Jury Pool Profile
Jefferson County, Iowa
- County seat
- Fairfield
- Judicial district
- 8th Judicial District Court
- Population (July 2025 estimate)
- 15,291
- Census PEP. The five-year ACS survey average is 15,705.
At a glance
Jefferson County is a 15,291-person venue. The county population is 84% White (Census race-alone categories). Median household income is $63,788, $11,835 below the IA state median of $75,623; 43.2% of residents 25 and over hold a bachelor's degree or higher. The largest published sector is Trade, transportation & utilities, at 17.9% of covered employment, average pay $51,721/year. Trailing-12-month unemployment is 3.25%, below the 3.34% state average. The county carried the Republican presidential candidate in 2016, 2020, and 2024, taking 47% to 52% of the vote across the three.
- Population
- 15,705
- Median household income
- $61,620
- Unemployment
- 3.3%
Who sits on a jury?
≥70% White (race-alone) and <20% Black. This county: 84% / 3%.
Jefferson County has a population of 15,705, with a median age of 43.7. By Census race-alone categories, White residents make up 84.4%; Black residents 2.5%. Independently, 4.1% of residents identify as Hispanic or Latino of any race.
The median household earns $63,788; 43.2% of residents 25 and over hold a bachelor's degree or higher; 14.0% live below the federal poverty line.
Economic context
Largest sector in BLS QCEW, with cells BLS withholds estimated from Census County Business Patterns (private jobs) and the statewide public-sector mix: Education & health services, about 28% of covered jobs.
Trade, transportation & utilities is the largest published sector at 17.9% of covered employment, followed by Education & health services at 15.4%. Trailing-12-month unemployment is 3.25%, below the Iowa state average.
Political composition
Republican candidate carried this county in 2016, 2020, and 2024 (avg winning share: 50%). 'Strongly' threshold: ≥60% avg.
Jefferson County was carried by the Republican candidate in the 2016, 2020, and 2024 cycles, with 52.3% in 2024, 49.6% in 2020, 46.7% in 2016.
Languages, households, faith & health
Family households are 54% of all households (thresholds: ≥70% = 'family-dominant'; 50–70% = 'family-majority'; <50% = 'singles/nonfamily-majority'). 15.9% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
15.9% of residents 5 years and older speak a language other than English at home. The most common are Vietnamese, Spanish, Arabic. Veterans account for 7.7% of the adult civilian population (1,005 individuals).