The Arnold Township post office opened in 1877, the earliest record of the town by name. Three smaller post offices, Milldale (1883), Loyal (1907) and Finchville (1914), opened inside today’s town and later closed.
First census: 231 in 19102020 census: 738149 years
Founding year: the first Arnold Township post office (Blevins & Helbock, CC0).The full story ↓
What stands out about Arnold Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Arnold was laid out and platted in 1883 in anticipation that the railroad would soon be extended to that point. However, the railroad failed to materialize and Arnold grew slowly until the railroad finally arrived in 1912.
Every edition of the U.S. Geological Survey’s map of Arnold Township. Tap a year, or press play to watch the town change.
1972Arnold sheet · 1:24,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Arnold Township.
On the National Register
1 historic place in Arnold Township
The country’s official list of buildings and places worth saving.
place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
1
each building in a district counts
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
Stories next door
History across the town line
Each neighbor’s History grade, on the same three inputs.
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 Wikimedia Commons (8), Wikidata (1), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), 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.