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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Janesville. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Janesville, Wisconsin is approximatly 59498.
Racial profile for Janesville:
| White : | 56682 |
| Black : | 748 |
| Native American : | 146 |
| Asian : | 573 |
| Pacific Islander : | 19 |
| Other : | 605 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Janesville, Wisconsin :
| 18 - 19 : | 679 |
| 20 : | 363 |
| 21 : | 323 |
| 22 - 24 : | 1154 |
| 25 - 29 : | 2125 |
| 30 - 34 : | 2357 |
| 35 - 39 : | 2410 |
| 40 - 44 : | 2412 |
| 45 - 49 : | 1999 |
| 50 - 54 : | 1724 |
| 55 - 59 : | 1351 |
| 60 - 61 : | 448 |
| 62 - 64 : | 635 |
| 65 - 66 : | 403 |
| 67 - 69 : | 571 |
| 70 - 74 : | 878 |
| 75 - 79 : | 664 |
| 80 - 84 : | 362 |
| 85+ : | 260 |
Population by age for females in Janesville, Wisconsin :
| 18 - 19 : | 684 |
| 20 : | 329 |
| 21 : | 328 |
| 22 - 24 : | 1061 |
| 25 - 29 : | 2166 |
| 30 - 34 : | 2309 |
| 35 - 39 : | 2393 |
| 40 - 44 : | 2421 |
| 45 - 49 : | 2066 |
| 50 - 54 : | 1793 |
| 55 - 59 : | 1464 |
| 60 - 61 : | 539 |
| 62 - 64 : | 714 |
| 65 - 66 : | 442 |
| 67 - 69 : | 654 |
| 70 - 74 : | 1114 |
| 75 - 79 : | 873 |
| 80 - 84 : | 714 |
| 85+ : | 733 |
The total amount of households in Janesville, Wisconsin is 23894. With 58577 people of the population in these households. The average household size is 2.45.
47095 people in Janesville, Wisconsin are part of a family. The average family size in Janesville is 2.99 people.
There are 10578 married families in Janesville, Wisconsin.
Number of married families by number of members in the family :
| 0 - 2 : | 1696 | 3 - 4 : | 1153 | 5 : | 586 | 6 - 11 : | 3650 | 12 - 17 : | 3493 |