• county
  • FIPS 19135
  • Largest town: Albia

Monroe County, Iowa

Monroe County had 7,373 residents in the Census Vintage 2024 estimate, on 433.7 square miles of land. It ranks 88th of 99 in Iowa by population and 85th by land area.

Population
7,373
#88 of 99 in Iowa · #2,629 in US
Area
433.7 sq mi
#85 of 99 in Iowa · #2,339 in US
Density
17 / sq mi
#82 of 99 in Iowa · #2,338 in US
Median household income
$65,959
#62 of 99 in Iowa · #1,302 in US

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

Monroe County within Iowa. Pin: Des Moines.

Measure from here

Tools and pages that start from Monroe County

Monroe County population, land area and income

Monroe County had 7,373 residents in the Census Vintage 2024 estimate, on 433.7 square miles of land. It ranks 88th of 99 in Iowa by population and 85th by land area. That works out to 17.0 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, so Monroe County has 49% of the typical county's population.

Its SAIPE 2023 median household income of $65,959 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

7,373

3144th1st

2629th of 3,144 (US)

Land area

434 sq mi

3144th1st

2339th of 3,144 (US)

Density

17.0 / sq mi

3144th1st

2338th of 3,144 (US)

Median household income

$65,959

3143rd1st

1302nd of 3,143 (US)

Rank within Iowa (99)

Population

7,373

99th1st

88th of 99 (IA)

Land area

434 sq mi

99th1st

85th of 99 (IA)

Density

17.0 / sq mi

99th1st

82nd of 99 (IA)

Median household income

$65,959

99th1st

62nd of 99 (IA)

How Monroe County's population changed since 2020

Monroe County lost 223 residents between the July 2020 and July 2024 estimates, a drop of 2.9%. That ranks 94th 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, Monroe County recorded 344 births and 490 deaths, a natural change of -146. Net international migration added -4 and net domestic migration, people moving to or from other US counties, came to -53. The largest single component was natural change, which removed 146 people.

7,59620207,58620217,52420227,48620237,3732024
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
344
Deaths
490
Net international migration
-4
Net domestic migration
-53
Change, July 2023 to July 2024
-113

Where Monroe County is

The Census internal point of Monroe County is at 41.028800, -92.869600. 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 Monroe 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: Monroe County internal point. Dark pin: Des Moines.

Internal point

Decimal
41.028800, -92.869600
DMS
41°01'43.68"N 92°52'10.56"W
UTM
15N 510962.1E 4541962.3N
Geohash
9zmcqtn6j
Plus code
86H924HJ+G5

Towns in Monroe County

One incorporated place of 1,000+ people has residents in Monroe County, 3,579 people together, or 49% of the county. Each figure counts only the part of the town inside Monroe County; towns marked "part" extend into another county. The largest is Albia with 3,579.

  1. 01Albia3,579
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Monroe County

The Census 2024 county adjacency file lists 7 neighbors for Monroe County. The most populous is Wapello County, IA, with 35,681 residents. Distances run between Census internal points in a straight line.

Distance to Des Moines and the nearest big city

Des Moines is 54.4 miles NW of Monroe County's internal point in a straight line. The nearest place of 100,000 or more is Des Moines, IA (population 213,096), 53.7 miles away. The nearest place of 10,000 or more is Oskaloosa, IA (population 11,575), 21.7 miles away.

Monroe County FIPS code

The FIPS code of Monroe County is 19135: state code 19 for Iowa plus county code 135. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $65,959.

Questions people ask

What is the population of Monroe County, Iowa?

The Census Vintage 2024 estimate for July 1, 2024 is 7,373. That is down 223 people (2.9%) from the July 2020 estimate of 7,596.

What is the FIPS code of Monroe County?

19135. The first two digits (19) are Iowa; the last three (135) identify the county.

What is the largest town in Monroe County?

Albia, with 3,579 residents inside Monroe County in 2024.

Which counties border Monroe County?

7 county-equivalents border it in the Census 2024 adjacency file: Wapello County, IA; Marion County, IA; Mahaska County, IA; Appanoose County, IA; Davis County, IA; Lucas County, IA; Wayne 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.