Guest, Sign inJoin

Post to Shell Ridge

We’ll email a one-tap link to publish your post. No password, and nothing is public until you click it.
Already a member? Sign in
–Not graded
History · Shell Ridge

Half of Shell Ridge’s homes were built after 1958

Most of Shell Ridge was built recently: 0.0% of its homes predate 1940 and the median home dates from 1958. Below: maps from 1897 on.

0on the National Register
0.0%homes built before 1940
Add an old photoShare a memory

What stands out about Shell Ridge’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 Shell Ridge are in the public archives yet. The rest are in attics and albums.On the map since 18978 editions of the USGS map, 1897 to 1993. Watch Shell Ridge change.Old housesHalf of Shell Ridge’s homes were built before 1958.
★ What stands out · Help out

Start Shell Ridge’s collection

The first neighbors to add old photos shape how Shell Ridge’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

Shell Ridge on the map, 1897 to 1993

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

Shell Ridge on the 1897 USGS mapShell Ridge on the 1915 USGS mapShell Ridge on the 1947 USGS mapShell Ridge on the 1959 USGS mapShell Ridge on the 1968 USGS mapShell Ridge on the 1973 USGS mapShell Ridge on the 1980 USGS mapShell Ridge on the 1993 USGS map1897Concord 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 Shell Ridge.

The story so far

Shell Ridge, in brief

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

Shell Ridge is a census-designated place in Contra Costa County, California, United States. Shell Ridge sits at an elevation of 295 feet (90 m). The 2020 United States census reported Shell Ridge's population was 1,014.

Between the 2010 and 2020 censuses its population grew from 959 to 1,014 (+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.
Add from your album
Famous people

Famous people close to Shell Ridge

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

See all →
Tom HanksAmerican actor and film producer · b. 1956
Dave BrubeckAmerican jazz pianist and composer · b. 1920
Joe DiMaggioAmerican baseball player · b. 1914
K
Kyle GassAmerican singer and musician · b. 1960
C
Christy TurlingtonAmerican model · b. 1969
Dante BascoAmerican actor and rapper · b. 1975

Questions about Shell Ridge’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.