Lamar Flag

Lamar

County:
Barton County
County Seat:
Yes
Area (mi²):
5.214
State:
Missouri

Lamar is a city located in Barton County, Missouri. Lamar has a 2025 population of 4,326. It is also the county seat of Barton County. Lamar is currently growing at a rate of 0.28% annually and its population has increased by 1.43% since the most recent census, which recorded a population of 4,265 in 2020.

The average household income in Lamar is $53,386 with a poverty rate of 33.29%.The median age in Lamar is 39.6 years: 42.7 years for males, and 38.3 years for females.

4.3K
Total Population
830
Density (mi²)
12 0.28%
Growth

Lamar Population

Lamar Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Lamar includes 93.8% White, and smaller percentages for other race, Black or African American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White4,02493.8%
Two or more races2044.76%
Other race370.86%
Black or African American250.58%

Lamar Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lamar's average per capita income is $32,866. Household income levels show a median of $34,894. The poverty rate stands at 33.29%.

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$69,244-
Families$52,813$62,738
Households$34,894$53,386
Non Families$23,977$33,561

$32,866

Average Income

$34,894

Median Household Income

33.29%

Poverty Rate

Nearby Cities

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)