Le Mars, Iowa Demographics & Population 2026
During the 2020–2024 ACS period, Le Mars, Iowa had a total population of 10,640, the 39th largest city in Iowa, with a median household income of $74,701, which is about the same as the state average. The poverty rate is 9.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Le Mars Quick Facts
How Le Mars Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 10,597 | 10,640 | +0.4% |
| Median household income | $72,381 | $74,701 | +3.2% |
| Median home value | $202,200 | $219,200 | +8.4% |
How Le Mars Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 31 | National average: 61
Education
Educational Attainment (Adults 25+)
Le Mars Rankings in Iowa
Explore Iowa Rankings
Other Cities in Plymouth County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Remsen | 1,823 | $91,477 | 2.9% | $185,900 |
| Akron | 1,689 | $66,250 | 9.5% | $157,900 |
| Kingsley | 1,472 | $72,841 | 10.0% | $167,200 |
| Hinton | 931 | $114,531 | 1.4% | $263,100 |
| Merrill | 846 | $82,969 | 4.9% | $166,100 |
| Brunsville | 210 | $45,000 | 19.5% | $129,200 |
| Westfield | 123 | $68,125 | 8.1% | $117,500 |
| Oyens | 81 | $100,625 | 0.0% | $155,000 |
| Struble | 76 | $59,375 | 13.2% | $135,200 |
| Craig | 49 | $50,000 | 10.2% | $100,000 |
Cities Similar to Le Mars
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Waverly | 10,494 | $80,284 | $223,300 | 44.1% | 10.9% |
| Pella | 10,720 | $84,111 | $292,700 | 47.3% | 5.9% |
| Carroll | 10,208 | $69,706 | $188,700 | 27.1% | 8.9% |
| Pleasant Hill | 11,136 | $90,508 | $295,100 | 35.5% | 8.9% |
| Oskaloosa | 11,504 | $64,004 | $153,300 | 25.4% | 16.6% |
Population Overview
Le Mars is a small city located in Iowa, within Plymouth County. The total population is 10,640. It ranks as the 39th most populous out of 1,017 Census-designated places in Iowa.
Age Demographics
The median age in Le Mars is 39.0 years. This is 1% higher than the state median of 38.6 years.
Economy, Income & Housing
The median household income in Le Mars is $74,701. This is about the same as the state median of $75,059. It is also 7% lower than the national median of $80,734. The poverty rate stands at 9.2%. This is 17% lower than the state poverty rate of 11.1%. The unemployment rate is 2.9%. This is 20% lower than the state rate of 3.6%. The median home value is $219,200. Housing costs are 5% higher than the state median of $208,000. With a home-value-to-income ratio of just 2.9x, Le Mars is one of the most affordable housing markets in the area. 61.5% of occupied housing units are owner-occupied. This homeownership rate is 14% lower than the state average of 71.7%.
Race & Ethnicity
The largest racial or ethnic group in Le Mars is White (non-Hispanic), making up 81.3% of the population. Hispanic or Latino residents account for 10.8%. The Asian population (0.1%) is well below the state average of 2.5%.
Education
21.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 33% lower than the state rate of 31.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.1%.
Data Sources & Methodology
All demographic data for Le Mars, Iowa is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Iowa state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,017 Census-designated places in Iowa. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all Iowa city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Le Mars, Iowa?
Le Mars, Iowa has a population of 10,640 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Le Mars, IA?
The median household income in Le Mars is $74,701, which is 7% lower than the national median of $80,734.
What is the poverty rate in Le Mars, IA?
The poverty rate in Le Mars is 9.2%. This means approximately 961 residents live below the federal poverty line.
What is the racial makeup of Le Mars, Iowa?
Le Mars's population is 81.3% White, 5.5% Black, 10.8% Hispanic/Latino, and 0.1% Asian.
What is the median home value in Le Mars, IA?
The median home value in Le Mars is $219,200. The home-value-to-income ratio is 2.9x.
How educated is Le Mars, Iowa?
21.1% of adults (25+) in Le Mars hold a bachelor's degree or higher, and 4.5% hold a graduate or professional degree.