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 2026 population of 7,373. It is also the county seat of Marion County. Knoxville is currently declining at a rate of -0.45% annually and its population has decreased by -2.65% since the most recent census, which recorded a population of 7,574 in 2020.

The median household income in Knoxville is $61,599 with a poverty rate of 12.46%. The median age in Knoxville is 42.2 years: 42.4 years for males, and 41.7 years for females. For every 100 females there are 83.8 males.

7.4K
Total Population
1,597
Density (mi²)
-33 -0.45%
Growth

Knoxville Population

Knoxville Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20267,373-33-0.45%
20257,406-34-0.46%
20247,440180.24%
20237,422-5-0.07%
20227,427-49-0.66%
20217,476-98-1.29%
20207,574-15-0.2%
20197,159-29-0.4%
20187,188170.24%
20177,171-30-0.42%
20167,201-40-0.55%
20157,241520.72%
20147,189130.18%
20137,176-75-1.03%
20127,251-31-0.43%
20117,282-8-0.11%
20107,290-23-0.31%
20007,731-501-6.09%
19908,232891.09%
19808,1433885%
19707,755-62-0.79%
19607,8171922.52%
19507,6256899.93%
19406,9362,23947.67%
19304,6971,17433.32%
19203,52333310.44%
19103,190591.88%
19003,13149918.96%
18902,632552.13%
18802,57700%

Median Age

Overall: 42.2 years
Female: 41.7 years
Male: 42.4 years

Knoxville Adults

There are 6,018 adults, (1,720 of whom are seniors) in Knoxville.

Sex Ratio

Female: 4,065 (54.4%)
Male: 3,408 (45.6%)

Demographics

The racial composition of Knoxville includes 94.22% White, and smaller percentages for Asian, other race, Black or African American, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White7,04194.22%
Two or more races2633.52%
Asian1111.49%
Other race360.48%
Black or African American200.27%
Native American20.03%
Race
Population ↓
Percentage (of total)
White881.18%
Two or more races390.52%
Other race140.19%
Race
Population ↓
Percentage (of total)
White6,95393.04%
Two or more races2243%
Asian1111.49%
Other race220.29%
Black or African American200.27%
Native American20.03%

Knoxville Marital Status

Economics and Income Statistics

Knoxville 's average per capita income is $41,513. Household income levels show a median of $61,599. The poverty rate stands at 12.46%.

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$96,071-
Families$82,903$99,124
Households$61,599$84,447
Non Families$42,206$58,887

$41,513

Average Income

$61,599

Median Household Income

12.46%

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)