Plessis is a CDP located in Jefferson County, New York. Plessis has a 2025 population of 292 . Plessis is currently growing at a rate of 3.18% annually but its population has decreased by -21.08% since the most recent census, which recorded a population of 370 in 2020.
The average household income in Plessis is $123,102 with a poverty rate of 0%. The median age in Plessis is 37 years: 54.1 years for males, and 31.4 years for females. For every 100 females there are 188.3 males.
Data after 2023 is projected based on recent change
The racial composition of Plessis includes 86.13% White, and smaller percentages for and multiracial populations.
White (86.13%)
Two or more races (13.87%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 149 | 86.13% |
| Two or more races | 24 | 13.87% |
Married
Widowed
Divorced
Separated
Never Married
Plessis' average per capita income is $0. Household income levels show a median of $150,056. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Non Families | $150,972 | $143,604 |
| Households | $150,056 | $123,102 |
| Families | $85,694 | $88,933 |
| Married Families | $84,286 | - |
Average Income
Median Household Income
Poverty Rate