Demographics of Le Mars city, Iowa

Le Mars city, Iowa had 10,760 people on July 1, 2025, by the Census Bureau’s estimate: +157 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Le Mars city, in four figures

10,760
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 10,640 ±28.; +1.5%
Change since July 2020: +157 people.; 39.0 ±3.3
Median age: ACS 2020–⁠2024.; $74,701 ±$5,737
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Le Mars city, Iowa's population grew 1.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Le Mars city, 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).

Source: The Census Bureau

About this chart

The figures

Le Mars city, Iowa's population grew 1.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Le Mars city, 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 1	Population	Index	United States
2020	10,603	100.0	100.0
2021	10,626	100.2	100.2
2022	10,612	100.1	100.7
2023	10,610	100.1	101.6
2024	10,605	100.0	102.5
2025	10,760	101.5	103.1

Population of Le Mars city, Iowa on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	10,603	—
2021	10,626	+23
2022	10,612	−14
2023	10,610	−2
2024	10,605	−5
2025	10,760	+155

Age, 2020–2024

The median age is 39.0 ±3.3: for men 38.7 ±4.9 and for women 39.2 ±3.9. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Le Mars city by age, ACS 2020–2024
Age	People	Share	Iowa	United States
Under 5	641 ±160	6.0% ±1.5	5.9% ±<0.1	5.6% ±<0.1
5 to 17	2,035 ±273	19.1% ±2.6	17.0% ±0.1	16.3% ±<0.1
18 to 24	894 ±175	8.4% ±1.6	10.0% ±0.1	9.1% ±<0.1
25 to 44	2,671 ±311	25.1% ±2.9	25.1% ±0.1	26.9% ±<0.1
45 to 64	2,481 ±317	23.3% ±3.0	23.9% ±0.1	24.8% ±<0.1
65 and over	1,918 ±285	18.0% ±2.7	18.1% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $74,701 ±$5,737, and income per person $37,904 ±$3,255, in 2024 dollars. The median is $75,059 ±$418 in Iowa and $80,734 ±$166 in the United States.

Households by income

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Households in Le Mars city by income, ACS 2020–2024
Household income	Households	Share	Iowa	United States
Under $25,000	590 ±172	13.6% ±3.9	13.9% ±0.2	14.6% ±<0.1
$25,000 to $49,999	687 ±189	15.8% ±4.3	18.5% ±0.3	16.7% ±<0.1
$50,000 to $74,999	911 ±237	21.0% ±5.4	17.5% ±0.3	15.5% ±<0.1
$75,000 to $99,999	812 ±215	18.7% ±4.9	14.0% ±0.3	12.6% ±<0.1
$100,000 to $149,999	702 ±191	16.2% ±4.3	18.7% ±0.3	17.5% ±<0.1
$150,000 to $199,999	355 ±137	8.2% ±3.1	8.8% ±0.2	9.6% ±<0.1
$200,000 or more	285 ±95	6.6% ±2.2	8.6% ±0.2	13.4% ±0.1

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 Le Mars city by age, ACS 2020–2024
Age	Below poverty	Rate	Iowa	United States
All ages	961 ±302	9.2% ±2.9	11.1% ±0.2	12.5% ±0.1
Under 18	304 ±107	11.4% ±3.7	12.9% ±0.3	16.1% ±0.1
18 to 59	377 ±158	7.1% ±3.0	11.4% ±0.3	11.6% ±0.1
60 and over	136 to 424	5.6% to 16.7%	8.8% ±0.2	11.0% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Housing, 2020–2024

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Housing in Le Mars city, ACS 2020–2024
Measure	Le Mars city	Iowa	United States
Housing units	4,512 ±226	1,437,699 ±523	143,775,355 ±10,234
Occupied	96.2% ±6.7	91.5% ±0.3	89.9% ±0.1
Vacant	0.6% to 6.9%	8.5% ±0.3	10.1% ±0.1
Owner occupied	61.5% ±4.1	71.7% ±0.3	65.2% ±0.3
Renter occupied	38.5% ±5.9	28.3% ±0.3	34.8% ±0.1
Median home value	$219,200 ±$16,354	$208,000 ±$1,141	$332,700 ±$236
Median gross rent	$929 ±$39	$972 ±$6	$1,413 ±$2
Median year built	1975 ±3	1972 ±1	1980 ±1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

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 Le Mars city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Iowa	United States
Hispanic or Latino	1,151 ±153	10.8% ±1.4	7.3% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	8,654 ±202	81.3% ±1.9	82.3% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	590 ±82	5.5% ±0.8	3.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 24	0% to 0.2%	2.5% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 14	0% to 0.1%	0.2% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 158	0% to 1.5%	0.2% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 16	0% to 0.2%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	72 to 256	0.7% to 2.4%	3.5% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

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 Le Mars city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Iowa	United States
Born in the state	7,649 ±363	71.9% ±3.4	69.6% ±0.2	57.3% ±<0.1
Born in another state	2,127 ±309	20.0% ±2.9	23.8% ±0.2	26.9% ±<0.1
Born a citizen outside the states	85 to 267	0.8% to 2.5%	0.7% ±<0.1	1.7% ±<0.1
Born abroad	688 ±235	6.5% ±2.2	5.9% ±0.1	14.1% ±<0.1
Naturalized citizens	253 ±121	2.4% ±1.1	2.6% ±0.1	7.4% ±<0.1
Not citizens	208 to 662	2.0% to 6.2%	3.3% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Le Mars city among the places of Iowa

39th of 86 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Iowa page.

Places of Iowa near Le Mars city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Oskaloosa city	11,504 ±54
Storm Lake city	11,428 ±49
Spencer city	11,400 ±28
Pleasant Hill city	11,136 ±60
Pella city	10,720 ±30
Le Mars city	10,640 ±28
Waverly city	10,494 ±43
Carroll city	10,208 ±37
Fort Madison city	10,133 ±27
Keokuk city	9,662 ±51
Grinnell city	9,505 ±52

Rankings this appears in

No. 4 Places in Iowa by median age
No. 12 Places in Iowa by Hispanic or Latino share
No. 16 Places in Iowa by foreign-born share
No. 16 Places in Iowa by median household income
No. 20 Places in Iowa by per capita income
No. 21 Places in Iowa by median rent

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026