Rock Island Population

2010–2026

1,858

2026 projection

44.1% since 2020 (increase)

05001K1.5K2K201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Rock Island. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20261,858+1055.99%
20251,753+432.51%
20241,710+915.62%
20231,619+15010.21%
20221,469+1108.09%
20211,359+705.43%
20201,289+342.71%
20191,255+776.54%
20181,178+292.52%
20171,149+595.41%

Showing 10 of 17 years.

Rock Island Demographics

37.8median age

Median age

Female35.5 yrs
Male40.4 yrs

Adults

899
188 seniors · 21%711 other adults

Sex

Female 53.9% · 674Male 46.1% · 577

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 13 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Rock Island Income

$69,861median household income

Median household income

$69,861

Half of households earn more, half earn less

Median earnings

$38,205

Typical yearly pay for a worker 25 or older.

Poverty rate

10.3%

About 1 in 10 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Rock Island Marital Status

52% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married52%55%50%
Never married27%25%29%
Divorced15%17%14%
Widowed4%4%4%
Separated2%0%3%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201