• county
  • FIPS 19015
  • Largest town: Boone

Boone County, Iowa

Boone County had 26,729 residents in the Census Vintage 2024 estimate, on 570.5 square miles of land. It ranks 23rd of 99 in Iowa by population and 47th by land area.

Population
26,729
#23 of 99 in Iowa · #1,549 in US
Area
570.5 sq mi
#47 of 99 in Iowa · #1,771 in US
Density
47 / sq mi
#25 of 99 in Iowa · #1,533 in US
Median household income
$77,381
#16 of 99 in Iowa · #565 in US

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

Boone County within Iowa. Pin: Des Moines.

Measure from here

Tools and pages that start from Boone County

Boone County population, land area and income

Boone County had 26,729 residents in the Census Vintage 2024 estimate, on 570.5 square miles of land. It ranks 23rd of 99 in Iowa by population and 47th by land area. That works out to 46.9 people per square mile, below the US average of 96.3, and above the national county median.

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

Its SAIPE 2023 median household income of $77,381 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

26,729

3144th1st

1549th of 3,144 (US)

Land area

570 sq mi

3144th1st

1771st of 3,144 (US)

Density

46.9 / sq mi

3144th1st

1533rd of 3,144 (US)

Median household income

$77,381

3143rd1st

565th of 3,143 (US)

Rank within Iowa (99)

Population

26,729

99th1st

23rd of 99 (IA)

Land area

570 sq mi

99th1st

47th of 99 (IA)

Density

46.9 / sq mi

99th1st

25th of 99 (IA)

Median household income

$77,381

99th1st

16th of 99 (IA)

How Boone County's population changed since 2020

Boone County gained 27 residents between the July 2020 and July 2024 estimates, a rise of 0.1%. That ranks 40th 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, Boone County recorded 1,145 births and 1,469 deaths, a natural change of -324. Net international migration added +3 and net domestic migration, people moving to or from other US counties, came to +337. The largest single component was domestic migration, which added 337 people.

26.7k202026.8k202126.6k202226.6k202326.7k2024
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
1,145
Deaths
1,469
Net international migration
+3
Net domestic migration
+337
Change, July 2023 to July 2024
+162

Where Boone County is

The Census internal point of Boone County is at 42.038600, -93.938600. 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 Boone 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: Boone County internal point. Dark pin: Des Moines.

Internal point

Decimal
42.038600, -93.938600
DMS
42°02'18.96"N 93°56'18.96"W
UTM
15N 422314.0E 4654488.1N
Geohash
9zmpnkgux
Plus code
86J823Q6+CH

Towns in Boone County

4 incorporated places of 1,000+ people have residents in Boone County, 17,595 people together, or 66% of the county. Each figure counts only the part of the town inside Boone County; towns marked "part" extend into another county. The largest is Boone with 12,461.

  1. 01Boone12,461
  2. 02Madrid2,824
  3. 03Ogden1,970
  4. 04Woodward (part)340
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Boone County

The Census 2024 county adjacency file lists 6 neighbors for Boone County. The most populous is Polk County, IA, with 516,185 residents. Distances run between Census internal points in a straight line.

Distance to Des Moines and the nearest big city

Des Moines is 35.4 miles SSE of Boone County's internal point in a straight line. The nearest place of 100,000 or more is Des Moines, IA (population 213,096), 36.4 miles away. The nearest place of 10,000 or more is Boone, IA (population 12,461), 3.5 miles away.

Boone County FIPS code

The FIPS code of Boone County is 19015: state code 19 for Iowa plus county code 015. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $77,381.

Questions people ask

What is the population of Boone County, Iowa?

The Census Vintage 2024 estimate for July 1, 2024 is 26,729. That is up 27 people (0.1%) from the July 2020 estimate of 26,702.

What is the FIPS code of Boone County?

19015. The first two digits (19) are Iowa; the last three (015) identify the county.

What is the largest town in Boone County?

Boone, with 12,461 residents inside Boone County in 2024.

Which counties border Boone County?

6 county-equivalents border it in the Census 2024 adjacency file: Polk County, IA; Dallas County, IA; Story County, IA; Webster County, IA; Hamilton County, IA; Greene 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.