Thayer is a city located in Union County, Iowa. Thayer has a 2025 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 average household income in Thayer is $61,042 with a poverty rate of 0%. The median age in Thayer is 13 years: 29.3 years for males, and 10.6 years for females.
Data after 2023 is projected based on recent change
The racial composition of Thayer includes 48% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.
Two or more races
White
Black or African American
Native American
Asian
Native Hawaiian or Pacific Islander
Other race
Race | Population | Percentage (of total) |
|---|---|---|
| Two or more races | 26 | 52% |
| White | 24 | 48% |
| Black or African American | 0 | 0% |
| Native American | 0 | 0% |
| Asian | 0 | 0% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
| Other race | 0 | 0% |
Married
Widowed
Divorced
Separated
Never Married
Thayer's average per capita income is $43,750. Household income levels show a median of $52,500. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Families | $63,750 | $69,638 |
| Married Families | $56,250 | - |
| Households | $52,500 | $61,042 |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate