City in Monroe County, Illinois · 10.6 sq mi · 1,028 people per sq mi
About 11,000 people live in Columbia. The typical household earns $107,606, and the median resident is 42.4 years old.
2026 projection
From 11,039 in 2020
Poverty rate 5.38%
Men 42.2 · Women 42.5
1850–2026
10,845
2026 projection
1.8% 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.
1850–2026
10,845
2026 projection
1.8% 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 | 10,845 | -20 | 0.18% |
|---|---|---|---|
| 2025 | 10,865 | -95 | 0.87% |
| 2024 | 10,960 | -47 | 0.43% |
| 2023 | 11,007 | +1 | 0.01% |
| 2022 | 11,006 | +2 | 0.02% |
| 2021 | 11,004 | -35 | 0.32% |
| 2020 | 11,039 | +512 | 4.86% |
| 2019 | 10,527 | +93 | 0.89% |
| 2018 | 10,434 | +112 | 1.09% |
| 2017 | 10,322 | +68 | 0.66% |
Showing 10 of 33 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 111 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 19 residents
63% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 63% | 65% | 61% |
| Never married | 22% | 24% | 20% |
| Divorced | 10% | 9% | 10% |
| Widowed | 5% | 2% | 9% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau