Marietta Flag

Marietta

County:
Marshall County
County Seat:
No
Area (mi²):
36.414
State:
Iowa

Marietta is located in Marshall County, Iowa. Marietta has a 2025 population of 216 . Marietta is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The average household income in Marietta is $108,360 with a poverty rate of 0%. The median age in Marietta is 48.1 years: 56.2 years for males, and 44.2 years for females. For every 100 females there are 81.5 males.

216
Total Population
6
Density (mi²)

Marietta Population

Marietta Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Marietta includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

White (100%)

Race
Population
Percentage (of total)
White216100%

Marietta Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marietta's average per capita income is $66,875. Household income levels show a median of $98,942. The poverty rate stands at 0%.

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
Families$128,750$120,088
Married Families$128,750-
Households$98,942$108,360
Non Families--

$66,875

Average Income

$98,942

Median Household Income

0%

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)