Carbon Flag

Carbon

County:
Adams County
County Seat:
No
Area (mi²):
0.75
State:
Iowa

Carbon is a city located in Adams County, Iowa. Carbon has a 2025 population of 28. Carbon is currently declining at a rate of -3.45% annually and its population has decreased by -12.5% since the most recent census, which recorded a population of 32 in 2020.

The average household income in Carbon is $42,343 with a poverty rate of 28.26%.The median age in Carbon is 68.5 years: 71.1 years for males, and 62.5 years for females.

28
Total Population
37
Density (mi²)
-1 -3.45%
Growth

Carbon Population

Carbon Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

Race
Population
Percentage (of total)
White46100%

Carbon Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Carbon's average per capita income is $21,250. Household income levels show a median of $0. The poverty rate stands at 28.26%.

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$68,393$57,433
Married Families$68,393-
Non Families$19,107$24,931
Households-$42,343

$21,250

Average Income

$0

Median Household Income

28.26%

Poverty Rate

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)