Most of Columbia was built recently: 0.9% of its homes predate 1940 and the median home dates from 1979. 1 place in town is on the National Register, among them the Columbia Historic District, a National Historic Landmark, and a historic district with 39 buildings. Below: 6 old photos and papers from 1866 on.
Founding year: Wikipedia. First post office: 1852.The full story ↓
History grade
What drives Columbia’s History grade
On its age, its old homes and the National Register, Columbia is more historic than 45% of U.S. towns. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
B−
HistoryA character grade: shown, never part of Columbia’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 Columbia’s 174 sits above most of its state (99% of California towns have fewer) while its 39 historic buildings outnumber those of 83% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from D to B+. The pre-1940 share (±1.3 points) is firm at this size. Two sources give 1850.
Founding year: Wikipedia (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 Columbia’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
The original indigenous people in the Columbia region were the Miwok.
Rev. John Steele wrote about his time in the gold rush era and about the "Mi-wuk" of Columbia in his memoirs In Camp and Cabin.
Within weeks of finding gold in the vicinity of Columbia, thousands of people arrived and the population climbed to 5,000. By 1852, there were 8 hotels, 4 banks, 17 general stores, 2 bookstores, 1 newspaper, 3 churches, and over 40 drinking/gambling establishments. Between 1850 and the early 1900s, $87 million (~$2.54 billion in 2024) in gold was removed from the surrounding hills.
In 1850, according to Wikipedia’s history of the town. Columbia’s post office opened in 1852.
How does Columbia rank for history?
Columbia is more historic than 45% of U.S. towns. 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 Columbia?
One place: the Columbia Historic District (listed 1966).
How old are the homes in Columbia?
0.9% of Columbia’s homes were built before 1940 (Census estimate, ±1.3 points), against a typical 3.4% for a California town; the median home was built in 1979.
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), the National Register of Historic Places (1), Wikipedia, Wikidata and Wikipedia for famous people, 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.
★ Landmark
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