---
type: Jurisdiction
title: "Rock Island County, IL"
classification: county
fips: "17161"
state: "IL"
demographics:
  population: 142757
  population_under_18: 32091
  population_18_64: 81605
  population_65_plus: 29061
  median_household_income: 67159
  poverty_rate: 15.5
  homeownership_rate: 69.66
  unemployment_rate: 5.6
  median_home_value: 150400
  gini_index: 0.4413
  vacancy_rate: 7.53
  race_white: 102074
  race_black: 16270
  race_asian: 3943
  race_native: 555
  hispanic: 20305
  bachelors_plus: 33089
sources:
  - field: demographics
    source: Census ACS 2023
confidence: official
tags: [jurisdiction, county, il]
timestamp: "2026-07-03"
---

# Rock Island County, IL

County jurisdiction.

## Demographics (ACS 2023)

| Measure | Value |
| --- | --- |
| Population | 142757 |
| Under 18 | 32091 |
| 18–64 | 81605 |
| 65+ | 29061 |
| Median household income | 67159 |
| Poverty rate | 15.5 |
| Homeownership rate | 69.66 |
| Unemployment rate | 5.6 |
| Median home value | 150400 |
| Gini index | 0.4413 |
| Vacancy rate | 7.53 |
| White | 102074 |
| Black | 16270 |
| Asian | 3943 |
| Native | 555 |
| Hispanic/Latino | 20305 |
| Bachelor's or higher | 33089 |

## Source

- demographics: Census ACS 2023