City in Macoupin County, Illinois · 1.2 sq mi · 1,665 people per sq mi
About 1,900 people live in Mount Olive. The typical household earns $55,625, and the median resident is 50.4 years old.
2026 projection
From 2,012 in 2020
Poverty rate 17.84%
Men 49.6 · Women 52.1
2010–2026
1,920
2026 projection
4.6% 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.
2010–2026
1,920
2026 projection
4.6% 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 | 1,920 | -16 | 0.83% |
|---|---|---|---|
| 2025 | 1,936 | -13 | 0.67% |
| 2024 | 1,949 | -10 | 0.51% |
| 2023 | 1,959 | -9 | 0.46% |
| 2022 | 1,968 | -21 | 1.06% |
| 2021 | 1,989 | -23 | 1.14% |
| 2020 | 2,012 | +72 | 3.71% |
| 2019 | 1,940 | -19 | 0.97% |
| 2018 | 1,959 | -13 | 0.66% |
| 2017 | 1,972 | -13 | 0.65% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 19 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 6 residents
45% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 45% | 46% | 44% |
| Never married | 28% | 31% | 24% |
| Divorced | 21% | 17% | 25% |
| Widowed | 6% | 5% | 7% |
| Separated | <1% | 2% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau