South Ilion, New York Demographics & Population 2026
During the 2020–2024 ACS period, South Ilion, New York had a total population of 195, the 1219th largest community in New York, with a median household income of $103,333, which is 20% higher than the state average. The poverty rate is 40.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- More than 1 in 4 residents live below the poverty line (40.0%), well above the national average of 12.4%.
- Housing is very affordable with a home-value-to-income ratio of just 0.8x.
- Unemployment rate of 12.0% is notably above the national average.
South Ilion Quick Facts
How South Ilion Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 198 | 195 | -1.5% |
| Median household income | $100,481 | $103,333 | +2.8% |
| Median home value | $80,500 | $78,700 | -2.2% |
How South Ilion Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 65 | National average: 61
Education
Educational Attainment (Adults 25+)
South Ilion Rankings in New York
Explore New York Rankings
Other Cities in Herkimer County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Ilion | 7,593 | $62,843 | 14.5% | $108,700 |
| Herkimer | 7,566 | $48,529 | 26.4% | $133,200 |
| Little Falls | 4,550 | $53,544 | 24.3% | $105,700 |
| Mohawk | 2,520 | $72,813 | 15.1% | $124,600 |
| Frankfort | 2,503 | $50,909 | 11.2% | $128,200 |
| Dolgeville | 1,874 | $67,740 | 10.9% | $115,200 |
| West Winfield | 837 | $76,667 | 10.4% | $151,300 |
| East Herkimer | 659 | $86,154 | 4.9% | $128,000 |
| Middleville | 652 | $84,125 | 7.7% | $163,100 |
| Old Forge | 574 | $75,076 | 3.7% | $322,800 |
Cities Similar to South Ilion
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Wadsworth | 196 | N/A | N/A | 0.0% | 89.3% |
| Windham | 184 | N/A | $244,500 | 42.6% | 2.2% |
| Blodgett Mills | 212 | N/A | $135,000 | 7.8% | 11.3% |
| Hortonville | 205 | $112,910 | $184,800 | 41.2% | 3.9% |
| Jefferson | 177 | N/A | $166,700 | 28.0% | 14.1% |
A note before these figures: with a population of 195, South Ilion's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
South Ilion is a small community located in New York, within Herkimer County. The total population is 195. It ranks as the 1219th most populous out of 1,289 Census-designated places in New York.
Age Demographics
The median age in South Ilion is 30.2 years. This is 24% lower than the state median of 39.8 years. With 43.6% of the population under 18, South Ilion has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in South Ilion is $103,333. This is 20% higher than the state median of $85,974. It is also 28% higher than the national median of $80,734. The poverty rate stands at 40.0%. This is 186% higher than the state poverty rate of 14.0%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 12.0%. This is 89% higher than the state rate of 6.4%. The median home value is $78,700. Housing costs are 81% lower than the state median of $423,800. With a home-value-to-income ratio of just 0.8x, South Ilion is one of the most affordable housing markets in the area. 83.9% of occupied housing units are owner-occupied. This homeownership rate is 54% higher than the state average of 54.4%.
Race & Ethnicity
Every resident counted in South Ilion was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.
Education
15.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 62% lower than the state rate of 40.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 75.4%.
Data Sources & Methodology
All demographic data for South Ilion, New York is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,289 Census-designated places in New York. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all New York city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of South Ilion, New York?
South Ilion, New York has a population of 195 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in South Ilion, NY?
The median household income in South Ilion is $103,333, which is 28% higher than the national median of $80,734.
What is the poverty rate in South Ilion, NY?
The poverty rate in South Ilion is 40.0%. This means approximately 78 residents live below the federal poverty line.
What is the racial makeup of South Ilion, New York?
South Ilion's population is 100.0% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in South Ilion, NY?
The median home value in South Ilion is $78,700. The home-value-to-income ratio is 0.8x.
How educated is South Ilion, New York?
15.4% of adults (25+) in South Ilion hold a bachelor's degree or higher, and 9.1% hold a graduate or professional degree.