Morro Bay dates to 1870, and 1 of its places is on the National Register
More historic than 36% of U.S. towns · #273 of 847 in California. What drives it
Most of Morro Bay was built recently: 3% of its homes predate 1940 and the median home dates from 1974. Below: maps from 1897 on and the census since 1950.
Founding year: Wikidata; Wikipedia’s history section gives the same year. First post office: 1870.The full story ↓
History grade
What drives Morro Bay’s History grade
On its age, its old homes and the National Register, Morro Bay is more historic than 36% of U.S. towns, #273 of 847 in California. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
C+
HistoryA character grade: shown, never part of Morro 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 Morro Bay’s 0.9 sits above most of its state (75% of California towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from C− to B−. The pre-1940 share (±1.3 points) is firm at this size. Two sources give 1870.
Founding year: Wikidata (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 Morro Bay’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
The prehistory of Morro Bay relates to Chumash settlement, particularly near the mouth of Morro Creek. At least as early as the Millingstone Horizon thousands of years before present, an extensive settlement existed along the banks and terraces above Morro Creek. A tribal site on present-day Morro Bay was named tsɨtqawɨ, Obispeño for "Place of the Dogs".
The first recorded Filipinos to visit America arrived at Morro Bay on October 18, 1587, from the Spanish galleon Nuestra Señora de la Esperanza; one of whom was killed by local Native Americans while scouting ahead.
In 1870, according to Wikidata and Wikipedia’s history of the town. Morro Bay’s post office opened in 1870, and the census of 1950 counted 1,659 people here.
How does Morro Bay rank for history?
Morro Bay is more historic than 36% of U.S. towns, #273 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 Morro Bay?
One place: the Morro Bay State Park Trailer and Tent Campground (listed 2014).
How old are the homes in Morro Bay?
3% of Morro Bay’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 1974.
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 (3), the National Register of Historic Places (1), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), 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.
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