Johnson is located in Plymouth County, Iowa. Johnson has a 2025 population of 123 . Johnson 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 Johnson is $80,288 with a poverty rate of 8.94%. The median age in Johnson is 36.8 years: 36.8 years for males, and 36.9 years for females. For every 100 females there are 132.1 males.
Data after 2023 is projected based on recent change
The racial composition of Johnson includes 73.17% White, 13.01% Asian, and smaller percentages for and multiracial populations.
White (73.17%)
Two or more races (13.82%)
Asian (13.01%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 90 | 73.17% |
| Two or more races | 17 | 13.82% |
| Asian | 16 | 13.01% |
Married
Widowed
Divorced
Separated
Never Married
Johnson's average per capita income is $72,955. Household income levels show a median of $98,750. The poverty rate stands at 8.94%.
Name | Median | Mean |
|---|---|---|
| Married Families | $121,818 | - |
| Families | $120,455 | $106,384 |
| Households | $98,750 | $80,288 |
| Non Families | - | $30,104 |
Average Income
Median Household Income
Poverty Rate