The Town Files

Lake Ronkonkoma, New York

Community in Suffolk County · population 18,619 (2020 Census)

Map: where Lake Ronkonkoma is in New YorkLake Ronkonkoma
Median home
$525,000
Household income
$101,633
Jan low / Jul high
25° / 83°
Snow a year
32 in
Tornadoes ≤10 mi since 1950
8
Median age
42.6

Lake Ronkonkoma is a community of 18,619 people in Suffolk County, New York. The median home is worth $525,000, above the typical New York town ($217,700). It ranks more vibrant than 90% of New York towns, more walkable than 86% of New York towns, better transit than 85% of New York towns.

How Lake Ronkonkoma ranks

Percentile among New York towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of New York towns.

Lake Ronkonkoma lifestyle rankings vs other New York townsRetirement20th pctFamilies63rd pctQuiet11th pctWalkability86th pctFirst-time buyers83rd pctYoung professionals56th pctVibrancy90th pctHip & trendy49th pctCollege town76th pctUpscale57th pctVacation homesbottomSeaside characterbottomCyclingbottomTransit85th pctDriving47th pcttypical
The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025).

Homes and cost of living

The median home in Lake Ronkonkoma is worth $525,000, above the typical New York town ($217,700). Homes cost about 5.2 times the median household income of $101,633, which is more affordable than 10% of New York towns. Median rent is $2,170 a month. 69.6% of households own their home.

Lake Ronkonkoma vs Suffolk County vs typical New York townLake RonkonkomaSuffolk CountyTypical New York townHome value$525,000$578,400$217,700Household income$101,633$130,686$80,740Monthly rent$2,170$2,255$1,080
Census ACS 5-year estimates, 2020–2024. "Typical town" = median of New York towns with 500+ people.
HousingLake RonkonkomaTypical New York town
Median home value$525,000$217,700
Median rent$2,170$1,080
Median household income$101,633$80,740
Home value ÷ income5.2×2.8×
Homeownership69.6%79.5%
Median year built19701965
Seasonal / vacation homes0.0%—

Who lives in Lake Ronkonkoma

PeopleLake RonkonkomaTypical New York town
Median age42.643.5
Age 65 and over18.5%20.4%
Under 1819.6%—
Bachelor's degree or higher34.1%30.4%
Below the poverty line7.8%9.3%
Veterans4.5%—
Born outside the U.S.12.4%—
Work from home9.7%11.1%
Average commute28.3 min26.0 min
Homes with broadband92.8%91.1%

Weather in Lake Ronkonkoma

July highs average 82.8°F and January lows 24.6°F. About 46.0 inches of rain and melted snow fall a year, with 31.8 inches of snow (typical New York town: 62.9 in). Expect about 8 days a year at 90°F or hotter and 98 nights at or below freezing.

Lake Ronkonkoma monthly temperatures and precipitation20°30°40°50°60°70°80°90°32° freezing39°25°Jan41°26°Feb48°32°Mar58°41°Apr68°51°May77°61°Jun83°67°Jul81°66°Aug75°59°Sep64°47°Oct54°38°Nov44°30°DecPrecipitation (in) · snow (in) in blue3.710.33.39.44.56.54.10.63.34.03.34.23.64.03.40.54.74.5
NOAA 1991–2020 climate normals: average daily high and low by month; precipitation and snowfall in inches. Temperatures from the Islip Li Macarthur Ap station (2.6 mi away).

Tornadoes, storms and disasters

8 tornadoes have passed within 10 miles of Lake Ronkonkoma since 1950, compared with 5 for the typical New York town. The strongest, an EF1, struck on July 18, 2007 about 7.2 miles from the town center. The most recent was on November 13, 2021.

Tornadoes within 10 miles of Lake Ronkonkoma by decade01950s01960s01970s01980s31990s12000s22010s22020s
NOAA Storm Events Database, tornado tracks (start to end point) passing within 10 miles of the town center, 1950–2026.

Hail of 1 inch or larger has been reported within 10 miles 24 times; the largest was 2.00 inches on May 24, 2004.

Severe weather in Suffolk County since 1996

Storm events in Suffolk County since 1996 by typeHail94Drought32Blizzard42High Wind254Lightning37Heavy Snow161Flash Flood234Strong Wind123
NOAA Storm Events Database, Suffolk County, 1996–2026 (all event types recorded since 1996). 63 deaths recorded.

Suffolk County has been included in 36 federal disaster or emergency declarations since 1953, most often for fire, flood, other.

DeclaredIncidentDeclaration
October 21, 2024Severe StormDR-4839: Severe Storm And Flooding
August 25, 2024Severe StormEM-3613: Severe Storm And Flooding
March 15, 2023SnowstormDR-4694: Severe Winter Storm And Snowstorm
September 5, 2021HurricaneDR-4615: Remnants Of Hurricane Ida
September 2, 2021HurricaneEM-3572: Remnants Of Hurricane Ida

Jobs and pay in Suffolk County

Suffolk County had 679,594 jobs in 2024, paying an average of $79,121 a year. Unemployment was 3.4% in 2023; in Lake Ronkonkoma itself the ACS puts it at 6.2%.

Largest industries in Suffolk CountyHealth care & social assistan…101,618 jobs · $74,532Retail73,514 jobs · $49,088Hotels & restaurants55,158 jobs · $34,481Manufacturing50,905 jobs · $86,925Administrative & support48,759 jobs · $67,574Construction47,437 jobs · $88,821
BLS Quarterly Census of Employment and Wages, 2024, private-sector jobs and average annual pay.
Unemployment rate in Suffolk County, 2000–20230%2%4%6%8%10%2000200420082012201620202023Suffolk 3.4%
Annual average unemployment rate (BLS Local Area Unemployment Statistics via USDA ERS).

Public schools in Lake Ronkonkoma

3 public schools with 3,442 students, about 11.4 students per teacher.

SchoolGradesStudentsPer teacher
SACHEM HIGH SCHOOL NORTH9-121,97912.1
SAMOSET MIDDLE SCHOOL6-88799.7
HIAWATHA SCHOOLK-558412.4

Towns near Lake Ronkonkoma

Lake Ronkonkoma questions

Is Lake Ronkonkoma, New York a good place to retire?

On The Town Files lifestyle rankings, Lake Ronkonkoma scores better for retirees than 20% of New York towns and quieter than 11%. 18.5% of residents are 65 or older (median age 42.6).

How much does a house cost in Lake Ronkonkoma?

The median owner-occupied home in Lake Ronkonkoma is valued at $525,000 (Census ACS 2020–2024), against a median household income of $101,633, so homes cost about 5.2 times income. Median rent is $2,170 a month.

What is the weather like in Lake Ronkonkoma?

July highs average 82.8°F and January lows 24.6°F (NOAA 1991–2020 normals). It gets about 46.0 inches of precipitation a year and 31.8 inches of snow.

Does Lake Ronkonkoma get tornadoes?

8 tornadoes have passed within 10 miles of Lake Ronkonkoma since 1950 (NOAA Storm Events); the strongest was an EF1 on July 18, 2007. The typical New York town has had 5.

How this page is made. Every number comes from public data, matched to Lake Ronkonkoma's Census boundary (GEOID 3640838). Comparisons use the median of New York towns with at least 500 people. Weather comes from the nearest NOAA normals station; storm counts use NOAA tornado tracks within 10 miles of the town center. Data snapshot 2026-11-13.