South Ilion Flag

South Ilion

County:
Herkimer County
County Seat:
No
Area (mi²):
0.439
State:
New York

South Ilion is a CDP located in Herkimer County, New York. South Ilion has a 2025 population of 246. South Ilion is currently growing at a rate of 6.96% annually and its population has increased by 38.2% since the most recent census, which recorded a population of 178 in 2020.

The average household income in South Ilion is $125,569 with a poverty rate of 39.39%. The median age in South Ilion is 30.2 years: 9.6 years for males, and 31 years for females.

246
Total Population
560
Density (mi²)
16 6.96%
Growth

South Ilion Population

South Ilion Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of South Ilion includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

White (100.0%)

Race
Population
Percentage (of total)
White198100%

South Ilion Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Ilion's average per capita income is $90,625. Household income levels show a median of $100,481. The poverty rate stands at 39.39%.

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$100,481$125,569
Families-$34,929
Married Families--
Non Families--

$90,625

Average Income

$100,481

Median Household Income

39.39%

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)