Ottawa Flag

Ottawa

County:
Franklin County
County Seat:
Yes
Area (mi²):
10.321
State:
Kansas

Ottawa is a city located in Franklin County, Kansas. Ottawa has a 2025 population of 12,758 . It is also the county seat of Franklin County . Ottawa is currently growing at a rate of 0.2% annually and its population has increased by 0.99% since the most recent census, which recorded a population of 12,633 in 2020.

The average household income in Ottawa is $76,532 with a poverty rate of 10.69%. The median age in Ottawa is 36.5 years: 35.1 years for males, and 37.2 years for females. For every 100 females there are 96.9 males.

12.8K
Total Population
1,236
Density (mi²)
25 0.2%
Growth

Ottawa Population

Ottawa Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Ottawa includes 90.46% White, and smaller percentages for Black or African American, Asian, other race, Native American and multiracial populations.

Population by Race

White (90.46%)

Two or more races (5.82%)

Black or African American (1.38%)

Asian (1.07%)

Other race (0.78%)

Native American (0.5%)

Race
Population
Percentage (of total)
White11,42790.46%
Two or more races7355.82%
Black or African American1741.38%
Asian1351.07%
Other race980.78%
Native American630.5%

Ottawa Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Ottawa's average per capita income is $45,744. Household income levels show a median of $64,655. The poverty rate stands at 10.69%.

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$104,623-
Families$89,161$92,213
Households$64,655$76,532
Non Families$34,130$43,599

$45,744

Average Income

$64,655

Median Household Income

10.69%

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)