Jury Pool Profile
Rock Island County, Illinois
- County seat
- Rock Island
- Judicial district
- 14th Judicial Circuit Court
- Population (July 2025 estimate)
- 141,869
- Census PEP. The five-year ACS survey average is 142,757.
At a glance
Rock Island County is a 141,869-person venue. The county population is 72% White and 11% Black (Census race-alone categories). 14% identify as Hispanic or Latino of any race. Median household income is $67,335, $15,992 below the IL state median of $83,327; 24.7% of residents 25 and over hold a bachelor's degree or higher. 13.8% of residents 5 and older speak a language other than English at home, most commonly Spanish, then other and unspecified languages (1.8%), a group the Census does not break out. The largest employment sector is Trade, transportation & utilities, at 24.2% of covered employment, average pay $99,590/year. Trailing-12-month unemployment is 5.24%, above the 4.85% state average. The county carried the Democratic presidential candidate in 2016, 2020, and 2024, taking 51% to 55% of the vote across the three.
- Population
- 142,757
- Median household income
- $67,159
- Unemployment
- 5.2%
Who sits on a jury?
≥70% White (race-alone) and <20% Black. This county: 72% / 11%.
Rock Island County has a population of 142,757, with a median age of 40.3. By Census race-alone categories, White residents make up 71.5%; Black residents 11.4%. Independently, 14.2% of residents identify as Hispanic or Latino of any race.
The median household earns $67,335; 24.7% of residents 25 and over hold a bachelor's degree or higher; 12.6% live below the federal poverty line.
Economic context
Largest sector in BLS QCEW: Trade, transportation & utilities, 16,702 jobs; Education & health services, 14,388, is within 20% of it.
Trade, transportation & utilities is the largest employment sector at 24.2% of covered employment, followed by Education & health services at 20.8%. Trailing-12-month unemployment is 5.24%, above the Illinois state average.
Political composition
Democratic candidate carried this county in 2016, 2020, and 2024 (avg winning share: 53%). 'Strongly' threshold: ≥60% avg.
Rock Island County was carried by the Democratic candidate in the 2016, 2020, and 2024 cycles, with 53.9% in 2024, 54.9% in 2020, 51.2% in 2016.
Languages, households, faith & health
Family households are 60% of all households (thresholds: ≥70% = 'family-dominant'; 50–70% = 'family-majority'; <50% = 'singles/nonfamily-majority'). 13.8% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
13.8% of residents 5 years and older speak a language other than English at home. The most common are Spanish, French, Haitian, or Cajun, German or other West Germanic. Veterans account for 7.1% of the adult civilian population (7,839 individuals).