Le Mars, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Le Mars, Iowa is 10,597 as of the 2023 American Community Survey, making it the 39th-largest city in Iowa. The median household income is $72,381, the median home value is $202,200, and the median age is 39.1.
The population has grown 8.6% since 2010 (9,827 → 10,674).
10,597
Population
1206
People / sq mi
$72,381
Median Income
$202,200
Median Home Value
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Le Mars covers 8.8 sq mi of land at 1206 people per square mile.
About Le Mars, IA
Remote work is unusually rare in Le Mars: 2.6% of workers primarily work from home, below the 14.0% national rate. With 10,597 residents, Le Mars is a city in Iowa. It ranks #39 among cities in Iowa by population.
Median household income is $72,381, below the US median of $78,538. Poverty runs at 6.0%, below the national 12.4%. Homes are comparatively cheap — a median value of $202,200, with typical rent around $908.
College attainment is 24.3%, below the national 35.0%. Remote work is rare here (2.6%, below the national 14.0%), and the average commute runs about 16 minutes each way.
Le Mars city Population History (2010-2024)
The city of Le Mars city had a population of 9,827 in 2010 and 10,674 in 2024, a 8.6% growth over 14 years. The peak was 10,674 in 2024. Average annual growth rate: 0.60%.
10,674
Population (2024)
9,827
Population (2010)
10,674
Peak (2024)
0.60%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 9,827 |
| 2011 | 9,759 |
| 2012 | 9,770 |
| 2013 | 9,798 |
| 2014 | 9,802 |
| 2015 | 9,815 |
| 2016 | 9,936 |
| 2017 | 9,891 |
| 2018 | 9,957 |
| 2019 | 10,081 |
| 2020 | 10,605 |
| 2021 | 10,631 |
| 2022 | 10,624 |
| 2023 | 10,641 |
| 2024 | 10,674 |
Race & Ethnicity
| White | 85.6% |
| Black or African American | 5.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.3% |
| Two or More Races | 0.0% |
Economy & Income
$72,381
Median Household Income
$38,065
Per Capita Income
6.0%
Poverty Rate
1.1%
Unemployment Rate
Housing
$202,200
Median Home Value
$908
Median Rent
62.2%
Owner-Occupied
Education
94.5%
High School+
24.3%
Bachelor's+
Commute
0.5%
Drive Alone
82.6%
Public Transit
2.6%
Work From Home
16.1 min
Avg Commute
Community Profile
21.6%
Foreign Born
87.2%
Non-English at Home
7.2%
Veterans
14.3%
With Disability
92.4%
Health Insurance
94.1%
Internet Access
Employment by Industry
| Manufacturing | 28.1% |
| Professional, Scientific & Management | 17.9% |
| Retail Trade | 8.8% |
| Arts, Entertainment & Food Services | 7.0% |
| Finance, Insurance & Real Estate | 5.8% |
| Information | 4.8% |
| Construction | 4.7% |
| Education, Health Care & Social Services | 4.6% |
| Public Administration | 3.5% |
| Transportation & Warehousing | 1.9% |
| Agriculture & Mining | 1.9% |
Largest cities in Iowa
Largest counties in Iowa
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City rankings
Frequently Asked Questions
Le Mars, Iowa has a population of 10,597 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 39th-largest city in Iowa.
The median household income in Le Mars, Iowa is $72,381, with 6.0% of residents living below the federal poverty level.
The median home value in Le Mars, Iowa is $202,200, with median monthly rent at $908 and a homeownership rate of 62.2%.
The median age in Le Mars, Iowa is 39.1 years. The population is 49.4% male and 50.6% female.
The population has grown 8.6% since 2010 (9,827 → 10,674).
Le Mars city, IA Climate
Le Mars city, IA has an average annual temperature of 8.5°C (47°F) and receives about 667 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
8.5°C
Avg Temp
667
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -8° / 17° | 15 mm |
| February | -5° / 23° | 15 mm |
| March | 2° / 35° | 48 mm |
| April | 9° / 48° | 66 mm |
| May | 16° / 61° | 87 mm |
| June | 21° / 70° | 100 mm |
| July | 23° / 74° | 85 mm |
| August | 22° / 72° | 80 mm |
| September | 17° / 63° | 70 mm |
| October | 10° / 50° | 50 mm |
| November | 1° / 34° | 32 mm |
| December | -6° / 21° | 19 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Le Mars city, IA
The most comfortable months to visit Le Mars city, IA are typically August, June and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -14°C low). June is usually the wettest month.
Where to stay near Le Mars
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.