Grand River is located in Decatur County, Iowa. Grand River has a 2025 population of 324 . Grand River 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 Grand River is $56,800 with a poverty rate of 20.37%. The median age in Grand River is 40.5 years: 43.6 years for males, and 35.7 years for females. For every 100 females there are 111.8 males.
Data after 2023 is projected based on recent change
The racial composition of Grand River includes 89.51% White, and smaller percentages for and multiracial populations.
White (89.51%)
Two or more races (10.49%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 290 | 89.51% |
| Two or more races | 34 | 10.49% |
Married
Widowed
Divorced
Separated
Never Married
Grand River's average per capita income is $46,750. Household income levels show a median of $48,594. The poverty rate stands at 20.37%.
Name | Median | Mean |
|---|---|---|
| Married Families | $84,375 | - |
| Families | $51,875 | $71,931 |
| Households | $48,594 | $56,800 |
| Non Families | $40,893 | $37,378 |
Average Income
Median Household Income
Poverty Rate