Jefferson Flag

Jefferson

County:
Greene County
County Seat:
Yes
Area (mi²):
35.732
State:
Iowa

Jefferson is located in Greene County, Iowa. Jefferson has a 2025 population of 737. 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 $126,023 with a poverty rate of 5.04%. The median age in Jefferson is 41.8 years: 41.5 years for males, and 43.5 years for females.

737
Total Population
21
Density (mi²)
0 null
Growth

Jefferson Population

Jefferson Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Jefferson includes 96.2% White, and smaller percentages for other race and multiracial populations.

Population by Race

White (96.2%)

Two or more races (3.1%)

Other race (0.7%)

Race
Population
Percentage (of total)
White70996.2%
Two or more races233.12%
Other race50.68%

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 $53,648. Household income levels show a median of $81,071. The poverty rate stands at 5.04%.

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
Married Families$125,000-
Families$116,875$141,707
Households$81,071$126,023
Non Families$53,750$93,152

$53,648

Average Income

$81,071

Median Household Income

5.04%

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)