Welcome to Lake Ronkonkoma ...

Lake Ronkonkoma is located in Suffolk County<1>.

While we don't have a date for the founding of Lake Ronkonkoma, you might consider that their post office opened in 1905.

A typical abbreviation for Lake Ronkonkoma: Lk. Ronkonkoma

Lake Ronkonkoma is 70 feet [21 m] above sea level.<2>.

Time Zone: Lake Ronkonkoma lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time

Area Codes for Lake Ronkonkoma: 631 & 934<3>

Communities near Lake Ronkonkoma ...

We have created a list of 10 communities that are near Lake Ronkonkoma.

Lindenhurst
(16 miles [25.7 km] to the southwest)
- Lindenhurst is located in Suffolk County
- Jump to our Gazetteer entry for Lindenhurst
- Population from the 2020 Census: 26,727 people
- Jump to TripAdvisor's Tourism page for Lindenhurst <4>
Massapequa Park
(19 miles [30.6 km] to the southwest)
- Massapequa Park is located in Nassau County
- Jump to our Gazetteer entry for Massapequa Park
- Population from the 2020 Census: 17,034 people
- Jump to TripAdvisor's Tourism page for Massapequa Park <4>
Mastic Beach
(15 miles [24.1 km] to the east)
- Mastic Beach is located in Suffolk County
- Jump to our Gazetteer entry for Mastic Beach
- Jump to TripAdvisor's Tourism page for Mastic Beach <4>
Patchogue
(7 miles [11.3 km] to the southeast)
- Patchogue is located in Suffolk County
- Jump to our Gazetteer entry for Patchogue
- Population from the 2020 Census: 12,314 people
- Jump to TripAdvisor's Tourism page for Patchogue <4>
Babylon
(13 miles [20.9 km] to the southwest)
- Babylon is located in Suffolk County
- Jump to our Gazetteer entry for Babylon
- Population from the 2020 Census: 11,942 people
- Jump to TripAdvisor's Tourism page for Babylon <4>
Amityville
(18 miles [29 km] to the southwest)
- Amityville is located in Suffolk County
- Jump to our Gazetteer entry for Amityville
- Population from the 2020 Census: 9,379 people
- Jump to TripAdvisor's Tourism page for Amityville <4>
Farmingdale
(17 miles [27.4 km] to the southwest)
- Farmingdale is located in Nassau County
- Jump to our Gazetteer entry for Farmingdale
- Population from the 2020 Census: 8,981 people
- Jump to TripAdvisor's Tourism page for Farmingdale <4>
Port Jefferson
(8 miles [12.9 km] to the north)
- Port Jefferson is located in Suffolk County
- Jump to our Gazetteer entry for Port Jefferson
- Population from the 2020 Census: 8,127 people
- Jump to TripAdvisor's Tourism page for Port Jefferson <4>
Northport
(12 miles [19.3 km] to the northwest)
- Northport is located in Suffolk County
- Jump to our Gazetteer entry for Northport
- Population from the 2020 Census: 7,259 people
- Jump to TripAdvisor's Tourism page for Northport <4>
Lloyd Harbor
(18 miles [29 km] to the west)
- Lloyd Harbor is located in Suffolk County
- Jump to our Gazetteer entry for Lloyd Harbor
- Population from the 2020 Census: 3,650 people

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Lake Ronkonkoma. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Lake Ronkonkoma.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Lake Ronkonkoma. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Lake Ronkonkoma.

We also have a detailed list of newspapers that have been published in the area around Lake Ronkonkoma. Our list includes 4 papers. See our Newspapers Page for Lake Ronkonkoma.

TripAdvisor Tourism Pages for Lake Ronkonkoma ...

Looking for more information about Lake Ronkonkoma? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

In addition to the Tourism page for Lake Ronkonkoma, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Lake Ronkonkoma.

Adding Lake Ronkonkoma to Our Gazetteer ...

We originally found mention of Lake Ronkonkoma in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found (so far) for Lake Ronkonkoma was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<5>

From that list, the Lake Ronkonkoma post office opened in 1905. The Lake Ronkonkoma post office closed in 1959.

For more details, see References and Mentions for Lake Ronkonkoma.

Footnotes ...

<1>	If you're interested in how the shape of New York's counties, including Suffolk, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>	The elevation is an estimate for the area around Lake Ronkonkoma - it will be higher in some places and lower in others.
<3>	When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 631 code has been Overlayed with the 934 area code. New phone numbers in the Lake Ronkonkoma area will be assigned with one of these codes: 631 or 934. As a result, placing a call in the Lake Ronkonkoma area will require 10-digit dialing (where you enter both the area code and then the phone number).
<4>	While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<5>	A copy of the Blevins & Helbock Post Office list with background information can be found at: https://cblevins.github.io/us-post-offices/data-biography/