City in St. Louis County, Missouri · 2.6 sq mi · 2,523 people per sq mi
About 6,500 people live in Black Jack. The typical household earns $78,331, and the median resident is 42.7 years old.
2026 projection
From 6,639 in 2020
Poverty rate 5%
Men 42.8 · Women 42.5
1970–2026
6,526
2026 projection
1.7% since 2020 (decrease)
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.
1970–2026
6,526
2026 projection
1.7% since 2020 (decrease)
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 | 6,526 | -21 | 0.32% |
|---|---|---|---|
| 2025 | 6,547 | -11 | 0.17% |
| 2024 | 6,558 | +10 | 0.15% |
| 2023 | 6,548 | -13 | 0.20% |
| 2022 | 6,561 | -51 | 0.77% |
| 2021 | 6,612 | -27 | 0.41% |
| 2020 | 6,639 | -291 | 4.20% |
| 2019 | 6,930 | +2 | 0.03% |
| 2018 | 6,928 | -2 | 0.03% |
| 2017 | 6,930 | -8 | 0.12% |
Showing 10 of 21 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 66 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 20 residents
43% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 43% | 47% | 40% |
| Never married | 34% | 43% | 27% |
| Divorced | 11% | 4% | 16% |
| Widowed | 8% | 5% | 10% |
| Separated | 4% | <1% | 7% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau