Jury Pool Profile
Marion County, Illinois
- County seat
- Salem
- Judicial district
- 4th Judicial Circuit Court
- Population (July 2025 estimate)
- 36,382
- Census PEP. The five-year ACS survey average is 37,000.
At a glance
Marion County is a 36,382-person venue. The county population is 90% White (Census race-alone categories). Median household income is $61,813, $21,514 below the IL state median of $83,327; 16.8% of residents 25 and over hold a bachelor's degree or higher. 2.5% of residents 5 and older speak a language other than English at home, most commonly Spanish. The largest employment sector is Education & health services, at 35.1% of covered employment, average pay $50,100/year. Trailing-12-month unemployment is 5.04%, above the 4.85% state average. The county carried the Republican presidential candidate in 2016, 2020, and 2024, taking 70% to 74% of the vote across the three.
- Population
- 37,000
- Median household income
- $61,240
- Unemployment
- 5.0%
Who sits on a jury?
≥70% White (race-alone) and <20% Black. This county: 90% / 3%.
Marion County has a population of 37,000, with a median age of 41.5. By Census race-alone categories, White residents make up 89.9%; Black residents 3.0%. Independently, 2.2% of residents identify as Hispanic or Latino of any race.
The median household earns $61,813; 16.8% of residents 25 and over hold a bachelor's degree or higher; 14.4% live below the federal poverty line.
Economic context
Largest sector in BLS QCEW, even counting every withheld job toward the other sectors: Education & health services, about 35% of covered jobs.
Education & health services is the largest employment sector at 35.1% of covered employment, followed by Manufacturing at 21.3%. Trailing-12-month unemployment is 5.04%, above the Illinois state average.
Political composition
Republican candidate carried this county in 2016, 2020, and 2024 (avg winning share: 72%). 'Strongly' threshold: ≥60% avg.
Marion County was carried by the Republican candidate in the 2016, 2020, and 2024 cycles, with 74.1% in 2024, 72.5% in 2020, 70.3% in 2016.
Languages, households, faith & health
Family households are 61% of all households (thresholds: ≥70% = 'family-dominant'; 50–70% = 'family-majority'; <50% = 'singles/nonfamily-majority'). 2.5% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
2.5% of residents 5 years and older speak a language other than English at home. The most common are Spanish, Russian, Polish, or other Slavic, Tagalog. Veterans account for 7.8% of the adult civilian population (2,199 individuals).