Marne is a city located in Cass County, Iowa. Marne has a 2025 population of 112. Marne is currently growing at a rate of 0.9% annually and its population has increased by 2.75% since the most recent census, which recorded a population of 109 in 2020.
The average household income in Marne is $53,706 with a poverty rate of 23.48%.The median age in Marne is 45.1 years: 45.1 years for males, and 47.2 years for females.
Data after 2023 is projected based on recent change
The racial composition of Marne includes 98.48% White, and smaller percentages for Two or more races and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 130 | 98.48% |
| Two or more races | 2 | 1.52% |
Married
Widowed
Divorced
Separated
Never Married
Marne's average per capita income is $41,818. Household income levels show a median of $52,917. The poverty rate stands at 23.48%.
Name | Median | Mean |
|---|---|---|
| Married Families | $93,750 | - |
| Families | $66,250 | $73,464 |
| Households | $52,917 | $53,706 |
| Non Families | - | $16,848 |
Average Income
Median Household Income
Poverty Rate