Each edition grades its towns against each other only.
More historic than 24% of U.S. towns. What drives it
Most of Unionville was built recently: 0.0% of its homes predate 1940 and the median home dates from 1989. Below: 1 old photo or paper and maps from 1936 on.
Unionville dates its founding to 1827 (Wikipedia’s history). Its post office opened in 1837.
More historic than 24% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Unionville is more historic than 24% of U.S. towns. Its age holds the grade up; its share of homes from before 1940 pulls it down.
Tennessee towns list more on the Register than most of the country (a typical Tennessee town has 6.1 per 10,000 residents, the U.S. 2.4), so Unionville’s 0.0 sits below most of its state (16% of Tennessee towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
Founding year: Wikipedia (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 Unionville’s history is told.
Woven from the archive, old maps, post office records, the National Register and the people born here.
Born hereJim Nance McCord is born here
On the mapFirst mapped by the U.S. Geological SurveyFrom Wikipedia’s history of Unionville.
Unionville was platted in 1827, and named for the fact two rival settlements merged with the new name. A post office has been in operation at Unionville since 1837.
Text from Wikipedia, licensed CC BY-SA 4.0.
Every edition of the U.S. Geological Survey’s map of Unionville. 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 Unionville.
No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.
Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Unionville’s page.
Retake this view · +15Unionville’s post office has been open since 1837.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
In 1827, according to Wikipedia’s history of the town. Unionville’s post office opened in 1837.
Unionville is more historic than 24% 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.
0.0% of Unionville’s homes were built before 1940 (Census estimate, ±2.8 points), against a typical 4.9% for a Tennessee town; the median home was built in 1989.
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 (3), the Library of Congress (1), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, 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.
Date?
2026
2026
2026
