Thornburg Flag

Thornburg

County:
Keokuk County
County Seat:
No
Area (mi²):
0.199
State:
Iowa

Thornburg is a city located in Keokuk County, Iowa. Thornburg has a 2025 population of 45 . Thornburg is currently declining at a rate of -2.17% annually and its population has decreased by -4.26% since the most recent census, which recorded a population of 47 in 2020.

The average household income in Thornburg is $47,314 with a poverty rate of 13.95%. The median age in Thornburg is 60.5 years: 68.4 years for males, and 53 years for females. For every 100 females there are 115.0 males.

45
Total Population
226
Density (mi²)
-1 -2.17%
Growth

Thornburg Population

Thornburg Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (100%)

Race
Population
Percentage (of total)
White43100%

Thornburg Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Thornburg's average per capita income is $22,813. Household income levels show a median of $39,821. The poverty rate stands at 13.95%.

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$56,250$60,527
Married Families$56,250-
Households$39,821$47,314
Non Families$38,571$32,790

$22,813

Average Income

$39,821

Median Household Income

13.95%

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)