Jeff is located in Oregon County, Missouri. Jeff has a 2025 population of 440. Jeff 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 Jeff is $78,672 with a poverty rate of 1.59%. The median age in Jeff is 50.5 years: 48.1 years for males, and 68 years for females.
Data after 2023 is projected based on recent change
The racial composition of Jeff includes 98.86% White, and smaller percentages for Two or more races and multiracial populations.
White (98.9%)
Two or more races (1.1%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 435 | 98.86% |
| Two or more races | 5 | 1.14% |
Married
Widowed
Divorced
Separated
Never Married
Jeff's average per capita income is $42,558. Household income levels show a median of $68,036. The poverty rate stands at 1.59%.
Name | Median | Mean |
|---|---|---|
| Households | $68,036 | $78,672 |
| Married Families | $47,105 | - |
| Families | - | $84,180 |
| Non Families | - | $32,707 |
Average Income
Median Household Income
Poverty Rate