Castroville dates to 1863, and 1 of its places is on the National Register
More historic than 33% of U.S. towns · #303 of 847 in California. What drives it
Most of Castroville was built recently: 2% of its homes predate 1940 and the median home dates from 1979. Its Register listing is the Castroville Japanese Language School. Below: 2 old photos and papers, maps from 1892 on, and the census since 1950.
Founding year: Wikidata. First post office: 1867.The full story ↓
History grade
What drives Castroville’s History grade
On its age, its old homes and the National Register, Castroville is more historic than 33% of U.S. towns, #303 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 Castroville’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 Castroville’s 1.5 sits above most of its state (78% 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 (±2.4 points) is firm at this size. Two sources give 1863.
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 Castroville’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Castroville. Tap a year, or press play to watch the town change.
1912Capitola sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Castroville.
Every building
Castroville, building by building, 1892–1929
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.
Rancho Bolsa Nueva y Moro Cojo was a 30,901-acre (125.05 km2) Mexican land grant given in 1844 by Governor Manuel Micheltorena to Maria Antonia Pico de Castro, Juan Bautista Castro's mother. Rancho Bolsa Nueva y Moro Cojo is a combination of three land grants: Rancho Bolsa Nueva y Moro Cojo, given in 1844 by Governor Micheltorena to María Antonia Pico de Castro; Rancho Bolsa del Potrero y Moro Cojo, in 1822 by Governor Pablo Vicente de Solá to Joaquín de la Torre.; and the land between the other two, granted by Governor Juan Alvarado to Simeon Castro (Juan Bautista Castro's father) in 1837.
Passages that mention Castroville, cut from the printed page as they were published.
History of Monterey County, California1881 · page 115Read the page →
Read the text
the Southern Pacific. The scheme of a canal up the Tembladera slough from this landing is also within the probabilities in case the building of a railroad is not undertaken, and the extension through Castroville, and the Salinas valley, of the South Pacific Coast Railroad cannot be long delayed. The era of railroad building in this valley has in truth only commenced.
Text read by machine from the scan; it may contain errors.
History of Monterey County, California1881 · page 110Read the page →
Read the text
An intelligent observer wrote as follows, after a brief visit to this town" " The first introduction to Castroville, which is situated about a half mile from the railroad depot, is not prepossessing, since only small cottages, scattered here and there, wildly, yet in abundance, are met with; but upon entering it, one can see signs of life, business and thrift, and can forget the first impressions in the realization of the fact that there aresubstantial stores and residences, pretty gardens and plenty of trees.
Text read by machine from the scan; it may contain errors.
Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.
Timeline
Castroville, 1863 to 1991
Woven from the archive, old maps, post office records, the National Register and the people born here.
In 1863, according to Wikidata. Castroville’s post office opened in 1867, and the census of 1950 counted 1,865 people here.
How does Castroville rank for history?
Castroville is more historic than 33% of U.S. towns, #303 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 Castroville?
One place: the Castroville Japanese Language School (listed 1995).
How old are the homes in Castroville?
2% of Castroville’s homes were built before 1940 (Census estimate, ±2.4 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 (11), the Library of Congress (1), the National Register of Historic Places (1), 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, Sanborn fire insurance maps (Library of Congress) and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.