Vallejo’s post office opened in 1851, and 11% of its homes were built before 1940
More historic than 69% of U.S. towns · #55 of 847 in California. What drives it
9 places in town are on the National Register, among them the Mare Island Naval Shipyard, a National Historic Landmark, and four historic districts with 1,075 buildings between them. Below: 6 old photos and papers, maps from 1886 on, and the census since 1870.
The Vallejo post office opened in 1851, the earliest record of the town by name. Two smaller post offices, Solano (1862) and South Vallejo (1870), opened inside today’s city and later closed.
First census: 2,188 in 18702020 census: 126,090175 years
How historic is Vallejo?
B+
More historic than 69% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Vallejo post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Vallejo’s History grade
On its age, its old homes and the National Register, Vallejo is more historic than 69% of U.S. towns, #55 of 847 in California. Its National Register listings hold the grade up; its age pulls it down.
B+
HistoryA character grade: shown, never part of Vallejo’s overall grade.
Among the 400 U.S. cities of 100,000 or more, Vallejo ranks #174 on History.
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 Vallejo’s 86.8 sits above most of its state (98% of California towns have fewer) while its 1,079 historic buildings outnumber those of 99% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from C+ to A−. The pre-1940 share (±1.0 points) is firm at this size. The founding year is the first post office, not a stated founding date.
Founding year: the first post office (other dates in Quick answers). 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 Vallejo’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
The country’s official list of buildings and places worth saving. One is a National Historic Landmark, the highest tier. Boundary changes and added documentation are counted with their listing.
First Methodist Episcopal ChurchchurchMare Island Navy YardmilitarySaint John MinemineVallejo Fire Department Station 5buildingVallejo Fire Department Station 6building
6cemeteries and burying grounds inside Vallejo
All Souls CatholicOld HillsideSaint VincentSkyview Memorial LawnSunrise MemorialWater Front Memorial Park
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Vallejo was once home of the Coast Miwok as well as Suisunes and other Patwin Native American tribes. There are three confirmed Native American sites located in the rock outcrops in the hills above Blue Rock Springs Park. The California Archaeological Inventory has indicated that the three Indian sites are located on Sulphur Springs Mountain.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Every edition of the U.S. Geological Survey’s map of Vallejo. Tap a year, or press play to watch the town change.
1949Mare Island sheet · 1:24,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Vallejo.
Every building
Vallejo, building by building, 1886–1919
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
The Vallejo post office opened in 1851, the earliest record of the town by name (U.S. post office records).
How does Vallejo rank for history?
Vallejo is more historic than 69% of U.S. towns, #55 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.
What is on the National Register in Vallejo?
9 listings: 4 buildings, 4 historic districts with 1,075 contributing buildings, and 1 structure. 1,079 historic buildings in all.
How old are the homes in Vallejo?
11% of Vallejo’s homes were built before 1940 (Census estimate, ±1.0 points), against a typical 3.4% for a California town; the median home was built in 1975.
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 (2), the Library of Congress (4), the National Register of Historic Places (9), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.