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History · Blue Point

Blue Point’s post office opened in 1856, and 20% of its homes were built before 1940

Below: 6 old photos and papers from 1873 on.

1856first post office
0on the National Register
20%homes built before 1940
6old photos & papers
2famous people
Add an old photoShare a memory
From Blue Point’s archive · credits on each photo
Quick answers

How Blue Point began

When was Blue Point founded?

1856

The Blue Point post office opened in 1856, the earliest record of the town by name.

2020 census: 5,156170 years
Founding year: the first Blue Point post office (Blevins & Helbock, CC0).
The story so far

Blue Point, in brief

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

Blue Point is a hamlet and census-designated place in Suffolk County on Long Island, New York, United States. The population was 5,156 at the 2020 census. Blue Point is in the Town of Brookhaven.

Its first post office opened in 1856. Between the 2010 and 2020 censuses its population grew from 4,773 to 5,156 (+8%).

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

Timeline

Blue Point, 1873 to 1919

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

  1. 19th century
  2. 1873In the archivePart of Brookhaven, Sufffolk Co. L.I
  3. 1888In the archiveBayport. (Village);
  4. 20th century
  5. 1902In the archiveSuffolk County, V. 1, Double Page Plate No. 16 (Map bounded by Great South Bay, Town of I…
  6. 1906Born hereTommy Thompson is born here
  7. 1919Born hereAlbert Barthelme is born here
By decade

Blue Point, decade by decade

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

1870s–1880s5 items
Part of Brookhaven, Sufffolk Co. L.I1873Part of Brookhaven, Sufffolk Co. L.IMapCenter Moriches Town of Brookhaven Suffolk Co1873Center Moriches Town of Brookhaven Suffolk CoMapBayport. (Village);c. 1888Bayport. (Village);Blue Point, Long Islandlabel QS:Len,"Blue Point, Long Island"1888Blue Point, Long Islandlabel QS:Len,"Blue Point, Long…South Part of Brookhaven. (Township)c. 1888South Part of Brookhaven. (Township)
1900s1 item
Suffolk County, V. 1, Double Page Plate No. 16 (Map bounded by Great South Bay, Town of Islip, South Country Rd.)1902Suffolk County, V. 1, Double Page Plate No. 16 (Map b…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 Blue Point’s page.

Retake this view · +15
Famous people

2 famous people were born in Blue Point

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

See all →
T
Tommy ThompsonAmerican calligrapher, graphic artist and typef… · b. 1906
A
Albert BarthelmeAmerican basketball coach · b. 1919
Help out

Finish Blue Point’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.

Patchogue4 historic placesA−Bayport1 historic placenot graded: under 1,000 residents or part of its townIslip27 historic placesA−Brookhaven52 historic placesA−North PatchogueIts storynot graded: under 1,000 residents or part of its townHolbrookIts storynot graded: under 1,000 residents or part of its town

Questions about Blue Point’s history

What year was Blue Point founded?

The Blue Point post office opened in 1856, 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 (6) and Wikidata and Wikipedia for famous people. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.