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% 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.

Demographics

The racial composition of Martinsburg includes 92.71% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	89	92.71%
Two or more races	7	7.29%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Martinsburg Marital Status

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