Rock Island County, IL | Data USA
https://datausa.io/profile/geo/rock-island-county-il/
WebAbout. In 2021, Rock Island County, IL had a population of 145k people with a median age of 40.1 and a median household income of $58,974. Between 2020 and 2021 the population of Rock Island County, IL grew from 142,801 to 144,694, a 1.33% increase and its median household income grew from $55,980 to $58,974, a 5.35% increase.
DA: 34 PA: 47 MOZ Rank: 63