Illinois Gazetteer
Also See Columbia, IL: ZIP Codes & Maps
The City of Columbia had a population of 11,252 as of July 1, 2024.
The primary coordinate point for Columbia is located at latitude 38.4437 and longitude -90.2012 in Monroe County. The formal boundaries for the City of Columbia encompass a land area of 10.15 sq. miles and a water area of 0.05 sq. miles. Monroe County is in the Central time zone (GMT -6).
While the primary coordinates for City of Columbia are located in Monroe County, it should be noted that the formal boundaries for this community also extend into and St. Clair County.
The City of Columbia has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
The City of Columbia is located within Precinct 37 Election Precinct, a minor civil division (MCD) of Monroe County.
POPULATION | |
|---|---|
| Total Population | 11,252 (100%) |
| Population in Households | 11,180 (99.4%) |
| Population in Families | 9,498 (84.4%) |
| Population in Group Quarters1 | 72 ( 0.6%) |
| Population Density | 1,067 |
| Diversity Index2 | 17 |
INCOME | |
| Median Household Income | $112,666 |
| Average Household Income | $142,873 |
| % of Income for Mortgage4 | 16% |
| Per Capita Income | $56,918 |
| Wealth Index5 | 143 |
| Socioeconomic Status Index6 | Moderate (62.8) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 4,743 (100%) |
| Owner Occupied HU | 3,651 (77.0%) |
| Renter Occupied HU | 831 (17.5%) |
| Vacant Housing Units | 261 ( 5.5%) |
| Median Home Value | $285,524 |
| Average Home Value | $336,490 |
| Housing Affordability Index3 | 142 |
HOUSEHOLDS | |
| Total Households | 4,482 |
| Average Household Size | 2.49 |
| Family Households | 3,135 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2024 | 2024-2029 |
|---|---|---|
| Population | 0.51% | 0.35% |
| Households | 0.86% | 0.74% |
| Families | 0.65% | |
| Median Household Income | 2.04% | |
| Per Capita Income | 2.65% | |
| Owner Occupied HU | 1.30% |
The table below compares Columbia to the other 1,462 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2024 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 203 | 86th |
| Population Density | # 645 | 56th |
| Median Household Income | # 125 | 92nd |
| Housing Affordability Index | # 799 | 55th |
| Per Capita Income | # 135 | 91st |
| Diversity Index | # 906 | 38th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.
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