Each edition grades its towns against each other only.
Most of Rockville was built recently: 0.0% of its homes predate 1940 and the median home dates from 1976. Below: maps from 1943 on.
The Rockville post office opened in 1839, the earliest record of the town by name.
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 Rockville’s history is told.
Woven from the archive, old maps, post office records, the National Register and the people born here.
From Wikipedia’s history of Rockville.
In 1920, Rockville had a school, church, and post office. The Jackson Sawmill Company operated a dummy line in Rockville from 1922 to 1927.
Text from Wikipedia, licensed CC BY-SA 4.0.
Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Every edition of the U.S. Geological Survey’s map of Rockville. 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 Rockville.
Writers, athletes, leaders and more, ranked by how widely they’re known.
Rockville had its own post office from 1839 to 1940.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
The Rockville post office opened in 1839, the earliest record of the town by name (U.S. post office records).
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). How TownRatings grades history →
From 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.
