Smithfield is located in Fayette County, Iowa. Smithfield has a 2025 population of 422 . Smithfield 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 Smithfield is $137,776 with a poverty rate of 19.43%. The median age in Smithfield is 34.8 years: 34.3 years for males, and 39.6 years for females. For every 100 females there are 117.5 males.
Data after 2023 is projected based on recent change
The racial composition of Smithfield includes 98.82% White, and smaller percentages for other race and multiracial populations.
White (98.82%)
Other race (1.18%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 417 | 98.82% |
| Other race | 5 | 1.18% |
Married
Widowed
Divorced
Separated
Never Married
Smithfield's average per capita income is $53,704. Household income levels show a median of $0. The poverty rate stands at 19.43%.
Name | Median | Mean |
|---|---|---|
| Families | $195,142 | $145,600 |
| Married Families | $87,404 | - |
| Non Families | $41,250 | $79,300 |
| Households | - | $137,776 |
Average Income
Median Household Income
Poverty Rate