Winnebago County, IA Population

Overview

10,743

Total Population

41.4

Median age

49.72%

Female population %

101.1:100

Gender ratio (M:F)

15-19 years

Largest age group

63.2

Total dependency ratio

White

Largest racial group

551

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Winnebago County is 41.4, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Winnebago County's population under 18 was 22.17%, compared to the 22.51% nationwide.
Winnebago County's elderly or the senior population (over 65 age) was 21.05% as compared to 16.04% nationwide.
Of the total population in Winnebago County, 17.69% were under the age of 15, 19.63% aged 15 to 29, 41.64% aged 30 to 64, 18.18% aged 65 to 84, and 2.87% were 85 years of age and older.

There are 61 less females than males in Winnebago County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.72% females and 50.28% males in Winnebago County, IA.
The Winnebago County, IA gender ratio is 101.1:100 i.e. 101.1 men to 100 women (1.011).
For male population, the largest age group is 15-19 years with a population of 512.
For the female population, the largest age group is 55-59 years with a population of 426.

Winnebago County's population has become increasingly diverse:

Racial distribution of Winnebago County population: 93.76% are White, 0.80% are Black or African American, 0.09% are American Indian and Alaska Native, 2.66% are Asian, 0.92% are some other race and 1.76% are multiracial.
Winnebago County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 551 is Hispanic or Latino (of any race), and 10,192 (94.87% of the total population) is Non-Hispanic.
The largest racial group in Winnebago County is White with a population of 10,073 (93.76% of the total population).

Winnebago County's population has already reached its peak and is showing a trend of decline:

The peak population was 11,775 in the year 2000
From 2000 to 2010, Winnebago County's population decreased by 930 (7.90%), as compared to the national growth of 9.63%.
From 2010 to 2020, Winnebago County's population decreased by 183 (1.69%), 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, Winnebago County's population was lowest in year 2019 at 10,357.