Martensdale Flag

Martensdale

County:
Warren County
County Seat:
No
Area (mi²):
0.38
State:
Iowa

Martensdale is a city located in Warren County, Iowa. Martensdale has a 2026 population of 408. Martensdale is currently declining at a rate of -0.49% annually and its population has decreased by -3.32% since the most recent census, which recorded a population of 422 in 2020.

The median household income in Martensdale is $57,500 with a poverty rate of 10.19%. The median age in Martensdale is 30.3 years: 26.8 years for males, and 39.6 years for females. For every 100 females there are 107.7 males.

408
Total Population
1,074
Density (mi²)
-2 -0.49%
Growth

Martensdale Population

Martensdale Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026408-2-0.49%
2025410-3-0.73%
202441320.49%
2023411-3-0.72%
2022414-3-0.72%
2021417-5-1.18%
202042220.48%
2019464-2-0.43%
2018466-1-0.21%
2017467-1-0.21%
201646830.65%
201546540.87%
2014461-2-0.43%
201346310.22%
2012462-2-0.43%
2011464-1-0.22%
201046600%

Median Age

Overall: 30.3 years
Female: 39.6 years
Male: 26.8 years

Martensdale Adults

There are 414 adults, (104 of whom are seniors) in Martensdale.

Sex Ratio

Female: 274 (48.2%)
Male: 295 (51.8%)

Demographics

The racial composition of Martensdale includes 90.51% White, and smaller percentages for other race, Black or African American, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White51590.51%
Two or more races396.85%
Other race81.41%
Black or African American61.05%
Native American10.18%
Race
Population ↓
Percentage (of total)
White91.58%
Other race81.41%
Two or more races20.35%
Race
Population ↓
Percentage (of total)
White50688.93%
Two or more races376.5%
Black or African American61.05%
Native American10.18%

Martensdale Marital Status

Economics and Income Statistics

Martensdale 's average per capita income is $54,545. Household income levels show a median of $57,500. The poverty rate stands at 10.19%.

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$115,000-
Families$85,714$87,292
Households$57,500$69,582
Non Families$26,250$38,028

$54,545

Average Income

$57,500

Median Household Income

10.19%

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)