Each edition grades its towns against each other only.
More historic than 52% of U.S. towns. What drives it
Most of Sonora was built recently: 9% of its homes predate 1940 and the median home dates from 1971. Its Register listings are the Sutton County Courthouse and the Old Mercantile Building.
The Sonora post office opened in 1889, the earliest record of the town by name.
More historic than 52% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Sonora is more historic than 52% of U.S. towns. Its National Register listings hold the grade up; its age pulls it down.
Few Texas towns list much on the Register (a typical Texas town has 0.0 per 10,000 residents, the U.S. 2.4), so Sonora’s 7.4 sits above most of its state (85% of Texas towns have fewer) while its 2 listings outnumber those of 60% 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 Sonora’s history is told.
From Wikipedia’s history of Sonora.
On the night of April 2, 1901, William Carver, a member of Butch Cassidy's Wild Bunch, was shot and killed in Jack Owen's Bakery by Sheriff E.S. Briant and his deputies. Briant was trying to arrest Carver on suspicion of the murder of Oliver Thornton in Concho County.
Text from Wikipedia, licensed CC BY-SA 4.0.
The country’s official list of buildings and places worth saving.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
The Sonora post office opened in 1889, the earliest record of the town by name (U.S. post office records).
Sonora is more historic than 52% of U.S. towns. 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.
Two places: the Sutton County Courthouse (listed 1977) and the Old Mercantile Building (1978).
9% of Sonora’s homes were built before 1940 (Census estimate, ±5.5 points), against a typical 1.6% for a Texas town; the median home was built in 1971.
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 (6), the National Register of Historic Places (2), Wikipedia, Wikidata and Wikipedia for famous people, 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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