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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Chatham. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Chatham, Illinois is approximatly 8583.
Racial profile for Chatham:
| White : | 8367 |
| Black : | 66 |
| Native American : | 13 |
| Asian : | 77 |
| Pacific Islander : | 0 |
| Other : | 13 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Chatham, Illinois :
| 18 - 19 : | 104 |
| 20 : | 39 |
| 21 : | 40 |
| 22 - 24 : | 102 |
| 25 - 29 : | 184 |
| 30 - 34 : | 261 |
| 35 - 39 : | 385 |
| 40 - 44 : | 427 |
| 45 - 49 : | 392 |
| 50 - 54 : | 277 |
| 55 - 59 : | 141 |
| 60 - 61 : | 57 |
| 62 - 64 : | 87 |
| 65 - 66 : | 43 |
| 67 - 69 : | 49 |
| 70 - 74 : | 75 |
| 75 - 79 : | 52 |
| 80 - 84 : | 39 |
| 85+ : | 20 |
Population by age for females in Chatham, Illinois :
| 18 - 19 : | 100 |
| 20 : | 31 |
| 21 : | 29 |
| 22 - 24 : | 111 |
| 25 - 29 : | 204 |
| 30 - 34 : | 334 |
| 35 - 39 : | 476 |
| 40 - 44 : | 452 |
| 45 - 49 : | 394 |
| 50 - 54 : | 274 |
| 55 - 59 : | 170 |
| 60 - 61 : | 62 |
| 62 - 64 : | 84 |
| 65 - 66 : | 42 |
| 67 - 69 : | 54 |
| 70 - 74 : | 84 |
| 75 - 79 : | 64 |
| 80 - 84 : | 57 |
| 85+ : | 41 |
The total amount of households in Chatham, Illinois is 3083. With 8573 people of the population in these households. The average household size is 2.78.
7725 people in Chatham, Illinois are part of a family. The average family size in Chatham is 3.13 people.
There are 2110 married families in Chatham, Illinois.
Number of married families by number of members in the family :
| 0 - 2 : | 291 | 3 - 4 : | 182 | 5 : | 106 | 6 - 11 : | 743 | 12 - 17 : | 788 |