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History · Bayport

Bayport’s post office opened in 1870, and 14% of its homes were built before 1940

1 place in town is on the National Register. Below: 6 old photos and papers and maps from 1902 on.

1870first post office
1on the National Register
14%homes built before 1940
6old photos & papers
2famous people
Add an old photoShare a memory
From Bayport’s archive · credits on each photo
Quick answers

How Bayport began

When was Bayport founded?

1870

The Bayport post office opened in 1870, the earliest record of the town by name.

2020 census: 8,609156 years
Founding year: the first Bayport post office (Blevins & Helbock, CC0).

What stands out about Bayport’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

On the map since 19024 editions of the USGS map, 1902 to 1967. Watch Bayport change.
★ What stands out · On the map

Bayport on the map, 1902 to 1967

Every edition of the U.S. Geological Survey’s map of Bayport. Tap a year, or press play to watch the town change.

Bayport on the 1902 USGS mapBayport on the 1947 USGS mapBayport on the 1955 USGS mapBayport on the 1967 USGS map1902Fire Island sheet · 1:62,500

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Bayport.

The story so far

Bayport, in brief

Wikipedia doesn’t have a history of Bayport yet. The photos, dates and memories neighbors add here are how it gets written.

Bayport is a hamlet and census-designated place (CDP) in the Town of Islip, Suffolk County, New York, United States, on Long Island. The population was 8,609 at the 2020 census. Bayport is in the southeast part of the Town of Islip.

Its first post office opened in 1870. Between the 2010 and 2020 censuses its population fell from 8,896 to 8,609 (-3%).

Intro from Wikipedia. Population: U.S. Census Bureau.

Timeline

Bayport, 1873 to 1986

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 19th century
  2. 1873In the archiveIslip, Suffolk, Co. - Islip, Town of Islip, Suffold Co. - Bay Port, Town of Islip, Suffol…
  3. 1888In the archiveBayport. (Village);
  4. 20th century
  5. 1900In the archiveLaidlaw & Clark Chevrolet and Chrysler sales and service, Bayport, L. I., N. Y
  6. 1902On the mapFirst mapped by the U.S. Geological Survey
  7. 1977Born hereJeff Bilyk is born here
  8. 1986Born herePat Cannone is born here
By decade

Bayport, decade by decade

3 decades in the archive, from the 1870s to the 1900s. Scroll each row; tap a photo for its story.

1870s–1900s6 items
Islip, Suffolk, Co. - Islip, Town of Islip, Suffold Co. - Bay Port, Town of Islip, Suffold Co. - Sayville, Town of Isli…1873Islip, Suffolk, Co. - Islip, Town of Islip, Suffold C…MapBayport. (Village);c. 1888Bayport. (Village);Laidlaw & Clark Chevrolet and Chrysler sales and service, Bayport, L. I., N. Y1900Laidlaw & Clark Chevrolet and Chrysler sales and serv…Laidlaw & Clark Chevrolet and Chrysler sales and service1900Laidlaw & Clark Chevrolet and Chrysler sales and serv…Suffolk County, V. 1, Double Page Plate No. 15 (Map bounded by South Country Rd., Town of Brookhaven, Great South Bay)1902Suffolk County, V. 1, Double Page Plate No. 15 (Map b…MapSuffolk County, V. 1, Double Page Plate No. 3 (Map bounded by Part of town of Islip and Brookhaven)1902Suffolk County, V. 1, Double Page Plate No. 3 (Map bo…Map
1910s–1990snothing yet
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Add from your album
Then & now

Stand where they stood

No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.

Bayport. (Village);
Retake this viewBayport. (Village);, c. 1888

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Bayport’s page.

Retake this view · +15
On the National Register

1 historic place in Bayport

The country’s official list of buildings and places worth saving.

place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
6
each building in a district counts

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

Famous people

2 famous people were born in Bayport

Writers, athletes, leaders and more, ranked by how widely they’re known.

See all →
Pat CannoneAmerican ice hockey player · b. 1986
J
Jeff BilykAmerican soccer player-coach · b. 1977
Help out

Finish Bayport’s story

Most archives stop around 1920. The photos from after that are in family albums, not libraries.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
1 of 10 decades. The empty ones are waiting for someone’s album.
Retake an old viewBayport. (Village);: stand where they stood+15Share a family photoSign in to add one+10
Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Sayville5 historic placesnot graded: under 1,000 residents or part of its townIslip27 historic placesA−Brookhaven52 historic placesA−Blue PointIts storynot graded: under 1,000 residents or part of its townHolbrookIts storynot graded: under 1,000 residents or part of its town

Questions about Bayport’s history

What year was Bayport founded?

The Bayport post office opened in 1870, the earliest record of the town by name (U.S. post office records).

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

Where this page comes from

Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →

From Wikimedia Commons (5), the Library of Congress (1), Wikidata and Wikipedia for famous people and U.S. Geological Survey historical maps. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.