Hamilton Flag

Hamilton

County:
Marion County
County Seat:
No
Area (mi²):
0.506
State:
Iowa

Hamilton is a city located in Marion County, Iowa. Hamilton has a 2025 population of 128. Hamilton is currently growing at a rate of 0.79% annually and its population has increased by 2.4% since the most recent census, which recorded a population of 125 in 2020.

The average household income in Hamilton is $66,067 with a poverty rate of 3.45%.The median age in Hamilton is 35.5 years: 37.1 years for males, and 33.5 years for females.

128
Total Population
253
Density (mi²)
1 0.79%
Growth

Hamilton Population

Hamilton Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Hamilton includes 95.4% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White8395.4%
Two or more races44.6%

Hamilton Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Hamilton's average per capita income is $49,167. Household income levels show a median of $70,000. The poverty rate stands at 3.45%.

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$94,375-
Families$70,625$69,031
Households$70,000$66,067
Non Families$45,625$41,757

$49,167

Average Income

$70,000

Median Household Income

3.45%

Poverty Rate

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)