South Pasadena’s post office opened in 1884, and 33% of its homes were built before 1940
More historic than 82% of U.S. towns · #26 of 847 in California. What drives it
9 places in town are on the National Register, among them a historic district with 13 buildings. Below: 10 old photos and papers, maps from 1896 on, and the census since 1890.
From South Pasadena’s archive · credits on each photo
Quick answers
How South Pasadena began
When was South Pasadena founded?
1884
The South Pasadena post office opened in 1884, the earliest record of the town by name. Wikidata gives 1888. Another post office, Hermosa (1882), opened inside today’s city and later closed.
First census: 623 in 18902020 census: 26,943142 years
How historic is South Pasadena?
A−
More historic than 82% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first South Pasadena post office (Blevins & Helbock, CC0). Wikidata: 1888.The full story ↓
History grade
What drives South Pasadena’s History grade
On its age, its old homes and the National Register, South Pasadena is more historic than 82% of U.S. towns, #26 of 847 in California. Its share of homes from before 1940 holds the grade up; its age pulls it down.
A−
HistoryA character grade: shown, never part of South Pasadena’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 South Pasadena’s 7.7 sits above most of its state (90% of California towns have fewer) while its 20 historic buildings outnumber those of 79% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from B to A. The pre-1940 share (±2.9 points) is firm at this size. The founding year is the first post office, not a stated founding date; Wikidata’s 1888 falls in the same era, so the grade doesn’t depend on which one is used.
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 South Pasadena’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 South Pasadena. Tap a year, or press play to watch the town change.
1896Pasadena 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 South Pasadena.
On the National Register
9 historic places in South Pasadena
The country’s official list of buildings and places worth saving.
The original inhabitants of the area were members of the Native American Hahamog-na tribe, a branch of the Tongva Nation (part of the Shoshone language group) that occupied the Los Angeles Basin.
Passages that mention South Pasadena, cut from the printed page as they were published.
An illustrated history of Los Angeles County, California. Containing a history of Los Angeles County from the earliest period of its occupancy to the present time, together with glimpses of its prospective future ... and biographical mention of many of it1889Read the page →
Read the text
In 1878, a large and well furnished schoolhouse in a central location recpiired three teachers for its crowded rooms; while yet another in South Pasadena was conveniently arranged for fifty-six pupils. Ten years later, it was shown by official reports that " Pasadena had the best ventilated, the best lighted, and handsomest school buildings of all towns of its size in the
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
South Pasadena, 1882 to 1990
Woven from the archive, old maps, post office records, the National Register and the people born here.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
The South Pasadena post office opened in 1884, the earliest record of the town by name (U.S. post office records). Wikidata gives 1888.
How does South Pasadena rank for history?
South Pasadena is more historic than 82% of U.S. towns, #26 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 South Pasadena?
9 listings: 7 buildings, among them the Miltimore House (listed 1972, the first), 1 historic district, the South Pasadena Historic District, with 13 contributing buildings, and 1 structure. 20 historic buildings in all.
How old are the homes in South Pasadena?
33% of South Pasadena’s homes were built before 1940 (Census estimate, ±2.9 points), against a typical 3.4% for a California town; the median home was built in 1953.
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 (4), the Library of Congress (6), Wikidata (2), the National Register of Historic Places (9), 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 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.