RoadsideThoughts
A Gazetteer for the United States and Canada
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Welcome to Central Islip ...

Central Islip is located in Suffolk County<1>.

While we don't have a date for the founding of Central Islip, you might consider that their post office opened in 1874.

Central Islip is 80 feet [24 m] above sea level.<2>.

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

Area Codes for Central Islip: 631 & 934<3>

The ZIP code for Central Islip: 11722<4>

Communities near Central Islip ...

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

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

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

We also have a detailed list of newspapers that have been published in the area around Central Islip. Our list includes 5 papers. See our Newspapers Page for Central Islip.

TripAdvisor Tourism Pages for Central Islip ...

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

Adding Central Islip to Our Gazetteer ...

We originally found mention of Central Islip 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 Central Islip was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>

From that list, the Central Islip post office opened in 1874.

For more details, see References and Mentions for Central Islip.

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 Central Islip - 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 Central Islip area will be assigned with one of these codes: 631 or 934. As a result, placing a call in the Central Islip area will require 10-digit dialing (where you enter both the area code and then the phone number).
<4>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a community (such as Central Islip). When looking for a ZIP Code, whether Central Islip or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<5>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<6>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/