Sac County, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 76th-largest in Iowa
The population of Sac County, Iowa is 9,759 as of the 2023 American Community Survey, making it the 76th-largest county in Iowa. The median household income is $70,991, the median home value is $138,400, and the median age is 45.3.
The population of Sac County has declined 7.9% since 2010 (10,355 → 9,533), a -0.59% annualized rate.
9,759
Population
-0.59%
Annual growth
17
People / sq mi
$70,991
Median Income
$138,400
Median Home Value
Sac County covers 575 sq mi of land at 17.0 people per square mile.
About Sac County, IA
Sac County is a county in Iowa with a population of 9,759. It ranks #76 among counties in Iowa by population. The median age is 45.3, older than the national median. The population is 50.9% male and 49.1% female.
The median household income in Sac County is $70,991, near the US median of $74,580. 4.1% of residents live below the federal poverty level. Home values sit at a median of $138,400, with monthly rent averaging $643. The homeownership rate of 78.0% is higher than the national rate of 64.8%.
Educational attainment in Sac County reflects 21.2% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 4.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 20.1 minutes each way.
Sac County Population History (2010-2024)
The county of Sac County had a population of 10,355 in 2010 and 9,533 in 2024, a -7.9% growth over 14 years. The peak was 10,355 in 2010. Average annual growth rate: -0.59%.
9,533
Population (2024)
10,355
Population (2010)
10,355
Peak (2010)
-0.59%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 10,355 |
| 2011 | 10,223 |
| 2012 | 10,161 |
| 2013 | 10,028 |
| 2014 | 10,046 |
| 2015 | 9,961 |
| 2016 | 9,804 |
| 2017 | 9,797 |
| 2018 | 9,675 |
| 2019 | 9,675 |
| 2020 | 9,800 |
| 2021 | 9,771 |
| 2022 | 9,680 |
| 2023 | 9,663 |
| 2024 | 9,533 |
Race & Ethnicity
| White | 95.0% |
| Black or African American | 0.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.5% |
| Two or More Races | 0.0% |
Age & Sex
45.3
Median Age
49.1%
Female
50.9%
Male
23.9%
Age 65+
Age Distribution
Children (under 15): 18.1% · Seniors (65+): 23.9%
Income & Poverty
| Median household income | $70,991$-2,156 vs state |
| Mean household income | $90,666 |
| Per-capita income | $40,261 |
| Poverty rate | 4.1%-2.8% vs state |
| Unemployment rate | 2.2% |
| Employment-to-population | 64.4% |
Top Industries by Employment
The largest employment sector in Sac County is professional & business services, accounting for 24.7% of workers.
How residents commute
0.4%
Drive alone
3.4%
Carpool
86.7%
Public transit
4.5%
Work from home
20.1 min
Avg commute
Housing
$138,400$-57,500 vs state
Median home value
$643
Median rent
78.0%
Homeownership rate
5,122
Total housing units
83.0%
Occupied
17.0%
Vacant
22.0%
Renter-occupied
Social & access
94.8%
With health insurance
89.4%
With broadband internet
14.4%
Foreign-born
8.3%
Veterans (18+)
12.3%
With a disability
94.9%
Speak language other than English at home
Education
92.2%
High School+
21.2%
Bachelor's+
Largest cities in Iowa
Other counties in Iowa
Part of Iowa
Metro areas in Iowa
County rankings
Frequently Asked Questions
Sac County, Iowa has a population of 9,759 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 76th-largest county in Iowa. Population density is 17 people per square mile.
The population of Sac County has declined 7.9% since 2010 (10,355 → 9,533), a -0.59% annualized rate.
The median household income in Sac County, Iowa is $70,991, with mean (average) household income of $90,666 and per-capita income of $40,261. 4.1% of residents live below the federal poverty level.
In Sac County, the largest racial and ethnic groups are White (95.0%), Black or African American (0.6%), Hispanic or Latino (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Sac County, Iowa is 45.3 years. Residents are 49.1% female and 50.9% male.
The median home value in Sac County is $138,400 and median monthly rent is $643. 78.0% of occupied housing units are owner-occupied. The county has 5,122 total housing units, 17.0% of which are vacant.
The largest employment sector in Sac County, Iowa is professional, scientific, and management services, employing 24.7% of workers. The unemployment rate is 2.2%.
Des Moines is among the largest cities associated with Sac County, Iowa, with a population of 212,464.
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Statewide data for Iowa
Population, race, income, age, and trends across Iowa
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.