Ronkonkoma, New York

Ronkonkoma is a hamlet and census‑designated place largely within the Town of Islip, with a small portion extending into Brookhaven, Suffolk County, NY. It had a 2020 population of approximately 18,955 residents, estimated at ~18,400 by 2023, with a median age around 38.
Lake Ronkonkoma: Nature & Legend
- Anchored by Lake Ronkonkoma, the largest freshwater lake on Long Island, measuring 243 acres and reaching depths up to 95 ft.
- A kettle lake formed by glacial action, its Algonquian name translates as “boundary fishing place,” reflecting its Native American roots and shared tribal shores .
- Once a prominent early 20th-century resort destination, the lakeside drew city vacationers touting its “healing waters.” Today, it continues to attract visitors for fishing, festivals, and recreation – though also shrouded in local folklore involving drownings and legends.
Population & Community
- Demographics: ~74% White, ~6.8% Asian, ~5.3% other race, ~5.1% Black, and ~8.5% multiracial.
- Median household income stands at ~$125,500, with a stable community identity and a mix of longtime and new residents drawn to its lakefront charm and commuter access.
Transportation & Transit Hub
- Ronkonkoma LIRR Station serves as the eastern terminus of the electrified Ronkonkoma Branch, with transfers to the Greenport Branch. It ranks among Long Island’s busiest stations and supports ~15,000 passengers daily, offering frequent commutes to Penn Station in about 1 hour 20 minutes.
- The station anchors the planned Ronkonkoma HUB, a transit‑oriented development integrating LIRR service, parking garages, and a mixed‑use town center being built adjacent to MacArthur Airport.
Economy, Revitalization & Recreation
- The downtown “Hamlet” area along Hawkins Avenue is part of a revitalization initiative to restore its historic Main Street corridor and enhance walkability and small businesses.
- Lake Ronkonkoma Town Beach, parks, the Lt. Michael P. Murphy Memorial Park, and seasonal events attract lake‑side visitors year-round.
- Long Island MacArthur Airport is located just west of the transit hub, offering East Coast and Florida service while anchoring local economic growth.
Hamlet Snapshot
Feature | Details |
---|---|
Population | ~18,400 (2023), median age ~38 |
Diversity | ~74% White; ~6.8% Asian; ~5% Black; ~8.5% multiracial |
Income | Median household ~$125.5K |
Lake | Largest freshwater lake on Long Island (243 acres; up to 95 ft deep) |
Transit Hub | LIRR terminus with ~15K daily riders; Ronkonkoma HUB development |
Economy & Retail | Downtown revitalization via DRI, Main Street shops |
Recreation | Town beach, parks, lake festivals, boating |
Airport | Long Island MacArthur Airport nearby |
History & Culture | Former resort destination, Native American heritage, lake legends |
Ronkonkoma emerges as a pivotal central Long Island hub – melding the natural allure of its iconic lake with strategic transit access, ongoing redevelopment, and a live-work community tied both to its heritage and future growth.