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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Monticello. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Monticello, Illinois is approximatly 5138.
Racial profile for Monticello:
| White : | 5087 |
| Black : | 4 |
| Native American : | 7 |
| Asian : | 7 |
| Pacific Islander : | 1 |
| Other : | 4 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Monticello, Illinois :
| 18 - 19 : | 65 |
| 20 : | 24 |
| 21 : | 16 |
| 22 - 24 : | 59 |
| 25 - 29 : | 115 |
| 30 - 34 : | 144 |
| 35 - 39 : | 169 |
| 40 - 44 : | 219 |
| 45 - 49 : | 180 |
| 50 - 54 : | 169 |
| 55 - 59 : | 131 |
| 60 - 61 : | 50 |
| 62 - 64 : | 76 |
| 65 - 66 : | 46 |
| 67 - 69 : | 60 |
| 70 - 74 : | 116 |
| 75 - 79 : | 64 |
| 80 - 84 : | 48 |
| 85+ : | 36 |
Population by age for females in Monticello, Illinois :
| 18 - 19 : | 54 |
| 20 : | 15 |
| 21 : | 23 |
| 22 - 24 : | 55 |
| 25 - 29 : | 129 |
| 30 - 34 : | 142 |
| 35 - 39 : | 216 |
| 40 - 44 : | 221 |
| 45 - 49 : | 173 |
| 50 - 54 : | 179 |
| 55 - 59 : | 157 |
| 60 - 61 : | 53 |
| 62 - 64 : | 80 |
| 65 - 66 : | 55 |
| 67 - 69 : | 82 |
| 70 - 74 : | 117 |
| 75 - 79 : | 144 |
| 80 - 84 : | 113 |
| 85+ : | 140 |
The total amount of households in Monticello, Illinois is 2146. With 5025 people of the population in these households. The average household size is 2.34.
4209 people in Monticello, Illinois are part of a family. The average family size in Monticello is 2.91 people.
There are 979 married families in Monticello, Illinois.
Number of married families by number of members in the family :
| 0 - 2 : | 134 | 3 - 4 : | 124 | 5 : | 63 | 6 - 11 : | 305 | 12 - 17 : | 353 |