Jury Pool Profile
Mason County, Illinois
- County seat
- Havana
- Judicial district
- 8th Judicial Circuit Court
- Population (July 2025 estimate)
- 12,411
- Census PEP. The five-year ACS survey average is 12,745.
At a glance
Mason County is a 12,411-person venue. The county population is 95% White (Census race-alone categories). Median household income is $64,300, $19,027 below the IL state median of $83,327; 17.1% of residents 25 and over hold a bachelor's degree or higher. 2.2% 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 38.9% of covered employment, average pay $41,105/year. Trailing-12-month unemployment is 4.95%, above the 4.85% state average. The county carried the Republican presidential candidate in 2016, 2020, and 2024, taking 63% to 70% of the vote across the three.
- Population
- 12,745
- Median household income
- $62,845
- Unemployment
- 5.0%
Who sits on a jury?
≥70% White (race-alone) and <20% Black. This county: 95% / 1%.
Mason County has a population of 12,745, with a median age of 45.4. By Census race-alone categories, White residents make up 94.6%; Black residents 0.8%. Independently, 1.6% of residents identify as Hispanic or Latino of any race.
The median household earns $64,300; 17.1% of residents 25 and over hold a bachelor's degree or higher; 13.5% 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 39% of covered jobs.
Education & health services is the largest employment sector at 38.9% of covered employment, followed by Trade, transportation & utilities at 22.7%. Trailing-12-month unemployment is 4.95%, above the Illinois state average.
Political composition
Republican candidate carried this county in 2016, 2020, and 2024 (avg winning share: 67%). 'Strongly' threshold: ≥60% avg.
Mason County was carried by the Republican candidate in the 2016, 2020, and 2024 cycles, with 70.1% in 2024, 68.8% in 2020, 63.0% 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'). 2.2% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
2.2% 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 8.3% of the adult civilian population (835 individuals).