Jury Pool Profile
Mercer County, Ohio
- County seat
- Celina
- Judicial district
- Mercer County Court of Common Pleas
- Population (July 2025 estimate)
- 42,737
- Census PEP. The five-year ACS survey average is 42,484.
At a glance
Mercer County is a 42,737-person venue. The county population is 95% White (Census race-alone categories). Median household income is $75,311, $3,052 above the OH state median of $72,259; 21.9% of residents 25 and over hold a bachelor's degree or higher. 2.1% of residents 5 and older speak a language other than English at home, most commonly Spanish. The largest employment sector is Manufacturing, at 27.9% of covered employment, average pay $61,961/year. Trailing-12-month unemployment is 2.78%, below the 4.05% state average. The county carried the Republican presidential candidate in 2016, 2020, and 2024, taking 81% to 83% of the vote across the three.
- Population
- 42,484
- Median household income
- $76,782
- Unemployment
- 2.8%
Who sits on a jury?
≥70% White (race-alone) and <20% Black. This county: 95% / 1%.
Mercer County has a population of 42,484, with a median age of 39.4. By Census race-alone categories, White residents make up 94.9%; Black residents 1.2%. Independently, 2.2% of residents identify as Hispanic or Latino of any race.
The median household earns $75,311; 21.9% of residents 25 and over hold a bachelor's degree or higher; 8.0% live below the federal poverty line.
Economic context
Largest sector in BLS QCEW: Manufacturing, about 28% of covered jobs.
Manufacturing is the largest employment sector at 27.9% of covered employment, followed by Trade, transportation & utilities at 20.5%. Trailing-12-month unemployment is 2.78%, below the Ohio state average.
Political composition
Republican candidate carried this county in 2016, 2020, and 2024 (avg winning share: 82%). 'Strongly' threshold: ≥60% avg.
Mercer County was carried by the Republican candidate in the 2016, 2020, and 2024 cycles, with 83.0% in 2024, 81.9% in 2020, 80.7% in 2016.
Languages, households, faith & health
Family households are 67% of all households (thresholds: ≥70% = 'family-dominant'; 50–70% = 'family-majority'; <50% = 'singles/nonfamily-majority'). 2.1% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
2.1% of residents 5 years and older speak a language other than English at home. The most common are Spanish, German or other West Germanic, Vietnamese. Veterans account for 5.3% of the adult civilian population (1,688 individuals).