Overview
9,829
Total Population
46.1
Median age
49.89%
Female population %
100.4:100
Gender ratio (M:F)
55-59 years
Largest age group
71.4
Total dependency ratio
White
Largest racial group
364
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Sac County's population is old compared to the rest of the country:
- The median age in Sac County is 46.1, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Sac County's population under 18 was 22.31%, compared to the 22.51% nationwide.
- Sac County's elderly or the senior population (over 65 age) was 23.26% as compared to 16.04% nationwide.
- Of the total population in Sac County, 18.38% were under the age of 15, 15.44% aged 15 to 29, 42.91% aged 30 to 64, 19.34% aged 65 to 84, and 3.92% were 85 years of age and older.

Read more about Sac County, IA population by age ➔
Gender
There are 21 less females than males in Sac County:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.89% females and 50.11% males in Sac County, IA.
- The Sac County, IA gender ratio is 100.4:100 i.e. 100.4 men to 100 women (1.004).
- For male population, the largest age group is 55-59 years with a population of 406.
- For the female population, the largest age group is 60-64 years with a population of 402.

Read more about Sac County, IA population by gender ➔
Race / Ethnicity
Sac County's population has become increasingly diverse:
- Racial distribution of Sac County population: 96.84% are White, 0.76% are Black or African American, 0.66% are Asian, 0.41% are some other race and 1.33% are multiracial.
- Sac County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
- By ethnicity, 364 is Hispanic or Latino (of any race), and 9,465 (96.30% of the total population) is Non-Hispanic.
- The largest racial group in Sac County is White with a population of 9,518 (96.84% of the total population).

Read more about Sac County, IA population by race ➔
Year by year
Sac County's population has already reached its peak and is showing a trend of decline:
- The peak population was 11,441 in the year 2000
- From 2000 to 2010, Sac County's population decreased by 1,086 (9.49%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Sac County's population decreased by 561 (5.42%), 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, Sac County's population was lowest in year 2022 at 9,673.

Read more about Sac County, IA 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)