Jury Pool Profile
Seneca County, Ohio
- County seat
- Tiffin
- Judicial district
- Seneca County Court of Common Pleas
- Population (July 2025 estimate)
- 54,522
- Census PEP. The five-year ACS survey average is 54,770.
At a glance
Seneca County is a 54,522-person venue. The county population is 90% White (Census race-alone categories). Median household income is $65,260, $6,999 below the OH state median of $72,259; 20.6% of residents 25 and over hold a bachelor's degree or higher. 2.6% 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 25.4% of covered employment, average pay $49,794/year. Trailing-12-month unemployment is 4.03%, below the 4.05% state average. The county carried the Republican presidential candidate in 2016, 2020, and 2024, taking 62% to 68% of the vote across the three.
- Population
- 54,770
- Median household income
- $66,025
- Unemployment
- 4.0%
Who sits on a jury?
≥70% White (race-alone) and <20% Black. This county: 90% / 2%.
Seneca County has a population of 54,770, with a median age of 40.2. By Census race-alone categories, White residents make up 89.6%; Black residents 2.5%. Independently, 5.7% of residents identify as Hispanic or Latino of any race.
The median household earns $65,260; 20.6% of residents 25 and over hold a bachelor's degree or higher; 13.0% live below the federal poverty line.
Economic context
Largest sector in BLS QCEW: Education & health services, 4,751 jobs; Manufacturing, 4,355, is within 20% of it.
Education & health services is the largest employment sector at 25.4% of covered employment, followed by Manufacturing at 23.3%. Trailing-12-month unemployment is 4.03%, below the Ohio state average.
Political composition
Republican candidate carried this county in 2016, 2020, and 2024 (avg winning share: 65%). 'Strongly' threshold: ≥60% avg.
Seneca County was carried by the Republican candidate in the 2016, 2020, and 2024 cycles, with 68.2% in 2024, 66.2% in 2020, 62.0% in 2016.
Languages, households, faith & health
Family households are 63% of all households (thresholds: ≥70% = 'family-dominant'; 50–70% = 'family-majority'; <50% = 'singles/nonfamily-majority'). 2.6% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
2.6% of residents 5 years and older speak a language other than English at home. The most common are Spanish, Korean, German or other West Germanic. Veterans account for 6.8% of the adult civilian population (2,912 individuals).