Jefferson Flag

Jefferson

County:
Greene County
County Seat:
Yes
Area (mi²):
35.898
State:
Iowa

Jefferson is located in Greene County, Iowa. Jefferson has a 2025 population of 121 . It is also the county seat of Greene County . Jefferson is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The average household income in Jefferson is $77,920 with a poverty rate of 2.48%. The median age in Jefferson is 44.5 years: 51.5 years for males, and 39.3 years for females. For every 100 females there are 72.9 males.

121
Total Population
3
Density (mi²)

Jefferson Population

Jefferson Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (100%)

Race
Population
Percentage (of total)
White121100%

Jefferson Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Jefferson's average per capita income is $50,625. Household income levels show a median of $72,188. The poverty rate stands at 2.48%.

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$93,056$89,426
Married Families$93,056-
Households$72,188$77,920
Non Families$41,250$42,355

$50,625

Average Income

$72,188

Median Household Income

2.48%

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)