Thayer Flag

Thayer

County:
Union County
County Seat:
No
Area (mi²):
0.143
State:
Iowa

Thayer is a city located in Union County, Iowa. Thayer has a 2026 population of 47. Thayer is currently declining at a rate of 0% annually and its population has decreased by -4.08% since the most recent census, which recorded a population of 49 in 2020.

The median household income in Thayer is $55,000 with a poverty rate of 4.44%. The median age in Thayer is 29.5 years: 43.5 years for males, and 15.5 years for females. For every 100 females there are 114.3 males.

47
Total Population
330
Density (mi²)

Thayer Population

Thayer Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20264700%
202547-1-2.08%
20244800%
20234800%
202248-1-2.04%
20214900%
20204900%
20195800%
201858-1-1.69%
20175900%
20165900%
201559-1-1.67%
20146000%
20136000%
20126000%
20116011.69%
20106000%

Median Age

Overall: 29.5 years
Female: 15.5 years
Male: 43.5 years

Thayer Adults

There are 27 adults, (6 of whom are seniors) in Thayer.

Sex Ratio

Female: 21 (46.7%)
Male: 24 (53.3%)

Demographics

The racial composition of Thayer includes 73.33% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White3373.33%
Two or more races1226.67%
Race
Population ↓
Percentage (of total)
White3373.33%
Two or more races1226.67%

Thayer Marital Status

Economics and Income Statistics

Thayer 's average per capita income is $0. Household income levels show a median of $55,000. The poverty rate stands at 4.44%.

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$66,250$69,590
Married Families$59,375-
Households$55,000$62,600
Non Families--

$0

Average Income

$55,000

Median Household Income

4.44%

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)