Jury Pool Profile
St. Louis County, Missouri
- County seat
- Clayton
- Judicial district
- 21st Judicial Circuit Court
- Population (July 2025 estimate)
- 990,911
- Census PEP. The five-year ACS survey average is 995,569.
At a glance
St. Louis County is a 990,911-person venue. The county population is 62% White and 24% Black (Census race-alone categories). Median household income is $84,109, $12,526 above the MO state median of $71,583; 47.4% of residents 25 and over hold a bachelor's degree or higher. 10.5% of residents 5 and older speak a language other than English at home, most commonly Spanish, then other Indo-European languages (1.6%), a group the Census does not break out. The largest employment sector is Education & health services, at 23.7% of covered employment, average pay $64,366/year. Trailing-12-month unemployment is 3.97%, above the 3.85% state average. The county carried the Democratic presidential candidate in 2016, 2020, and 2024, taking 56% to 61% of the vote across the three.
- Population
- 995,569
- Median household income
- $82,936
- Unemployment
- 4.0%
Who sits on a jury?
50–70% White and ≥15% Black. This county: 62% / 24%.
St. Louis County has a population of 995,569, with a median age of 40.3. By Census race-alone categories, White residents make up 62.1%; Black residents 24.1%. Independently, 3.9% of residents identify as Hispanic or Latino of any race.
The median household earns $84,109; 47.4% of residents 25 and over hold a bachelor's degree or higher; 9.8% live below the federal poverty line.
Economic context
Largest sector in BLS QCEW: Education & health services, about 24% of covered jobs.
Education & health services is the largest employment sector at 23.7% of covered employment, followed by Trade, transportation & utilities at 19.4%. Trailing-12-month unemployment is 3.97%, above the Missouri state average.
Political composition
Democratic candidate carried this county in 2016, 2020, and 2024 (avg winning share: 59%). 'Strongly' threshold: ≥60% avg.
St. Louis County was carried by the Democratic candidate in the 2016, 2020, and 2024 cycles, with 60.8% in 2024, 61.2% in 2020, 55.8% in 2016.
Languages, households, faith & health
Family households are 62% of all households (thresholds: ≥70% = 'family-dominant'; 50–70% = 'family-majority'; <50% = 'singles/nonfamily-majority'). 10.5% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
10.5% of residents 5 years and older speak a language other than English at home. The most common are Spanish, Russian, Polish, or other Slavic, Chinese. Veterans account for 6.0% of the adult civilian population (46,673 individuals).