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–Not graded
History · Green Knoll

1 of Green Knoll’s places is on the National Register

Most of Green Knoll was built recently: 4% of its homes predate 1940 and the median home dates from 1979. Below: maps from 1891 on.

1on the National Register
4%homes built before 1940
Add an old photoShare a memory
Photo: Mr. Matté (if there is an issue with this image, contact me using this image's Commons talk page, my Commons user talk page, or my English Wikipedia user talk page; I'll know about it a lot faster) · CC BY-SA 4.0

What stands out about Green Knoll’s past

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

A history waiting to be writtenNo old photos of Green Knoll are in the public archives yet. The rest are in attics and albums.On the map since 18916 editions of the USGS map, 1891 to 1995. Watch Green Knoll change.
★ What stands out · Help out

Start Green Knoll’s collection

The first neighbors to add old photos shape how Green Knoll’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Share a family photoSign in to add one+10
On the map

Green Knoll on the map, 1891 to 1995

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

Green Knoll on the 1891 USGS mapGreen Knoll on the 1905 USGS mapGreen Knoll on the 1947 USGS mapGreen Knoll on the 1955 USGS mapGreen Knoll on the 1970 USGS mapGreen Knoll on the 1995 USGS map1891Somerville 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 Green Knoll.

The story so far

Green Knoll, in brief

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

Green Knoll is an unincorporated community and census-designated place (CDP) located within Bridgewater Township, in Somerset County, in the U.S. state of New Jersey. As of the 2020 census, Green Knoll had a population of 6,594.

Between the 2010 and 2020 censuses its population grew from 6,200 to 6,594 (+6%).

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

By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

Be the first to add onePhotograph a print flat, in daylight, no flash.
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On the National Register

1 historic place in Green Knoll

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

place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
1
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

Famous people close to Green Knoll

Nobody well known was born in Green Knoll itself, so here are the best known from just nearby.

See all →
Lee Van CleefAmerican actor · b. 1925
Frederica von StadeAmerican singer and recording artist · b. 1945
Frederick T. FrelinghuysenAmerican lawyer and politician · b. 1817
Philip MorrisonAmerican astrophysicist · b. 1915
Elinor WylieAmerican poet · b. 1885
Jeffrey ChiesaUS politician · b. 1965
Stories next door

History across the town line

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

MartinsvilleIts storynot graded: under 1,000 residents or part of its townBridgewater CenterIts storynot graded: under 1,000 residents or part of its townPluckemin1 historic placenot graded: under 1,000 residents or part of its townBridgewater Township3 historic placesBBedminster Township3 historic placesB

Questions about Green Knoll’s history

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 U.S. Geological Survey historical maps. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.