City in St. Louis County, Missouri · 3.7 sq mi · 3,514 people per sq mi
About 13,000 people live in Jennings. The typical household earns $38,984, and the median resident is 39.4 years old.
2026 projection
From 12,901 in 2020
Poverty rate 25.16%
Men 33.9 · Women 45.2
1950–2026
13,120
2026 projection
1.7% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1950–2026
13,120
2026 projection
1.7% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 13,120 | +27 | 0.21% |
|---|---|---|---|
| 2025 | 13,093 | +82 | 0.63% |
| 2024 | 13,011 | +137 | 1.06% |
| 2023 | 12,874 | +34 | 0.26% |
| 2022 | 12,840 | -53 | 0.41% |
| 2021 | 12,893 | -8 | 0.06% |
| 2020 | 12,901 | -1,692 | 11.59% |
| 2019 | 14,593 | -51 | 0.35% |
| 2018 | 14,644 | -75 | 0.51% |
| 2017 | 14,719 | -73 | 0.49% |
Showing 10 of 23 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 129 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 4 residents
19% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 19% | 25% | 15% |
| Never married | 49% | 52% | 47% |
| Divorced | 20% | 18% | 21% |
| Widowed | 10% | 4% | 13% |
| Separated | 3% | 2% | 4% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau