Most of Frankfort Township was built recently: 0.0% of its homes predate 1940 and the median home dates from 1997. Below: maps from 1895 on and the census since 1890.
Every edition of the U.S. Geological Survey’s map of Frankfort Township. Tap a year, or press play to watch the town change.
1895Byron sheet · 1:125,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Frankfort Township.
People over time
Frankfort Township, census by census
Peaked at 438 in 1920; 134 people lived here in 2020.
14 censuses, 1890–2020.
U.S. Census Bureau decennial counts, from the census table on Frankfort Township’s Wikipedia page.
Frankfort was platted in 1882. Some say it was named after Frankfurt, in Germany, while others believe the town has the name of Frankfort I. Fisher, a pioneer settler. A post office has been in operation in Frankfort since 1882.
In 1882, according to Wikipedia’s history of the town. Frankfort Township’s post office opened in 1882, and the census of 1890 counted 186 people here.
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, 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.