More historic than 5% of U.S. towns · #768 of 847 in California. What drives it
Most of Granite Bay was built recently: 0.0% of its homes predate 1940 and the median home dates from 1987. Below: maps from 1944 on and the census since 2000.
On its age, its old homes and the National Register, Granite Bay is more historic than 5% of U.S. towns, #768 of 847 in California. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
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HistoryA character grade: shown, never part of Granite Bay’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 Granite Bay’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 (±0.3 points) is firm at this size.
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 Granite Bay’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Wikipedia doesn’t have a history of Granite Bay yet. The photos, dates and memories neighbors add here are how it gets written.
Granite Bay is a census-designated place (CDP) in Placer County, California, United States. It is part of the Sacramento metropolitan area. The population was 21,247 at the 2020 census, up from 20,402 at the 2010 census. The ZIP codes are 95746 and 95661. Granite Bay is a primarily residential suburb of Sacramento and is located just east of Roseville and west of Folsom Lake.
Between the 2010 and 2020 censuses its population grew from 20,402 to 21,247 (+4%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Granite Bay, 1944 to 2000
Woven from the archive, old maps, post office records, the National Register and the people born here.
Granite Bay is more historic than 5% of U.S. towns, #768 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 Granite Bay?
0.0% of Granite Bay’s homes were built before 1940 (Census estimate), against a typical 3.4% for a California town; the median home was built in 1987.
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 Wikimedia Commons (6), Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) 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.
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