,1146.89 sq mi
Rock Island TownshipTownship15,7864.78 sq mi
Blackhawk TownshipTownship9,43328.0 sq mi
SilvisCity8,0034.28 sq mi
MilanVillage5,0336.26 sq mi
Coal Valley TownshipTownship4,45711.8 sq mi
Coal ValleyVillage3,8833.17 sq mi
Bowling TownshipTownship3,34036.9 sq mi
Andalusia TownshipTownship2,23812.8 sq mi
Carbon CliffVillage1,8082.10 sq mi
Coe TownshipTownship1,76335.9 sq mi
HamptonVillage1,7551.46 sq mi
Port ByronVillage1,6432.43 sq mi
Edgington TownshipTownship1,40835.7 sq mi
Port Byron TownshipTownship1,3683.54 sq mi
AndalusiaVillage1,1671.17 sq mi
Rural TownshipTownship99836.2 sq mi
Rapids CityVillage9351.63 sq mi
Coyne CenterCensus designated place9061.72 sq mi
Cordova TownshipTownship84824.7 sq mi
Drury TownshipTownship75149.4 sq mi
Buffalo Prairie TownshipTownship70446.1 sq mi
Zuma TownshipTownship66723.8 sq mi
CordovaVillage6630.57 sq mi
Canoe Creek TownshipTownship58714.4 sq mi
ReynoldsVillage4880.37 sq mi
Oak GroveVillage4700.66 sq mi
EdgingtonCensus designated place4531.01 sq mi
HillsdaleVillage4130.65 sq mi
Rock Island ArsenalCensus designated place3721.57 sq mi
Taylor RidgeCensus designated place2371.55 sq mi
Campbell's IslandCensus designated place2110.45 sq mi
JoslinCensus designated place444.64 sq mi
BarstowCensus designated place430.10 sq mi
Illinois CityCensus designated place180.46 sq mi
Buffalo PrairieCensus designated place03.76 sq mi

Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 17 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.

County officialsFrom public records

No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.

Across Rock Island County

Jobs across Rock Island County

No job is posted in Rock Island County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.

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Events in the next 31 days

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Neighboring counties

Neighboring counties

Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 19, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 17, retrieved November 14, 2026.