The North Fork post office opened in 1888, the earliest record of the town by name. Another post office, Cascadel (1892), opened inside today’s town and later closed.
2020 census: 3,250138 years
How historic is North Fork?
C−
More historic than 20% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first North Fork post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives North Fork’s History grade
On its age, its old homes and the National Register, North Fork is more historic than 20% of U.S. towns, #457 of 847 in California. Its age holds the grade up; its share of homes from before 1940 pulls it down.
C−
HistoryA character grade: shown, never part of North Fork’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 North Fork’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 any two of the three inputs instead, the letter would still be C−. The pre-1940 share (±1.8 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 North Fork’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
North Fork lies within the traditional homeland of the North Fork Mono, a Western Mono community whose traditional territory extended across the western slopes of the central Sierra Nevada and adjoining areas of the San Joaquin Valley. By the early 20th century, the acquisition of land by non-Native settlers had resulted in many North Fork Mono families concentrating around the community of North Fork.
Every edition of the U.S. Geological Survey’s map of North Fork. Tap a year, or press play to watch the town change.
1965North Fork 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 North Fork.
Questions about North Fork’s history
What year was North Fork founded?
The North Fork post office opened in 1888, the earliest record of the town by name (U.S. post office records).
How does North Fork rank for history?
North Fork is more historic than 20% of U.S. towns, #457 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 North Fork?
4% of North Fork’s homes were built before 1940 (Census estimate, ±1.8 points), against a typical 3.4% for a California town; the median home was built in 1983.
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, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock) 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.
