Lake Ronkonkoma, New York Demographics & Population 2026
During the 2020–2024 ACS period, Lake Ronkonkoma, New York had a total population of 18,221, the 100th largest community in New York, with a median household income of $101,633, which is 18% higher than the state average. The poverty rate is 7.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Lake Ronkonkoma Quick Facts
How Lake 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 | 18,289 | 18,221 | -0.4% |
| Median household income | $102,608 | $101,633 | -1.0% |
| Median home value | $484,700 | $525,000 | +8.3% |
How Lake 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+)
Lake 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 Lake Ronkonkoma
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Ronkonkoma | 18,709 | $121,673 | $489,100 | 33.5% | 3.3% |
| Mastic Beach | 16,735 | $111,493 | $357,200 | 24.5% | 21.2% |
| Islip | 17,362 | $120,909 | $542,200 | 34.3% | 5.7% |
| Nanuet | 19,799 | $117,167 | $532,500 | 46.6% | 9.3% |
| Bethpage | 17,123 | $122,257 | $605,900 | 43.4% | 5.6% |
Population Overview
Lake Ronkonkoma is a small city located in New York, within Suffolk County. The total population is 18,221. It ranks as the 100th most populous out of 1,289 Census-designated places in New York.
Age Demographics
The median age in Lake Ronkonkoma is 42.6 years. This is 7% higher than the state median of 39.8 years.
Economy, Income & Housing
The median household income in Lake Ronkonkoma is $101,633. This is 18% higher than the state median of $85,974. It is also 26% higher than the national median of $80,734. The poverty rate stands at 7.8%. This is 44% lower than the state poverty rate of 14.0%. The unemployment rate is 6.2%. This is 3% lower than the state rate of 6.4%. The median home value is $525,000. Housing costs are 24% higher than the state median of $423,800. The home-value-to-income ratio is 5.2x. 69.6% of occupied housing units are owner-occupied. This homeownership rate is 28% higher than the state average of 54.4%.
Race & Ethnicity
The largest racial or ethnic group in Lake Ronkonkoma is White (non-Hispanic), making up 68.5% of the population. Hispanic or Latino residents account for 14.8%. The Black or African American population (3.4%) is well below the state average of 13.4%.
Education
34.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 15% 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 94.3%.
Data Sources & Methodology
All demographic data for Lake 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 Lake Ronkonkoma, New York?
Lake Ronkonkoma, New York has a population of 18,221 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Lake Ronkonkoma, NY?
The median household income in Lake Ronkonkoma is $101,633, which is 26% higher than the national median of $80,734.
What is the poverty rate in Lake Ronkonkoma, NY?
The poverty rate in Lake Ronkonkoma is 7.8%. This means approximately 1,420 residents live below the federal poverty line.
What is the racial makeup of Lake Ronkonkoma, New York?
Lake Ronkonkoma's population is 68.5% White, 3.4% Black, 14.8% Hispanic/Latino, and 9.0% Asian.
What is the median home value in Lake Ronkonkoma, NY?
The median home value in Lake Ronkonkoma is $525,000. The home-value-to-income ratio is 5.2x.
How educated is Lake Ronkonkoma, New York?
34.1% of adults (25+) in Lake Ronkonkoma hold a bachelor's degree or higher, and 14.7% hold a graduate or professional degree.