Allen County Flag

Allen County

State:
Kansas
County Seat:
Iola

Allen County's estimated 2025 population is 12,258 with a growth rate of -0.62% in the past year according to the most recent United States census data. Allen County is the 36th largest county in Kansas. The 2010 population was 13,363 and has seen a growth of -8.27% since that time.

12,258
Total Population
25
Population Density (mi²)
36
Population Rank (State)
-77 -0.62%
Annual Population Growth

Allen County Population

Allen County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Allen County includes 91.06% White, and smaller percentages for Black or African American, Native Hawaiian or Pacific Islander, Native American, Asian, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native Hawaiian or Pacific Islander

Native American

Asian

Other race

Race
Population
Percentage (of total)
White11,37491.06%
Two or more races5094.07%
Black or African American2361.89%
Native Hawaiian or Pacific Islander1080.86%
Native American980.78%
Asian930.74%
Other race730.58%

Allen County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Allen County's average per capita income is $37,500. Household income levels show a median of $57,618. The poverty rate stands at 13.11%.

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$90,515-
Families$73,658$82,584
Households$57,618$69,378
Non Families$29,792$40,704

$37,500

Average Income

$57,618

Median Household Income

13.11%

Poverty Rate