Jefferson Flag

Jefferson

County:
Greene County
County Seat:
Yes
Area (mi²):
24.249
State:
Iowa

Jefferson is located in Greene County, Iowa. Jefferson has a 2025 population of 3,312. 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 $106,467 with a poverty rate of 3.24%.The median age in Jefferson is 37.2 years: 34.4 years for males, and 41.2 years for females.

3.3K
Total Population
137
Density (mi²)
0 0%
Growth

Jefferson Population

Jefferson Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Jefferson includes 95.98% White, and smaller percentages for Two or more races, Asian, other race, Native American and multiracial populations.

Population by Race

White (96.0%)

Two or more races (2.3%)

Asian (1.4%)

Other race (0.2%)

Native American (0.0%)

Race
Population
Percentage (of total)
White3,17995.98%
Two or more races772.32%
Asian471.42%
Other race80.24%
Native American10.03%

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 $59,097. Household income levels show a median of $92,317. The poverty rate stands at 3.24%.

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$112,266-
Families$105,417$114,631
Households$92,317$106,467
Non Families$65,039$76,130

$59,097

Average Income

$92,317

Median Household Income

3.24%

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)