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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Peru. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Peru, Illinois is approximatly 9835.
Racial profile for Peru:
| White : | 9488 |
| Black : | 31 |
| Native American : | 18 |
| Asian : | 109 |
| Pacific Islander : | 1 |
| Other : | 114 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Peru, Illinois :
| 18 - 19 : | 127 |
| 20 : | 66 |
| 21 : | 36 |
| 22 - 24 : | 140 |
| 25 - 29 : | 274 |
| 30 - 34 : | 304 |
| 35 - 39 : | 354 |
| 40 - 44 : | 422 |
| 45 - 49 : | 351 |
| 50 - 54 : | 283 |
| 55 - 59 : | 221 |
| 60 - 61 : | 62 |
| 62 - 64 : | 119 |
| 65 - 66 : | 83 |
| 67 - 69 : | 127 |
| 70 - 74 : | 225 |
| 75 - 79 : | 194 |
| 80 - 84 : | 126 |
| 85+ : | 76 |
Population by age for females in Peru, Illinois :
| 18 - 19 : | 133 |
| 20 : | 56 |
| 21 : | 42 |
| 22 - 24 : | 137 |
| 25 - 29 : | 274 |
| 30 - 34 : | 294 |
| 35 - 39 : | 366 |
| 40 - 44 : | 399 |
| 45 - 49 : | 333 |
| 50 - 54 : | 296 |
| 55 - 59 : | 253 |
| 60 - 61 : | 88 |
| 62 - 64 : | 145 |
| 65 - 66 : | 100 |
| 67 - 69 : | 158 |
| 70 - 74 : | 294 |
| 75 - 79 : | 274 |
| 80 - 84 : | 188 |
| 85+ : | 255 |
The total amount of households in Peru, Illinois is 4143. With 9657 people of the population in these households. The average household size is 2.33.
7846 people in Peru, Illinois are part of a family. The average family size in Peru is 2.93 people.
There are 1664 married families in Peru, Illinois.
Number of married families by number of members in the family :
| 0 - 2 : | 234 | 3 - 4 : | 158 | 5 : | 91 | 6 - 11 : | 560 | 12 - 17 : | 621 |