Martinsburg Flag

Martinsburg

County:
Keokuk County
County Seat:
No
Area (mi²):
0.374
State:
Iowa

Martinsburg is a city located in Keokuk County, Iowa. Martinsburg has a 2025 population of 108 . Martinsburg is currently declining at a rate of -0.92% annually and its population has decreased by -1.82% since the most recent census, which recorded a population of 110 in 2020.

The average household income in Martinsburg is $48,574 with a poverty rate of 32.29%. The median age in Martinsburg is 46.4 years: 47 years for males, and 44.5 years for females. For every 100 females there are 45.5 males.

108
Total Population
289
Density (mi²)
-1 -0.92%
Growth

Martinsburg Population

Martinsburg Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Martinsburg includes 92.71% White, and smaller percentages for and multiracial populations.

Population by Race

White (92.71%)

Two or more races (7.29%)

Race
Population
Percentage (of total)
White8992.71%
Two or more races77.29%

Martinsburg Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Martinsburg's average per capita income is $31,250. Household income levels show a median of $43,281. The poverty rate stands at 32.29%.

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$43,958$42,088
Married Families$43,542-
Households$43,281$48,574
Non Families$31,250$41,410

$31,250

Average Income

$43,281

Median Household Income

32.29%

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)