Welcome to Holtsville ...

Holtsville is located in Suffolk County<1>.

While we don't have a date for the founding of Holtsville, you might consider that their post office opened  in 1860.

Holtsville is 100 feet [30 m] above sea level.<2>.

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

Communities Also Named Holtsville ...

Using our Gazetteer, we found another community named Holtsville - it's located in Tennessee.

For more information, see our Tidbits & Trivia Page for Holtsville.

Communities near Holtsville ...

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

• Lindenhurst
  (19 miles [30.6 km] to the southwest)
  • Jump to our Gazetteer entry for Lindenhurst
  • Lindenhurst is located in Suffolk County
  • Population from the 2020 Census: 26,727 people
  • Jump to TripAdvisor's Tourism page for Lindenhurst <3>
• Mastic Beach
  (10 miles [16.1 km] to the east)
  • Jump to our Gazetteer entry for Mastic Beach
  • Mastic Beach is located in Suffolk County
  • Jump to TripAdvisor's Tourism page for Mastic Beach <3>
• Patchogue
  (3 miles [4.8 km] to the south)
  • Jump to our Gazetteer entry for Patchogue
  • Patchogue is located in Suffolk County
  • Population from the 2020 Census: 12,314 people
  • Jump to TripAdvisor's Tourism page for Patchogue <3>
• Babylon
  (16 miles [25.7 km] to the southwest)
  • Jump to our Gazetteer entry for Babylon
  • Babylon is located in Suffolk County
  • Population from the 2020 Census: 11,942 people
  • Jump to TripAdvisor's Tourism page for Babylon <3>
• Lake Grove
  (4 miles [6.4 km] to the northwest)
  • Note: The GPS coordinates that we are using for Lake Grove have been provided by the GNIS.<4> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Lake Grove
  • Lake Grove is located in Suffolk County
  • Population from the 2020 Census: 11,055 people
  • Jump to TripAdvisor's Tourism page for Lake Grove <3>
• Port Jefferson
  (9 miles [14.5 km] to the north)
  • Jump to our Gazetteer entry for Port Jefferson
  • Port Jefferson is located in Suffolk County
  • Population from the 2020 Census: 8,127 people
  • Jump to TripAdvisor's Tourism page for Port Jefferson <3>
• Northport
  (16 miles [25.7 km] to the west)
  • Note: The GPS coordinates that we are using for Northport have been provided by the GNIS.<4> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Northport
  • Northport is located in Suffolk County
  • Population from the 2020 Census: 7,259 people
  • Jump to TripAdvisor's Tourism page for Northport <3>
• Islandia
  (6 miles [9.7 km] to the west)
  • Note: The GPS coordinates that we are using for Islandia have been provided by the GNIS.<4> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Islandia
  • Islandia is located in Suffolk County
  • Population from the 2020 Census: 3,309 people
  • Jump to TripAdvisor's Tourism page for Islandia <3>
• Brightwaters
  (13 miles [20.9 km] to the southwest)
  • Note: The GPS coordinates that we are using for Brightwaters have been provided by the GNIS.<4> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Brightwaters
  • Brightwaters is located in Suffolk County
  • Population from the 2020 Census: 3,050 people
  • Jump to TripAdvisor's Tourism page for Brightwaters <3>
• Bellport
  (7 miles [11.3 km] to the southeast)
  • Jump to our Gazetteer entry for Bellport
  • Bellport is located in Suffolk County
  • Population from the 2020 Census: 2,040 people
  • Jump to TripAdvisor's Tourism page for Bellport <3>

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 Holtsville. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Holtsville.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Holtsville. 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 Holtsville.

We also have a detailed list of newspapers that have been published in the area around Holtsville. See our Newspapers Page for Holtsville.

TripAdvisor Tourism Pages for Holtsville ...

Looking for more information about Holtsville? 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 Holtsville, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Holtsville.

Adding Holtsville to Our Gazetteer ...

We originally found mention of Holtsville 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 for Holtsville was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<5>

From that list, the Holtsville post office opened in 1860.

We also found Holtsville in the book titled List of Post Offices in the United States (1870).

For more details, see References and Mentions for Holtsville.

Off-the-Road Links ...

Unfortunately, we don't know of a website for Holtsville. If you can help, please contact us through our Feedback Page.

The official website for Suffolk County: www.co.suffolk.ny.us/

The official website for State of New York: https://www.ny.gov/