Lake Seneca Flag

Lake Seneca

County:
Williams County
County Seat:
No
Area (mi²):
1.42
State:
Ohio

Lake Seneca is a CDP located in Williams County, Ohio. Lake Seneca has a 2025 population of 675. Lake Seneca is currently growing at a rate of 2.12% annually and its population has increased by 2.9% since the most recent census, which recorded a population of 656 in 2020.

The average household income in Lake Seneca is $97,165 with a poverty rate of 5.49%.The median age in Lake Seneca is 52.8 years: 55.3 years for males, and 52.8 years for females.

675
Total Population
475
Density (mi²)
14 2.12%
Growth

Lake Seneca Population

Lake Seneca Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Lake Seneca includes 97.49% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White54497.49%
Two or more races142.51%

Lake Seneca Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lake Seneca's average per capita income is $46,186. Household income levels show a median of $83,839. The poverty rate stands at 5.49%.

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
Families$85,185$103,781
Married Families$84,643-
Households$83,839$97,165
Non Families$64,500$63,356

$46,186

Average Income

$83,839

Median Household Income

5.49%

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)