Jury Pool Profile
Plymouth County, Iowa
- County seat
- Le Mars
- Judicial district
- 3rd Judicial District Court
- Population (July 2025 estimate)
- 25,697
- Census PEP. The five-year ACS survey average is 25,747.
At a glance
Plymouth County is a 25,697-person venue. The county population is 89% White (Census race-alone categories). Median household income is $88,903, $13,280 above the IA state median of $75,623; 21.7% of residents 25 and over hold a bachelor's degree or higher. 6.9% of residents 5 and older speak a language other than English at home, most commonly Spanish, then other and unspecified languages (1.5%), a group the Census does not break out. The largest employment sector is Manufacturing, at 25.9% of covered employment, average pay $79,387/year. Trailing-12-month unemployment is 2.49%, below the 3.34% state average. The county carried the Republican presidential candidate in 2016, 2020, and 2024, taking 74% to 76% of the vote across the three.
- Population
- 25,747
- Median household income
- $83,251
- Unemployment
- 2.5%
Who sits on a jury?
≥70% White (race-alone) and <20% Black. This county: 89% / 2%.
Plymouth County has a population of 25,747, with a median age of 41.3. By Census race-alone categories, White residents make up 89.4%; Black residents 2.4%. Independently, 6.4% of residents identify as Hispanic or Latino of any race.
The median household earns $88,903; 21.7% of residents 25 and over hold a bachelor's degree or higher; 7.6% live below the federal poverty line.
Economic context
Largest sector in BLS QCEW: Manufacturing, 3,018 jobs; Trade, transportation & utilities, 2,705, is within 20% of it.
Manufacturing is the largest employment sector at 25.9% of covered employment, followed by Trade, transportation & utilities at 23.2%. Trailing-12-month unemployment is 2.49%, below the Iowa state average.
Political composition
Republican candidate carried this county in 2016, 2020, and 2024 (avg winning share: 75%). 'Strongly' threshold: ≥60% avg.
Plymouth County was carried by the Republican candidate in the 2016, 2020, and 2024 cycles, with 76.5% in 2024, 73.9% in 2020, 74.0% in 2016.
Languages, households, faith & health
Family households are 69% of all households (thresholds: ≥70% = 'family-dominant'; 50–70% = 'family-majority'; <50% = 'singles/nonfamily-majority'). 6.9% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
6.9% of residents 5 years and older speak a language other than English at home. The most common are Spanish, German or other West Germanic, Russian, Polish, or other Slavic. Veterans account for 6.9% of the adult civilian population (1,334 individuals).