On its age, its old homes and the National Register, Bayview is more historic than 16% of U.S. towns, #552 of 847 in California. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
C−
HistoryA character grade: shown, never part of Bayview’s overall grade.
Few California towns list much on the Register (a typical California town has 0.0 per 10,000 residents, the U.S. 2.4), so Bayview’s 0.0 sits below most of its state (31% of California towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share is a Census survey estimate (±4.9 points).
Founding year: our sources. Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Bayview’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Bayview. Tap a year, or press play to watch the town change.
1916Mare 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 Bayview.
The story so far
Bayview, in brief
Wikipedia doesn’t have a history of Bayview yet. The photos, dates and memories neighbors add here are how it gets written.
Bayview is a census-designated place in Contra Costa County, California, United States. Bayview sits at an elevation of 36 feet (11 m). The 2020 United States census reported Bayview's population as 1,782. Prior to 2010, Bayview was part of the Bayview-Montalvin CDP and then separated into the two individual communities of Bayview and Montalvin Manor for the census.
Its population held steady between the last two censuses: 1,754 in 2010, 1,782 in 2020.
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.
Bayview is more historic than 16% of U.S. towns, #552 of 847 in California. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
How old are the homes in Bayview?
3% of Bayview’s homes were built before 1940 (Census estimate, ±4.9 points), against a typical 3.4% for a California town; the median home was built in 1965.
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).
From U.S. Geological Survey historical maps and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
