Each edition grades its towns against each other only.
More historic than 15% of U.S. towns · #584 of 847 in California. What drives it
Most of Sage was built recently: 0.7% of its homes predate 1940 and the median home dates from 1986. Below: maps from 1942 on and old-book passages.
The Sage post office opened in 1891, the earliest record of the town by name.
More historic than 15% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Sage is more historic than 15% of U.S. towns, #584 of 847 in California. Its age holds the grade up; its share of homes from before 1940 pulls it down.
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 Sage’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.
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 →
Read from the archive, the National Register and the record. The page puts what stands out first.
The first neighbors to add old photos shape how Sage’s history is told.
Wikipedia doesn’t have a history of Sage yet. The photos, dates and memories neighbors add here are how it gets written.
Sage is an unincorporated community and census-designated place (CDP) in Riverside County, California, United States. It has a population of 3,370 according to the 2020 census. Its elevation is 2,313 feet (705 m).
Its first post office opened in 1891.
Intro from Wikipedia. Population: U.S. Census Bureau.
Passages that mention Sage, cut from the printed page as they were published.
In the mountains surrounding the San Jacinto valley on the east and south are the settlements of Idyllwild, Keen Camp, Kenworthy, Cahuilla, Aguanga and Sage. It is a peculiar fact that in the settlement of a new country the most remote and inaccessible mountain nooks are the first to be located. Such mountainous spots are usually occupied long before the broad, level, fertile lands of the plain are taken. The reason for the mountain choice with the first pioneers is the abundance of water and pasture the year around, and
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.
Woven from the archive, old maps, post office records, the National Register and the people born here.
On the mapFirst mapped by the U.S. Geological SurveyEvery edition of the U.S. Geological Survey’s map of Sage. Tap a year, or press play to watch the town change.
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Sage.
Nobody well known was born in Sage itself, so here are the best known from just nearby.
Sage had its own post office from 1891 to 1898.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Each neighbor’s History grade, on the same three inputs.
The Sage post office opened in 1891, the earliest record of the town by name (U.S. post office records).
Sage is more historic than 15% of U.S. towns, #584 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.
0.7% of Sage’s homes were built before 1940 (Census estimate, ±1.1 points), against a typical 3.4% for a California town; the median home was built in 1986.
What the archives can’t tell you, neighbors can.
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), U.S. Geological Survey historical maps, 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.
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