Sac County, IA demographics:
population, income, and more

Total population
9,689
-0.7% year-over-year change
Median household income
$73,838/yr
4.0% year-over-year change
Housing units
5,118
-0.1% year-over-year change

Sac County population

How many people live in Sac County

Sac County is home to 9,689 residents, according to the most recent Census data. Gender-wise, 50.7% of Sac County locals are male, and 49.3% are female.

Total population
9,689
-0.7% year-over-year change
Gender ratio
Male
50.7%
4,910
Female
49.3%
4,779
Value Percent YoY change
Male 4,910 50.7% -1.1%
Female 4,779 49.3% -0.3%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Sac County is 46, with the population distributed as follows: about 17.5% are children under 15, then 11% are in the 15 to 24 age group. Adults between 25 and 44 make up 20.2% of the population, while another 27% fall into the 45 to 64 bracket. Finally, around 24.3% are 65 or older.

Median age
46.2
Age breakdown
Under 15
17.5%
15 to 24
11%
25 to 44
20.2%
45 to 64
27%
Over 65
24.3%
Value Percent YoY change
Under 15 1,693 17.5% -4.3%
15 to 24 1,070 11% -0.5%
25 to 44 1,962 20.2% -2.6%
45 to 64 2,613 27% 1.7%
Over 65 2,351 24.3% 0.9%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Sac County, 97.2% of the population are US-born citizens, while 1.2% have gained naturalized citizenship. At the same time, 1.6% of residents are non-citizens. As for race, 92.7% of locals are Caucasian, 0.5% are African American and 0.6% have Asian roots. Another 0.1% are Indigenous American, 0.2% are Pacific Islanders, while 2% identify as another race. There’s also a share of 3.9% that includes residents with two or more races.

Citizenship
U.S.-born citizens
97.2%
Non-U.S.-born citizens
1.2%
Non-citizens
1.6%
Value Percent YoY change
U.S.-born citizens 9,413 97.2% -0.1%
Non-U.S.-born citizens 120 1.2% -21.1%
Non-citizens 156 1.6% -15.7%
Racial breakdown
White
92.7%
Black or African American
0.5%
American Indian and Alaska Native
0.1%
Asian
0.6%
Native Hawaiian and other Pacific Islander
0.2%
Two or more races
3.9%
Other
2%
Value Percent
White 8,982 92.7%
Black or African American 49 0.5%
American Indian and Alaska Native 8 0.1%
Asian 63 0.6%
Native Hawaiian and other Pacific Islander 17 0.2%
Two or more races 376 3.9%
Other 194 2%

Households in Sac County

A peek inside Sac County households

Sac County has 4,302 households, with an average of 2 members in each. Of these, 62.3% are families, while the remaining 37.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
4,302
1.2% year-over-year change
Average people per household
2
Non-family households
1,622
Family households
2,680
Value Percent YoY change
Non-family households 1,622 37.7% 0.4%
Family households 2,680 62.3% 1.7%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Sac County

The housing landscape of Sac County

Sac County's housing consists of 5,118 units, with 84.3% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.9% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 2.6% of the housing landscape.

Housing units
5,118
-0.1% year-over-year change
Housing types
Value Percent
1 unit, detached 4,313 84.3%
1 unit, attached 149 2.9%
2 units 56 1.1%
3 or 4 units 193 3.8%
5 to 9 units 61 1.2%
10 to 19 units 77 1.5%
20 to 49 units 136 2.7%
50 or more units 2 0%
Mobile home 131 2.6%
Homes built since 2020
17
-5.6% year-over-year change

The age of buildings in Sac County

In Sac County, the median construction year is 1957. About 35.2% of homes were built before the 1940s, with another 6.4% going up by 1949. Most development happened in the second half of the 20th century. Then, 4.9% of homes were added from 2000 to 2009, 3.8% between 2010 and 2019, and 0.3% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 1,804 35.2% -3.7%
Built between 1940 and 1949 329 6.4% -15.4%
Built between 1950 and 1959 611 11.9% 11.5%
Built between 1960 and 1969 564 11% -11.3%
Built between 1970 and 1979 833 16.3% 15.7%
Built between 1980 and 1989 311 6.1% 27.5%
Built between 1990 and 1999 208 4.1% -21.5%
Built between 2000 and 2009 249 4.9% 17.4%
Built between 2010 and 2019 192 3.8% -11.5%
Built in 2020 or later 17 0.3% -5.6%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Sac County occupancy rates

Out of the 4,302 occupied housing units in Sac County, 78% are owner-occupied, while 22% are lived in by tenants. Meanwhile, 15.9% of all homes on the local market sit vacant.

Occupied housing units
4,302
1.2% year-over-year change
Occupancy breakdown
Renter occupied
946
Owner occupied
3,356
Value Percent YoY
change
Renter occupied 946 22% 1.3%
Owner occupied 3,356 78% 1.2%
Unoccupied housing units
15.9%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Sac County housing costs

Housing costs in Sac County come to a median of $711 per month, while tenants specifically pay a median gross rent of $722.

Median housing costs per month
$711/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Sac County
$722/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Sac County

Sac County education at a glance

About 37.5% of the population in Sac County went to high school, while 22.1% pursued college studies. Another 16.7% earned an associate degree and 16.7% hold a bachelor’s. Meanwhile, 4.7% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 176 2.3% -17.0%
High school diploma 2,846 37.5% -1.9%
College diploma 1,674 22.1% -3.4%
Associate degree 1,267 16.7% 4.6%
Bachelor's degree 1,266 16.7% 8.4%
Graduate degree 355 4.7% -1.7%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Sac County

How much people earn in Sac County

The average annual household income in Sac County was $88,368 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -2.5% change from the previous year. At the same time, the median income stood at $73,838, reflecting a +4% shift over the same period.

Average household income in Sac County
$88,368/year
-2.5% year-over-year change
Median household income in Sac County
$73,838/year
4.0% year-over-year change

Sac County income by age

In Sac County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $93,472. Those with someone between 45 and 64 in charge, often well established professionally, earn $78,795 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $53,125, while those led by someone over 65, many of whom may be retired, have about $48,913 in earnings. Overall, 90.8% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $53,125 3.0%
25 - 44 $93,472 8.5%
45 - 64 $78,795 3.9%
Over 65 $48,913 -2.7%
Above poverty level
8,585
Below poverty level
868
Value Percent YoY
change
Above poverty level 8,585 90.8% -1.7%
Below poverty level 868 9.2% 15.4%

Employment in Sac County

Workforce and job types in Sac County

The job market in Sac County is powered by 5,023 working residents, spread across a range of industries and roles. 66.4% of the working population are employed in professional or administrative positions, while 33.6% are in hands-on or service-based jobs. Also, 13.9% run their own businesses, 65.8% are employed by private companies, and 13.2% work in the public sector.

Workforce demographics

Working population
5,023
-0.2% year-over-year change
White collar
3,336
Blue collar
1,687
Value Percent YoY change
White collar 3,336 66.4% -1.5%
Blue collar 1,687 33.6% 2.4%
Employer type
Self employees
13.9%
Private companies
65.8%
Governmental workers
13.2%
Not for profit companies
7.1%
Value Percent YoY change
Self employees 698 13.9% -6.6%
Private companies 3,304 65.8% 2.2%
Governmental workers 665 13.2% 6.1%
Not for profit companies 356 7.1% -16.8%
Unemployment rate
4.4%
32.4% year-over-year change

Available workforce

The unemployment rate in Sac County stands at 4.4%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Sac County

How people get around in Sac County

Commuting methods vary: 91.9% of residents travel by personal vehicle and 2.4% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 4,540 91.9% 0.6%
Bus or trolleybus 11 0.2% -35.3%
Ferryboat 1 0% 0.0%
Bicycle 15 0.3% 66.7%
Walk 121 2.4% -28.4%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Sac County by zipcode?

Zipcode Population Number of households Median income Average income
50561 585 215 $67,446 $77,600
50567 280 116 $78,125 $79,639
50568 1,384 524 $75,250 $79,798
50583 2,288 1,171 $62,981 $81,589
50535 1,198 457 $91,995 $99,974
51431 430 187 $54,258 $76,420
51433 567 227 $68,125 $78,664
51436 815 361 $61,926 $91,361
51020 632 231 $80,066 $86,409
51053 1,016 439 $72,534 $94,717

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FAQs about Sac County demographics 

What is the total population of Sac County?

Sac County has a total population of 9,689 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.7% compared to a year ago.

What is the gender ratio in Sac County?

The gender ratio in Sac County is as follows:
  • 50.7% males (4,910 residents)
  • 49.3% females (4,779 residents)

What is the median age in Sac County?

The median age in Sac County is 46.2.

What is the age distribution of the population in Sac County?

The age distribution in Sac County is as follows:
  • Under 15: 17.5% (1,693 residents)
  • Ages 15-24: 11% (1,070 residents)
  • Ages 25-44: 20.2% (1,962 residents)
  • Ages 45-64: 27% (2,613 residents)
  • Over 65: 24.3% (2,351 residents)

What is the racial and ethnic makeup of Sac County?

The racial and ethnic makeup of Sac County is as follows:
  • White: 92.7% (8,982 residents)
  • Black or African American: 0.5% (49 residents)
  • American Indian and Alaska Native: 0.1% (8 residents)
  • Asian: 0.6% (63 residents)
  • Native Hawaiian and Other Pacific Islander: 0.2% (17 residents)
  • Two or More Races: 3.9% (376 residents)
  • Other: 2% (194 residents)

What percentage of the population in Sac County are U.S.-born citizens?

U.S.-born citizens represent 97.2% of the population in Sac County.

How many housing units are there in Sac County?

There are 5,118 housing units in Sac County, reflecting a -0.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Sac County and what is the average household size?

Sac County has a total of 4,302 households, with an average of 2 people in each.

What is the median household income in Sac County?

Sac County has a median household income of $73,838, representing a +4.0% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Sac County?

The employment rate is 95.6% in Sac County, with a workforce of 5,023 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 66.4% (3,336 residents)
  • Blue-collar workers: 33.6% (1,687 residents)

Places of employment:
  • Self-employed: 13.9% (698 residents)
  • Private companies: 65.8% (3,304 residents)
  • Governmental workers: 13.2% (665 residents)
  • Not-for-profit companies: 7.1% (356 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025