Ronkonkoma, New York Demographics & Population 2026
During the 2020–2024 ACS period, Ronkonkoma, New York had a total population of 18,709, the 97th largest community in New York, with a median household income of $121,673, which is 42% higher than the state average. The poverty rate is 3.3%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 42% above the state average — one of the wealthiest communities in New York.
- An exceptionally low poverty rate of 3.3% — among the lowest in New York.
Ronkonkoma Quick Facts
How Ronkonkoma 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 | 18,368 | 18,709 | +1.9% |
| Median household income | $125,534 | $121,673 | -3.1% |
| Median home value | $467,600 | $489,100 | +4.6% |
How Ronkonkoma 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
Moderate diversity with one or two groups making up the majority.
State average: 65 | National average: 61
Education
Educational Attainment (Adults 25+)
Ronkonkoma Rankings in New York
Explore New York Rankings
Other Cities in Suffolk County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| West Babylon | 43,570 | $129,519 | 5.9% | $531,900 |
| Coram | 39,539 | $105,220 | 7.5% | $452,100 |
| Central Islip | 38,373 | $113,707 | 9.2% | $436,400 |
| Commack | 36,558 | $169,792 | 4.2% | $678,200 |
| Huntington Station | 32,601 | $135,477 | 7.2% | $578,000 |
| Centereach | 31,839 | $132,240 | 5.3% | $514,800 |
| Bay Shore | 31,683 | $105,618 | 10.2% | $492,200 |
| Shirley | 28,375 | $112,788 | 6.5% | $424,900 |
| Deer Park | 27,990 | $137,105 | 3.4% | $543,500 |
| Lindenhurst | 27,142 | $130,128 | 5.7% | $521,500 |
Cities Similar to Ronkonkoma
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Roosevelt | 18,885 | $135,069 | $477,400 | 28.7% | 3.8% |
| Mamaroneck | 19,826 | $120,000 | $717,200 | 56.6% | 10.7% |
| Nanuet | 19,799 | $117,167 | $532,500 | 46.6% | 9.3% |
| Islip | 17,362 | $120,909 | $542,200 | 34.3% | 5.7% |
| Holtsville | 19,344 | $133,679 | $520,600 | 34.8% | 4.1% |
Population Overview
Ronkonkoma is a small city located in New York, within Suffolk County. The total population is 18,709. It ranks as the 97th most populous out of 1,289 Census-designated places in New York.
Age Demographics
The median age in Ronkonkoma is 38.2 years. This is 4% lower than the state median of 39.8 years.
Economy, Income & Housing
The median household income in Ronkonkoma is $121,673. This is 42% higher than the state median of $85,974. It is also 51% higher than the national median of $80,734. The poverty rate stands at 3.3%. This is 76% lower than the state poverty rate of 14.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 7.7%. This is 21% higher than the state rate of 6.4%. The median home value is $489,100. Housing costs are 15% higher than the state median of $423,800. The home-value-to-income ratio is 4.0x. 81.9% of occupied housing units are owner-occupied. This homeownership rate is 51% higher than the state average of 54.4%.
Race & Ethnicity
The largest racial or ethnic group in Ronkonkoma is White (non-Hispanic), making up 62.4% of the population. Hispanic or Latino residents account for 24.6%. The Black or African American population (5.3%) is well below the state average of 13.4%.
Education
33.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 17% 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 93.3%. Notably, 15.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Ronkonkoma, 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.
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Frequently Asked Questions
What is the population of Ronkonkoma, New York?
Ronkonkoma, New York has a population of 18,709 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Ronkonkoma, NY?
The median household income in Ronkonkoma is $121,673, which is 51% higher than the national median of $80,734.
What is the poverty rate in Ronkonkoma, NY?
The poverty rate in Ronkonkoma is 3.3%. This means approximately 622 residents live below the federal poverty line.
What is the racial makeup of Ronkonkoma, New York?
Ronkonkoma's population is 62.4% White, 5.3% Black, 24.6% Hispanic/Latino, and 6.1% Asian.
What is the median home value in Ronkonkoma, NY?
The median home value in Ronkonkoma is $489,100. The home-value-to-income ratio is 4.0x.
How educated is Ronkonkoma, New York?
33.5% of adults (25+) in Ronkonkoma hold a bachelor's degree or higher, and 15.1% hold a graduate or professional degree.