Columbia is located in Marion County, Iowa. Columbia has a 2025 population of 1,031 . Columbia 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 Columbia is $176,329 with a poverty rate of 18.5%. The median age in Columbia is 32.9 years: 42 years for males, and 30.8 years for females. For every 100 females there are 84.8 males.
Data after 2023 is projected based on recent change
The racial composition of Columbia includes 98.74% White, and smaller percentages for other race, Two or more races and multiracial populations.
White (98.74%)
Other race (0.78%)
Two or more races (0.48%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,018 | 98.74% |
| Other race | 8 | 0.78% |
| Two or more races | 5 | 0.48% |
Married
Widowed
Divorced
Separated
Never Married
Columbia's average per capita income is $41,202. Household income levels show a median of $69,901. The poverty rate stands at 18.5%.
Name | Median | Mean |
|---|---|---|
| Married Families | $95,500 | - |
| Families | $85,850 | $220,168 |
| Households | $69,901 | $176,329 |
| Non Families | $51,250 | $55,249 |
Average Income
Median Household Income
Poverty Rate