Janesville, WI Population

Overview

65,506

Total Population

39.7

Median age

51.12%

Female population %

95.6:100

Gender ratio (M:F)

10-14 years

Largest age group

54.6

Total dependency ratio

White

Largest racial group

3,747

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Janesville's population is old compared to the rest of the country:

The median age in Janesville is 39.7, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Janesville's population under 18 was 22.82%, compared to the 22.51% nationwide.
Janesville's elderly or the senior population (over 65 age) was 16.64% as compared to 16.04% nationwide.
Of the total population in Janesville, 18.68% were under the age of 15, 18.53% aged 15 to 29, 46.16% aged 30 to 64, 14.26% aged 65 to 84, and 2.38% were 85 years of age and older.

There are 1,472 more females than males in Janesville:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.12% females and 48.88% males in Janesville, WI.
The Janesville, WI gender ratio is 95.6:100 i.e. 95.6 men to 100 women (0.956).
For male population, the largest age group is 10-14 years with a population of 2,404.
For the female population, the largest age group is 35-39 years with a population of 2,405.

Janesville's population has become increasingly diverse:

Racial distribution of Janesville population: 89.03% are White, 2.99% are Black or African American, 0.15% are American Indian and Alaska Native, 1.67% are Asian, 0.01% are Native Hawaiian and other Pacific Islander, 2.53% are some other race and 3.63% are multiracial.
Janesville's racial breakdown clearly shows that there is an absolute majority of White population in the city.
By ethnicity, 3,747 is Hispanic or Latino (of any race), and 61,759 (94.28% of the total population) is Non-Hispanic.
The largest racial group in Janesville is White with a population of 58,318 (89.03% of the total population).

Janesville's population has not reached its peak yet and is showing a trend of further growth:

The peak population was 65,911 in the year 2022
From 2000 to 2010, Janesville's population increased by 3,220 (5.33%), as compared to the national growth of 9.63%.
From 2010 to 2020, Janesville's population increased by 2,035 (3.20%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Janesville's population was lowest in year 2000 at 60,412.