Le Mars Flag

Le Mars

County:
Plymouth County
County Seat:
Yes
Area (mi²):
8.537
State:
Iowa

Le Mars is a city located in Plymouth County, Iowa. Le Mars has a 2025 population of 10,629. It is also the county seat of Plymouth County. Le Mars is currently growing at a rate of 0.06% annually and its population has increased by 0.26% since the most recent census, which recorded a population of 10,601 in 2020.

The average household income in Le Mars is $90,390 with a poverty rate of 8.85%.The median age in Le Mars is 39.1 years: 38.9 years for males, and 39.2 years for females.

10.6K
Total Population
1,245
Density (mi²)
6 0.06%
Growth

Le Mars Population

Le Mars Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Le Mars includes 85.6% White, 5.32% Black or African American, 4.3% other race, and smaller percentages for Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White9,07185.6%
Black or African American5645.32%
Two or more races4744.47%
Other race4564.3%
Asian180.17%
Native Hawaiian or Pacific Islander130.12%
Native American10.01%

Le Mars Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Le Mars' average per capita income is $51,363. Household income levels show a median of $72,381. The poverty rate stands at 8.85%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$93,835-
Families$86,313$102,807
Households$72,381$90,390
Non Families$42,038$64,012

$51,363

Average Income

$72,381

Median Household Income

8.85%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)