More historic than 4% of U.S. towns · #108 of 140 in Arizona. What drives it
Most of Whetstone was built recently: 0.0% of its homes predate 1940 and the median home dates from 1997. Below: maps from 1938 on and the census since 2000.
On its age, its old homes and the National Register, Whetstone is more historic than 4% of U.S. towns, #108 of 140 in Arizona. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
D−
HistoryA character grade: shown, never part of Whetstone’s overall grade.
Few Arizona towns list much on the Register (a typical Arizona town has 0.1 per 10,000 residents, the U.S. 2.4), so Whetstone’s 0.0 sits below most of its state (29% of Arizona 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 (±1.0 points) is firm at this size.
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 Whetstone’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Whetstone was often referred to as the "Y" because the intersection of State Routes 82 and 90 had an eastbound lane on 90 and a southbound lane on 82 that created a Y at the intersection. Highway 90 ended one to two miles further north, and people traveling north had to go via Highway 82 east or west and then north on either Highway 83 or Highway 80.
Whetstone is more historic than 4% of U.S. towns, #108 of 140 in Arizona. 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 Whetstone?
0.0% of Whetstone’s homes were built before 1940 (Census estimate, ±1.0 points), against a typical 0.4% for an Arizona town; the median home was built in 1997.
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 Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) 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.