City in St. Clair County, Illinois · 9.6 sq mi · 967 people per sq mi
About 9,300 people live in Mascoutah. The typical household earns $97,375, and the median resident is 37.5 years old.
2026 projection
From 8,779 in 2020
Poverty rate 9.78%
Men 37.3 · Women 37.9
1860–2026
9,322
2026 projection
6.2% 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.
1860–2026
9,322
2026 projection
6.2% 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 | 9,322 | +83 | 0.90% |
|---|---|---|---|
| 2025 | 9,239 | +127 | 1.39% |
| 2024 | 9,112 | +137 | 1.53% |
| 2023 | 8,975 | +308 | 3.55% |
| 2022 | 8,667 | -59 | 0.68% |
| 2021 | 8,726 | -53 | 0.60% |
| 2020 | 8,779 | +671 | 8.28% |
| 2019 | 8,108 | -44 | 0.54% |
| 2018 | 8,152 | +23 | 0.28% |
| 2017 | 8,129 | +20 | 0.25% |
Showing 10 of 32 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 88 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 10 residents
54% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 54% | 55% | 53% |
| Never married | 28% | 28% | 28% |
| Divorced | 9% | 10% | 9% |
| Widowed | 6% | 4% | 7% |
| Separated | 3% | 4% | 3% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau