• county
  • FIPS 19161
  • Largest town: Sac City

Sac County, Iowa

Sac County had 9,533 residents in the Census Vintage 2024 estimate, on 575.0 square miles of land. It ranks 77th of 99 in Iowa by population and 38th by land area.

Population
9,533
#77 of 99 in Iowa · #2,445 in US
Area
575.0 sq mi
#38 of 99 in Iowa · #1,729 in US
Density
17 / sq mi
#83 of 99 in Iowa · #2,350 in US
Median household income
$72,395
#35 of 99 in Iowa · #824 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Sac County within Iowa. Pin: Des Moines.

Measure from here

Tools and pages that start from Sac County

Sac County population, land area and income

Sac County had 9,533 residents in the Census Vintage 2024 estimate, on 575.0 square miles of land. It ranks 77th of 99 in Iowa by population and 38th by land area. That works out to 16.6 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Iowa has 15,008 residents; Sac County is somewhat smaller.

Its SAIPE 2023 median household income of $72,395 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

9,533

3144th1st

2445th of 3,144 (US)

Land area

575 sq mi

3144th1st

1729th of 3,144 (US)

Density

16.6 / sq mi

3144th1st

2350th of 3,144 (US)

Median household income

$72,395

3143rd1st

824th of 3,143 (US)

Rank within Iowa (99)

Population

9,533

99th1st

77th of 99 (IA)

Land area

575 sq mi

99th1st

38th of 99 (IA)

Density

16.6 / sq mi

99th1st

83rd of 99 (IA)

Median household income

$72,395

99th1st

35th of 99 (IA)

How Sac County's population changed since 2020

Sac County lost 267 residents between the July 2020 and July 2024 estimates, a drop of 2.7%. That ranks 92nd of 99 in Iowa for growth. The median Iowa county changed by -0.6%, and the state as a whole by +1.6%.

Since the April 2020 estimates base, Sac County recorded 441 births and 670 deaths, a natural change of -229. Net international migration added +38 and net domestic migration, people moving to or from other US counties, came to -98. The largest single component was natural change, which removed 229 people.

9,80020209,77120219,68020229,66320239,5332024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
441
Deaths
670
Net international migration
+38
Net domestic migration
-98
Change, July 2023 to July 2024
-130

Where Sac County is

The Census internal point of Sac County is at 42.387500, -95.105200. It sits in UTM zone 15N. The map shades Iowa's 99 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Sac County outlined. Dots are towns of 1,000+ people with residents in it.

Monroe County: -2.9%Worth County: -1.7%Buena Vista County: +0.0%Jasper County: +0.8%Van Buren County: -0.0%Hardin County: -2.2%Ida County: -3.1%Marshall County: +0.8%Fayette County: -1.5%Ringgold County: -0.8%Wapello County: +1.0%Webster County: -0.2%Adams County: -2.8%Buchanan County: +0.6%Cerro Gordo County: -1.2%Lucas County: +1.6%Emmet County: -1.9%Floyd County: -3.8%Crawford County: -0.7%Linn County: +0.6%Montgomery County: -2.6%Polk County: +4.7%Cherokee County: +0.0%Bremer County: +1.3%Grundy County: +0.5%Adair County: -0.8%Cedar County: -1.4%Story County: +3.9%Mahaska County: -0.6%Davis County: +0.9%Clay County: +0.8%Johnson County: +4.6%Greene County: -1.0%Palo Alto County: -2.0%Benton County: +1.0%Cass County: -0.7%Wright County: -1.5%Audubon County: -2.1%Henry County: -5.3%Boone County: +0.1%Appanoose County: -1.4%Washington County: +0.4%Chickasaw County: -2.2%Poweshiek County: -0.9%Osceola County: -2.6%Wayne County: +1.8%Mitchell County: +0.4%Jefferson County: +0.5%Union County: -1.4%Butler County: -1.2%Hancock County: -1.3%Marion County: +1.9%Delaware County: +0.9%Humboldt County: +0.2%Sioux County: +1.8%Des Moines County: -1.1%O'Brien County: +0.8%Clayton County: -0.6%Black Hawk County: +1.0%Winnebago County: -2.6%Harrison County: +0.4%Decatur County: -1.0%Pocahontas County: -0.9%Lyon County: +3.8%Iowa County: -1.4%Franklin County: +0.3%Dickinson County: +2.2%Madison County: +3.2%Allamakee County: +0.8%Jones County: +2.2%Carroll County: -1.6%Kossuth County: -2.6%Hamilton County: -1.0%Howard County: -1.4%Page County: -1.1%Guthrie County: +1.5%Tama County: -1.8%Monona County: -3.6%Clarke County: -2.1%Lee County: -3.4%Mills County: +2.1%Sac County: -2.7%Scott County: +0.6%Keokuk County: -1.6%Jackson County: -0.3%Warren County: +7.1%Calhoun County: -1.9%Shelby County: +0.8%Fremont County: -1.1%Dubuque County: -0.1%Louisa County: -1.8%Taylor County: -0.6%Woodbury County: +1.2%Clinton County: -0.9%Winneshiek County: -1.6%Pottawattamie County: -0.1%Plymouth County: +0.5%Muscatine County: -2.4%Dallas County: +14.7%
Change 2020 to 2024
  1. < -1.9%
  2. < -1.0%
  3. < +0.0%
  4. < +0.9%
  5. ≥ +0.9%
no data

Orange pin: Sac County internal point. Dark pin: Des Moines.

Internal point

Decimal
42.387500, -95.105200
DMS
42°23'15.00"N 95°06'18.72"W
UTM
15N 326710.5E 4694948.0N
Geohash
9zs35u6t0
Plus code
86J69VQV+2W

Towns in Sac County

2 incorporated places of 1,000+ people have residents in Sac County, 3,112 people together, or 33% of the county. Each figure counts only the part of the town inside Sac County; towns marked "part" extend into another county. The largest is Sac City with 1,992.

  1. 01Sac City1,992
  2. 02Lake View1,120
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Sac County

The Census 2024 county adjacency file lists 7 neighbors for Sac County. The most populous is Buena Vista County, IA, with 20,816 residents. Distances run between Census internal points in a straight line.

Distance to Des Moines and the nearest big city

Des Moines is 94.7 miles SE of Sac County's internal point in a straight line. The nearest place of 100,000 or more is Omaha, NE (population 489,265), 91.8 miles away. The nearest place of 10,000 or more is Storm Lake, IA (population 11,627), 18.3 miles away.

Sac County FIPS code

The FIPS code of Sac County is 19161: state code 19 for Iowa plus county code 161. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $72,395.

Questions people ask

What is the population of Sac County, Iowa?

The Census Vintage 2024 estimate for July 1, 2024 is 9,533. That is down 267 people (2.7%) from the July 2020 estimate of 9,800.

What is the FIPS code of Sac County?

19161. The first two digits (19) are Iowa; the last three (161) identify the county.

What is the largest town in Sac County?

Sac City, with 1,992 residents inside Sac County in 2024.

Which counties border Sac County?

7 county-equivalents border it in the Census 2024 adjacency file: Buena Vista County, IA; Carroll County, IA; Crawford County, IA; Cherokee County, IA; Calhoun County, IA; Pocahontas County, IA; Ida County, IA.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.