Welcome to Threemile Harbor ...
Threemile Harbor is located in Suffolk County<1>.
A typical abbreviation for Threemile Harbor: Threemile Hbr. (or less commonly used: Threemile Harb. or Threemile Hrbr.)
Threemile Harbor is near sea level<2>.
Time Zone: Threemile Harbor lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time
Area Codes for Threemile Harbor: 631 & 934<3>
Communities near Threemile Harbor ...
We have created a list of 10 communities that are near Threemile Harbor.
- Southampton
(14 miles [22.5 km] to the southwest)
- Jump to our Gazetteer entry for Southampton
- Southampton is located in Suffolk County
- Population from the 2020 Census: 3,313 people
- Southampton has also been known as:
- Southampton village
- Jump to TripAdvisor's Tourism page for Southampton <4>
- Sag Harbor
(6 miles [9.7 km] to the west)
- Greenport
(11 miles [17.7 km] to the northwest)
- East Hampton
(3 miles [4.8 km] to the south)
- North Haven
(6 miles [9.7 km] to the west)
- Jump to our Gazetteer entry for North Haven
- North Haven is located in Suffolk County
- Population from the 2020 Census: 894 people
- Sagaponack
(8 miles [12.9 km] to the southwest)
- Dering Harbor
(9 miles [14.5 km] to the northwest)
- Note: The GPS coordinates that we are using for Dering Harbor have been provided by the GNIS.<5> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Dering Harbor
- Dering Harbor is located in Suffolk County
- Population from the 2020 Census: 11 people
- Jericho
(4 miles [6.4 km] to the south)
- Jump to our Gazetteer entry for Jericho
- Jericho is located in Suffolk County
- Napeague
(5 miles [8 km] to the east)
- Note: The GPS coordinates that we are using for Napeague have been provided by the GNIS.<5> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Napeague
- Napeague is located in Suffolk County
- Wainscott
(6 miles [9.7 km] to the southwest)
- Note: The GPS coordinates that we are using for Wainscott have been provided by the GNIS.<5> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Wainscott
- Wainscott is located in Suffolk County
- Jump to TripAdvisor's Tourism page for Wainscott <4>
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 Threemile Harbor. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Threemile Harbor.
Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Threemile Harbor. 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 Threemile Harbor.
We also have a detailed list of newspapers that have been published in the area around Threemile Harbor. See our Newspapers Page for Threemile Harbor.
TripAdvisor Tourism Pages for Threemile Harbor ...
Looking for more information about Threemile Harbor? 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.
While we are unaware of a Tourism page that is specific to Threemile Harbor, there are neighboring communities that do have Tourism pages. A map of those communities can be found with our TripAdvisor Page for Threemile Harbor.
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 Threemile Harbor - 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 Threemile Harbor area will be assigned with one of these codes: 631 or 934. As a result, placing a call in the Threemile Harbor 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> | The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required. |