Knoxville Flag

Knoxville

County:
Marion County
County Seat:
Yes
Area (mi²):
4.618
State:
Iowa

Knoxville is a city located in Marion County, Iowa. Knoxville has a 2025 population of 7,340. It is also the county seat of Marion County. Knoxville is currently declining at a rate of -0.62% annually and its population has decreased by -3.04% since the most recent census, which recorded a population of 7,570 in 2020.

The average household income in Knoxville is $88,037 with a poverty rate of 9.01%.The median age in Knoxville is 42.2 years: 42.9 years for males, and 40.8 years for females.

7.3K
Total Population
1,590
Density (mi²)
-46 -0.62%
Growth

Knoxville Population

Knoxville Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Knoxville includes 94.63% White, and smaller percentages for Asian, Black or African American, other race, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White7,09194.63%
Two or more races2683.58%
Asian761.01%
Black or African American340.45%
Other race150.2%
Native Hawaiian or Pacific Islander70.09%
Native American20.03%

Knoxville Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Knoxville's average per capita income is $47,154. Household income levels show a median of $70,136. The poverty rate stands at 9.01%.

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$95,641-
Families$81,042$105,475
Households$70,136$88,037
Non Families$32,239$57,017

$47,154

Average Income

$70,136

Median Household Income

9.01%

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)