Marengo Flag

Marengo

County:
Iowa County
County Seat:
Yes
Area (mi²):
2.115
State:
Iowa

Marengo is a city located in Iowa County, Iowa. Marengo has a 2025 population of 2,381. It is also the county seat of Iowa County. Marengo is currently declining at a rate of -0.46% annually and its population has decreased by -2.34% since the most recent census, which recorded a population of 2,438 in 2020.

The average household income in Marengo is $67,273 with a poverty rate of 12.76%.The median age in Marengo is 38.4 years: 35.8 years for males, and 40.1 years for females.

2.4K
Total Population
1,126
Density (mi²)
-11 -0.46%
Growth

Marengo Population

Marengo Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Marengo includes 94.4% White, and smaller percentages for Two or more races, Black or African American, other race, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White2,66594.4%
Two or more races682.41%
Black or African American461.63%
Other race331.17%
Native American110.39%

Marengo Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marengo's average per capita income is $41,005. Household income levels show a median of $58,125. The poverty rate stands at 12.76%.

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$83,333-
Families$68,807$77,056
Households$58,125$67,273
Non Families$37,778$46,735

$41,005

Average Income

$58,125

Median Household Income

12.76%

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)