Lake Ronkonkoma, New York Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Lake Ronkonkoma, New York is 18,289 as of the 2023 American Community Survey, making it the 98th-largest city in New York. The median household income is $102,608, the median home value is $484,700, and the median age is 43.1.
18,289
Population
4032
People / sq mi
$102,608
Median Income
$484,700
Median Home Value
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Lake Ronkonkoma covers 4.5 sq mi of land at 4032 people per square mile.
About Lake Ronkonkoma, NY
Lake Ronkonkoma is distinguished by its share of foreign-born residents, 3.9% of the population. Lake Ronkonkoma is a city in New York with a population of 18,289.
The typical household earns $102,608 a year, above the US median of $78,538. The poverty rate is 5.1%, below the national 12.4%. The median home value is $484,700, with typical rent around $1,906.
Roughly 31.9% of adults have a bachelor’s, below the national 35.0%. About 9.7% of the workforce is home-based, below the national 14.0%, and the average commute runs about 29 minutes each way.
Race & Ethnicity
| White | 78.1% |
| Black or African American | 3.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Economy & Income
$102,608
Median Household Income
$47,691
Per Capita Income
5.1%
Poverty Rate
4.4%
Unemployment Rate
Housing
$484,700
Median Home Value
$1,906
Median Rent
70.3%
Owner-Occupied
Education
92.9%
High School+
31.9%
Bachelor's+
Commute
3.9%
Drive Alone
77.4%
Public Transit
9.7%
Work From Home
29.3 min
Avg Commute
Community Profile
3.9%
Foreign Born
79.1%
Non-English at Home
4.4%
Veterans
12.0%
With Disability
95.8%
Health Insurance
95.7%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 23.4% |
| Finance, Insurance & Real Estate | 9.9% |
| Information | 8.7% |
| Education, Health Care & Social Services | 7.1% |
| Retail Trade | 6.9% |
| Manufacturing | 6.6% |
| Construction | 5.5% |
| Public Administration | 5.1% |
| Arts, Entertainment & Food Services | 3.8% |
| Transportation & Warehousing | 2.4% |
| Agriculture & Mining | 0.1% |
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Frequently Asked Questions
Lake Ronkonkoma, New York has a population of 18,289 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 98th-largest city in New York.
The median household income in Lake Ronkonkoma, New York is $102,608, with 5.1% of residents living below the federal poverty level.
The median home value in Lake Ronkonkoma, New York is $484,700, with median monthly rent at $1,906 and a homeownership rate of 70.3%.
The median age in Lake Ronkonkoma, New York is 43.1 years. The population is 48.7% male and 51.3% female.
Lake Ronkonkoma Cdp, NY Climate
Lake Ronkonkoma Cdp, NY has an average annual temperature of 11.4°C (53°F) and receives about 1045 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
11.4°C
Avg Temp
1045
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -1° / 31° | 90 mm |
| February | 0° / 32° | 77 mm |
| March | 5° / 40° | 101 mm |
| April | 10° / 49° | 97 mm |
| May | 15° / 59° | 88 mm |
| June | 20° / 68° | 75 mm |
| July | 23° / 74° | 74 mm |
| August | 23° / 73° | 95 mm |
| September | 19° / 66° | 80 mm |
| October | 13° / 55° | 80 mm |
| November | 8° / 46° | 96 mm |
| December | 2° / 36° | 92 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Lake Ronkonkoma Cdp, NY
The most comfortable months to visit Lake Ronkonkoma Cdp, NY are typically June, July and September, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 28°C high). The coldest is January (near -5°C low). March is usually the wettest month.
Where to stay near Lake Ronkonkoma
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.