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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Mchenry. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Mchenry, Illinois is approximatly 21501.
Racial profile for Mchenry:
| White : | 20250 |
| Black : | 75 |
| Native American : | 45 |
| Asian : | 192 |
| Pacific Islander : | 8 |
| Other : | 711 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Mchenry, Illinois :
| 18 - 19 : | 246 |
| 20 : | 111 |
| 21 : | 120 |
| 22 - 24 : | 377 |
| 25 - 29 : | 745 |
| 30 - 34 : | 852 |
| 35 - 39 : | 972 |
| 40 - 44 : | 943 |
| 45 - 49 : | 796 |
| 50 - 54 : | 595 |
| 55 - 59 : | 435 |
| 60 - 61 : | 143 |
| 62 - 64 : | 155 |
| 65 - 66 : | 78 |
| 67 - 69 : | 121 |
| 70 - 74 : | 225 |
| 75 - 79 : | 205 |
| 80 - 84 : | 136 |
| 85+ : | 75 |
Population by age for females in Mchenry, Illinois :
| 18 - 19 : | 264 |
| 20 : | 118 |
| 21 : | 98 |
| 22 - 24 : | 344 |
| 25 - 29 : | 730 |
| 30 - 34 : | 884 |
| 35 - 39 : | 959 |
| 40 - 44 : | 954 |
| 45 - 49 : | 750 |
| 50 - 54 : | 637 |
| 55 - 59 : | 428 |
| 60 - 61 : | 133 |
| 62 - 64 : | 208 |
| 65 - 66 : | 115 |
| 67 - 69 : | 201 |
| 70 - 74 : | 336 |
| 75 - 79 : | 341 |
| 80 - 84 : | 255 |
| 85+ : | 279 |
The total amount of households in Mchenry, Illinois is 7872. With 21281 people of the population in these households. The average household size is 2.70.
18070 people in Mchenry, Illinois are part of a family. The average family size in Mchenry is 3.25 people.
There are 4853 married families in Mchenry, Illinois.
Number of married families by number of members in the family :
| 0 - 2 : | 725 | 3 - 4 : | 552 | 5 : | 270 | 6 - 11 : | 1717 | 12 - 17 : | 1589 |