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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Columbia. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Columbia, Illinois is approximatly 7922.
Racial profile for Columbia:
| White : | 7805 |
| Black : | 8 |
| Native American : | 15 |
| Asian : | 27 |
| Pacific Islander : | 0 |
| Other : | 16 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Columbia, Illinois :
| 18 - 19 : | 86 |
| 20 : | 31 |
| 21 : | 25 |
| 22 - 24 : | 117 |
| 25 - 29 : | 222 |
| 30 - 34 : | 272 |
| 35 - 39 : | 341 |
| 40 - 44 : | 378 |
| 45 - 49 : | 317 |
| 50 - 54 : | 199 |
| 55 - 59 : | 168 |
| 60 - 61 : | 59 |
| 62 - 64 : | 80 |
| 65 - 66 : | 55 |
| 67 - 69 : | 72 |
| 70 - 74 : | 150 |
| 75 - 79 : | 91 |
| 80 - 84 : | 66 |
| 85+ : | 28 |
Population by age for females in Columbia, Illinois :
| 18 - 19 : | 86 |
| 20 : | 26 |
| 21 : | 26 |
| 22 - 24 : | 93 |
| 25 - 29 : | 252 |
| 30 - 34 : | 308 |
| 35 - 39 : | 375 |
| 40 - 44 : | 391 |
| 45 - 49 : | 259 |
| 50 - 54 : | 219 |
| 55 - 59 : | 164 |
| 60 - 61 : | 69 |
| 62 - 64 : | 100 |
| 65 - 66 : | 71 |
| 67 - 69 : | 112 |
| 70 - 74 : | 166 |
| 75 - 79 : | 147 |
| 80 - 84 : | 113 |
| 85+ : | 133 |
The total amount of households in Columbia, Illinois is 3112. With 7790 people of the population in these households. The average household size is 2.50.
6682 people in Columbia, Illinois are part of a family. The average family size in Columbia is 3.01 people.
There are 1702 married families in Columbia, Illinois.
Number of married families by number of members in the family :
| 0 - 2 : | 270 | 3 - 4 : | 186 | 5 : | 94 | 6 - 11 : | 576 | 12 - 17 : | 576 |