On its age, its old homes and the National Register, Seacliff is more historic than 18% of U.S. towns, #523 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 Seacliff’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 Seacliff’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 two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share is a Census survey estimate (±3.5 points).
Founding year: our sources. 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 Seacliff’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 Seacliff. 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 Seacliff.
The story so far
Seacliff, in brief
Wikipedia doesn’t have a history of Seacliff yet. The photos, dates and memories neighbors add here are how it gets written.
Seacliff is an unincorporated community in Santa Cruz County, California, United States that includes Seacliff State Beach. It is identified as one of several small communities with a combined population of 24,402 forming the unincorporated town of Aptos by the local Chamber of Commerce along with: Aptos Village Aptos Hills-Larkin Valley, a rural area north of State Route 1 Cabrillo Rio Del Mar, south of State Route 1, from Aptos Creek southeast to Seascape Seascape, south of State Route 1, centered on Seascape Beach Resort For statistical purposes, the United States Census Bureau has defined Seacliff as a census-designated place (CDP). The census definition of the area may not precisely co…
Its population held steady between the last two censuses: 3,267 in 2010, 3,280 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
By decade
No old photos in the archives yet
Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Be the first to add onePhotograph a print flat, in daylight, no flash.
Seacliff is more historic than 18% of U.S. towns, #523 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 Seacliff?
4% of Seacliff’s homes were built before 1940 (Census estimate, ±3.5 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 U.S. Geological Survey historical maps 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.
