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Demographics of Iowa

Iowa had 3,238,387 people on July 1, 2025, by the Census Bureau’s estimate: +47,306 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Iowa, in five figures

3,238,387
Population
July 1, 2025, Vintage 2025 estimate.
3,191,081
Population in July 2020
July 1, 2020, Vintage 2025 estimate.
+1.5%
Change since July 2020
+47,306 people.
38.6 ±0.2
Median age
ACS 2020–⁠2024.
$75,059 ±$418
Median household income
ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year’s change is births less deaths, net moves from abroad and net moves from other states, with the Bureau’s small residual. The 2020 row’s components run 3 months, from the April census to July 1.

Iowa grew 1.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Iowa's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — nation and states, with components of change

About this chart

The figures

Iowa grew 1.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Iowa's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1PopulationChangeIndexUnited States
20203,191,081not reported100.0100.0
20213,199,037+7,956100.2100.2
20223,201,890+2,853100.3100.7
20233,214,739+12,849100.7101.6
20243,230,454+15,715101.2102.5
20253,238,387+7,933101.5103.1

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Population of Iowa on July 1 of each year, Vintage 2025
July 1PopulationChange
20203,191,081+499
20213,199,037+7,956
20223,201,890+2,853
20233,214,739+12,849
20243,230,454+15,715
20253,238,387+7,933

Every county in Iowa, July 2025

Largest first. The change and its parts are July 2020 to July 2025, the five full years. “From elsewhere” is net moves from other counties, in this state or another.

Ranked: by population · by population growth

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Counties of Iowa by population, July 2025
CountyJuly 2025Change
Polk County516,546+4.8%
Linn County232,028+0.7%
Scott County175,259+0.4%
Johnson County160,044+4.6%
Black Hawk County131,532+0.4%
Dallas County118,457+17.8%
Woodbury County106,649+0.7%
Story County101,291+2.7%
Dubuque County99,381+0.1%
Pottawattamie County92,996−0.7%
Warren County57,331+9.0%
Clinton County46,002−0.9%
Cerro Gordo County42,372−1.5%
Muscatine County41,853−3.0%
Marshall County39,890−0.5%
Jasper County38,153+0.9%
Des Moines County38,077−2.0%
Webster County36,838−0.4%
Sioux County36,774+2.5%
Wapello County35,210−0.4%
Marion County34,192+2.3%
Lee County32,306−3.6%
Boone County26,799+0.4%
Benton County26,004+1.8%
Plymouth County25,6970%
Bremer County25,296+1.1%
Washington County22,667+0.6%
Mahaska County21,880−1.2%
Jones County21,253+2.9%
Buchanan County20,883+1.3%
Buena Vista County20,449−1.7%
Carroll County20,303−2.0%
Winneshiek County19,733−1.6%
Henry County19,349−5.4%
Jackson County19,288−0.8%
Fayette County19,047−2.1%
Poweshiek County18,368−1.4%
Cedar County18,359−0.7%
Dickinson County18,077+1.7%
Delaware County17,674+1.2%
Madison County17,270+3.8%
Clayton County16,845−1.1%
Tama County16,796−1.5%
Iowa County16,504−1.0%
Hardin County16,455−2.2%
Crawford County16,237−1.5%
Clay County16,202−0.9%
Jefferson County15,291−2.5%
Hamilton County14,944−0.5%
Floyd County14,901−4.5%
Page County14,856−2.3%
Mills County14,793+2.6%
Harrison County14,623+0.4%
Kossuth County14,322−3.2%
Allamakee County14,238+1.2%
O'Brien County14,220+0.5%
Butler County14,049−2.0%
Cass County12,960−1.2%
Wright County12,801−0.9%
Grundy County12,361+0.2%
Lyon County12,354+3.6%
Appanoose County12,077−1.7%
Union County11,829−2.5%
Shelby County11,689−0.2%
Chickasaw County11,663−2.8%
Cherokee County11,369−2.4%
Guthrie County10,782+1.6%
Mitchell County10,650+0.6%
Hancock County10,528−2.2%
Louisa County10,416−3.8%
Winnebago County10,251−3.8%
Montgomery County10,002−3.2%
Franklin County9,868−1.2%
Keokuk County9,797−2.0%
Clarke County9,574−1.6%
Calhoun County9,562−3.4%
Sac County9,525−2.7%
Howard County9,415−0.8%
Humboldt County9,409−2.0%
Davis County9,230+1.3%
Emmet County9,107−2.5%
Palo Alto County8,899−1.0%
Lucas County8,847+2.6%
Greene County8,658−1.0%
Monona County8,539−2.4%
Decatur County7,655−0.9%
Monroe County7,406−2.6%
Adair County7,403−1.3%
Worth County7,338−1.3%
Van Buren County7,131−1.2%
Pocahontas County6,819−3.6%
Ida County6,777−3.4%
Wayne County6,738+3.6%
Fremont County6,522−0.8%
Osceola County5,980−3.6%
Taylor County5,835−0.5%
Audubon County5,509−3.0%
Ringgold County4,642< +0.1%
Adams County3,617−2.5%

Every one of Iowa’s 86 places of 5,000 or more

Largest first, by the American Community Survey’s 2020–2024 count and its margin of error. A place that is also a county is listed with the counties.

Places of Iowa by population, ACS 2020–2024
PlaceACS 2020–⁠2024
Des Moines city212,421 ±197
Cedar Rapids city137,264 ±52
Davenport city100,913 ±50
Sioux City city86,101 ±29
Iowa City city75,752 ±43
Ankeny city72,615 ±64
West Des Moines city71,083 ±123
Ames city67,669 ±39
Waterloo city67,008 ±37
Council Bluffs city62,586 ±40
Dubuque city59,174 ±59
Urbandale city46,595 ±58
Marion city41,896 ±42
Cedar Falls city40,888 ±39
Bettendorf city39,647 ±42
Waukee city29,236 ±34
Marshalltown city27,626 ±28
Mason City city27,050 ±27
Ottumwa city25,430 ±29
Fort Dodge city24,827 ±47
Johnston city24,384 ±37
Clinton city24,322 ±18
Burlington city23,728 ±24
Muscatine city23,489 ±27
Coralville city23,234 ±34
Altoona city21,495 ±44
North Liberty city21,125 ±43
Clive city19,012 ±51
Grimes city16,366 ±26
Indianola city16,044 ±39
Newton city15,700 ±40
Norwalk city14,183 ±22
Boone city12,424 ±23
Oskaloosa city11,504 ±54
Storm Lake city11,428 ±49
Spencer city11,400 ±28
Pleasant Hill city11,136 ±60
Pella city10,720 ±30
Le Mars city10,640 ±28
Waverly city10,494 ±43
Carroll city10,208 ±37
Fort Madison city10,133 ±27
Keokuk city9,662 ±51
Grinnell city9,505 ±52
Fairfield city9,456 ±18
Mount Pleasant city8,951 ±39
Bondurant city8,560 ±18
Sioux Center city8,454 ±26
Denison city8,260 ±24
Perry city7,985 ±21
Webster City city7,769 ±24
Clear Lake city7,607 ±20
Decorah city7,535 ±37
Knoxville city7,473 ±27
Creston city7,435 ±36
Washington city7,290 ±43
Charles City city7,232 ±33
Hiawatha city7,206 ±37
Nevada city6,983 ±21
Eldridge city6,818 ±20
Atlantic city6,763 ±18
Adel city6,430 ±47
Orange City city6,426 ±35
Independence city6,164 ±32
Maquoketa city6,075 ±26
Polk City city6,037 ±18
Asbury city5,989 ±24
Estherville city5,839 ±17
Oelwein city5,834 ±24
Tiffin city5,737 ±18
Anamosa city5,629 ±24
DeWitt city5,546 ±34
Osceola city5,523 ±35
Spirit Lake city5,518 ±16
Red Oak city5,510 ±22
Sheldon city5,474 ±99
Winterset city5,416 ±18
Algona city5,377 ±26
Centerville city5,372 ±19
Clarinda city5,353 ±17
Manchester city5,191 ±24
Sergeant Bluff city5,171 ±32
Cherokee city5,154 ±38
Glenwood city5,144 ±35
Windsor Heights city5,143 ±18
Iowa Falls city5,038 ±27

Age, 2020–2024

The median age is 38.6 ±0.2: for men 37.8 ±0.2 and for women 39.6 ±0.2. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Iowa by age, ACS 2020–2024
AgePeopleShare
Under 5187,839 ±7175.9% ±<0.1
5 to 17547,176 ±3,32517.0% ±0.1
18 to 24321,343 ±3,49510.0% ±0.1
25 to 44805,535 ±3,64025.1% ±0.1
45 to 64766,458 ±3,54923.9% ±0.1
65 and over582,156 ±3,99918.1% ±0.1

Income and poverty, 2020–2024

Median household income is $75,059 ±$418, and income per person $40,877 ±$247, in 2024 dollars. The median is $80,734 ±$166 in the United States.

Households by income

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Households in Iowa by income, ACS 2020–2024
Household incomeHouseholdsShare
Under $25,000183,263 ±3,07313.9% ±0.2
$25,000 to $49,999243,713 ±3,61718.5% ±0.3
$50,000 to $74,999230,392 ±3,68317.5% ±0.3
$75,000 to $99,999184,128 ±3,33814.0% ±0.3
$100,000 to $149,999245,953 ±3,46318.7% ±0.3
$150,000 to $199,999115,618 ±2,1818.8% ±0.2
$200,000 or more112,640 ±2,0078.6% ±0.2

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Iowa by age, ACS 2020–2024
AgeBelow povertyRate
All ages344,519 ±6,79911.1% ±0.2
Under 1893,086 ±2,51612.9% ±0.3
18 to 59184,094 ±4,19311.4% ±0.3
60 and over67,339 ±1,8078.8% ±0.2

Housing, 2020–2024

Housing in Iowa, ACS 2020–2024
MeasureIowaUnited States
Housing units1,437,699 ±523143,775,355 ±10,234
Occupied91.5% ±0.389.9% ±0.1
Vacant8.5% ±0.310.1% ±0.1
Owner occupied71.7% ±0.365.2% ±0.3
Renter occupied28.3% ±0.334.8% ±0.1
Median home value$208,000 ±$1,141$332,700 ±$236
Median gross rent$972 ±$6$1,413 ±$2
Median year built1972 ±11980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Iowa by Hispanic origin and race, ACS 2020–2024
OriginPeopleShare
Hispanic or Latino233,706 ±1407.3% ±<0.1
White alone, not Hispanic2,642,646 ±2,13582.3% ±0.1
Black alone, not Hispanic121,705 ±2,0693.8% ±0.1
Asian alone, not Hispanic79,174 ±1,4182.5% ±<0.1
American Indian and Alaska Native alone, not Hispanic5,239 ±3710.2% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic5,703 ±3500.2% ±<0.1
Some other race alone, not Hispanic9,294 ±1,0950.3% ±<0.1
Two or more races, not Hispanic113,040 ±3,2763.5% ±0.1

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Iowa by place of birth and citizenship, ACS 2020–2024
BornPeopleShare
Born in the state2,234,007 ±6,91069.6% ±0.2
Born in another state762,559 ±6,54423.8% ±0.2
Born a citizen outside the states23,953 ±1,5560.7% ±<0.1
Born abroad189,988 ±3,6245.9% ±0.1
Naturalized citizens83,514 ±2,5672.6% ±0.1
Not citizens106,474 ±3,7113.3% ±0.1

Where Iowa ranks

Compared

Beside the state nearest it by population, and its largest counties each beside the next one down.

Iowa elsewhere on the Factbook

  • Reported crimeCrime and justice

    Offenses reported to police by type, the trend, and the reporting coverage.

  • Most dangerous cities in IowaCrime and justice

    What each agency serving 25,000 or more reported, ranked. Agency populations overlap, so these do not add up to the state.

  • Prison populationCrime and justice

    People held under the state’s correctional authority, and the imprisonment rate. A different publisher counting a different thing.

  • Arrests by race, sex and ageCrime and justice

    Arrests as the FBI’s participating agencies reported them, with what the figures can and cannot support at the top.

  • Hate crimeCrime and justice

    Incidents reported to the FBI by bias motivation, as counts — the collection publishes no participation share, so there is no rate to compare states on.

  • Federal obligationsFederal spending

    What federal agencies obligated against a place of performance in the state, per resident and by agency.

  • Registered nonprofitsNonprofits

    How many organizations the IRS lists in the state, what they report as revenue, and which kinds of work they do.

  • Payments to doctorsHealth

    What drug and device companies reported paying doctors with a practice address in the state, and the largest recipients.

  • Farm program paymentsFarm subsidies

    What the Farm Service Agency paid through the state’s county offices, by program and by recipient. The offices that administered the payments, not a count of farms: a recipient addressed elsewhere is counted where they were paid.

  • Paycheck Protection Program loansPPP loans

    The PPP loans SBA guaranteed to businesses operating in the state, by county, with how many carry a forgiveness amount and how many were charged off. Loans, not businesses: a business with two draws is two loans.

  • Public schoolsSchools

    Pupils, schools and teachers, the largest districts, what districts spend per pupil and where the money comes from, and the colleges that take federal student aid.

  • Federal civilian workforceFederal salaries

    Federal civilian employees stationed in the state by agency and occupation, with the pay OPM publishes and the share it withholds.

  • The Iowa Factbook entryAcross the Factbook

    Every measure the Factbook publishes for this state in one place, each with where it ranks among the others and the record it came from.

The immigration hub has no page for this state: EOIR runs no immigration court here, and CBP publishes by sector and field office, which are its own areas of responsibility rather than a geography. Immigration and the border.

Sources

Data retrieved