Three Mile Bay Flag

Three Mile Bay

County Seat:
No
Area (mi²):
0.283
State:
New York

Three Mile Bay is a CDP located in Jefferson County, New York. Three Mile Bay has a 2025 population of 22 . Three Mile Bay is currently declining at a rate of -38.89% annually and its population has decreased by -87.91% since the most recent census, which recorded a population of 182 in 2020.

The average household income in Three Mile Bay is $39,316 with a poverty rate of 10%. The median age in Three Mile Bay is 31.5 years: 15.9 years for males, and 34.6 years for females. For every 100 females there are 110.5 males.

22
Total Population
78
Density (mi²)
-14 -38.89%
Growth

Three Mile Bay Population

Three Mile Bay Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Three Mile Bay includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

White (100%)

Race
Population
Percentage (of total)
White40100%

Three Mile Bay Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Three Mile Bay's average per capita income is $33,393. Household income levels show a median of $34,875. The poverty rate stands at 10%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Households$34,875$39,316
Families--
Married Families--
Non Families--

$33,393

Average Income

$34,875

Median Household Income

10%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)