Each edition grades its towns against each other only.
More historic than 5% of U.S. towns · #768 of 847 in California. What drives it
Most of El Sobrante was built recently: 0.0% of its homes predate 1940 and the median home dates from 2001. Below: maps from 1901 on.
More historic than 5% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, El Sobrante 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.
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 El Sobrante’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.
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 →
Read from the archive, the National Register and the record. The page puts what stands out first.
The first neighbors to add old photos shape how El Sobrante’s history is told.
Every edition of the U.S. Geological Survey’s map of El Sobrante. Tap a year, or press play to watch the town change.
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of El Sobrante.
From Wikipedia’s history of El Sobrante.
The area was originally named El Sobrante de San Jacinto, with Maria del Rosario Estudilllo de Aguirre receiving a 5 league land grant in 1846. Her husband, José Antonio Aguirre, patented the grant in 1867.
Text from Wikipedia, licensed CC BY-SA 4.0.
Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Nobody well known was born in El Sobrante itself, so here are the best known from just nearby.
Each neighbor’s History grade, on the same three inputs.
El Sobrante 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.
0.0% of El Sobrante’s homes were built before 1940 (Census estimate), against a typical 3.4% for a California town; the median home was built in 2001.
What the archives can’t tell you, neighbors can.
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 Wikipedia and U.S. Geological Survey historical maps. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
