Waukesha County, WI Population

Overview

405,332

Total Population

43.0

Median age

50.46%

Female population %

98.2:100

Gender ratio (M:F)

55-59 years

Largest age group

56.2

Total dependency ratio

White

Largest racial group

20,503

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Waukesha County is 43.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Waukesha County's population under 18 was 21.58%, compared to the 22.51% nationwide.
Waukesha County's elderly or the senior population (over 65 age) was 18.63% as compared to 16.04% nationwide.
Of the total population in Waukesha County, 17.34% were under the age of 15, 16.86% aged 15 to 29, 47.17% aged 30 to 64, 16.19% aged 65 to 84, and 2.44% were 85 years of age and older.

There are 3,736 more females than males in Waukesha County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.46% females and 49.54% males in Waukesha County, WI.
The Waukesha County, WI gender ratio is 98.2:100 i.e. 98.2 men to 100 women (0.982).
For male population, the largest age group is 55-59 years with a population of 16,244.
For the female population, the largest age group is 55-59 years with a population of 16,693.

Waukesha County's population has become increasingly diverse:

Racial distribution of Waukesha County population: 89.90% are White, 1.59% are Black or African American, 0.20% are American Indian and Alaska Native, 3.78% are Asian, 0.02% are Native Hawaiian and other Pacific Islander, 0.93% are some other race and 3.58% are multiracial.
Waukesha County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 20,503 is Hispanic or Latino (of any race), and 384,829 (94.94% of the total population) is Non-Hispanic.
The largest racial group in Waukesha County is White with a population of 364,396 (89.90% of the total population).

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

The peak population was 410,434 in the year 2022
From 2000 to 2010, Waukesha County's population increased by 27,953 (7.72%), as compared to the national growth of 9.63%.
From 2010 to 2020, Waukesha County's population increased by 17,416 (4.47%), 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, Waukesha County's population was lowest in year 2000 at 362,098.