Overview
20,505
Total Population
54.5
Median age
46.02%
Female population %
117.3:100
Gender ratio (M:F)
60-64 years
Largest age group
70.3
Total dependency ratio
White
Largest racial group
9
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Adams County's population is old compared to the rest of the country:
- The median age in Adams County is 54.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Adams County's population under 18 was 14.57%, compared to the 22.51% nationwide.
- Adams County's elderly or the senior population (over 65 age) was 29.59% as compared to 16.04% nationwide.
- Of the total population in Adams County, 11.68% were under the age of 15, 12.60% aged 15 to 29, 46.13% aged 30 to 64, 26.60% aged 65 to 84, and 2.99% were 85 years of age and older.

Read more about Adams County, WI population by age ➔
Gender
There are 1,631 less females than males in Adams County:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 46.02% females and 53.98% males in Adams County, WI.
- The Adams County, WI gender ratio is 117.3:100 i.e. 117.3 men to 100 women (1.173).
- For male population, the largest age group is 60-64 years with a population of 1,207.
- For the female population, the largest age group is 65-69 years with a population of 1,131.

Read more about Adams County, WI population by gender ➔
Race / Ethnicity
Adams County's population has become increasingly diverse:
- Racial distribution of Adams County population: 91.34% are White, 2.52% are Black or African American, 0.81% are American Indian and Alaska Native, 0.75% are Asian, 0.01% are Native Hawaiian and other Pacific Islander, 1.35% are some other race and 3.23% are multiracial.
- Adams County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
- By ethnicity, 9 is Hispanic or Latino (of any race), and 19,605 (95.61% of the total population) is Non-Hispanic.
- The largest racial group in Adams County is White with a population of 18,729 (91.34% of the total population).

Read more about Adams County, WI population by race ➔
Year by year
Adams County's population has not reached its peak yet and is showing a trend of further growth:
- The peak population was 21,226 in the year 2022
- From 2000 to 2010, Adams County's population increased by 840 (4.19%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Adams County's population decreased by 203 (0.97%), 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, Adams County's population was lowest in year 2017 at 19,905.

Read more about Adams County, WI population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
- U.S. Census Bureau Population Estimates Population Estimates Program (PEP)