Each edition grades its towns against each other only.
1 place in town is on the National Register. Below: maps from 1959 on and the census since 1880.
The Sedgwick Township post office opened in 1870, the earliest record of the town by name. Another post office, Putnam (1891), opened inside today’s town and later closed.
Sedgwick Township was named for John Sedgwick, a major general in the Union Army during the American Civil War.
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 Sedgwick Township’s history is told.
From Wikipedia’s history of Sedgwick Township.
Sedgwick was laid out on an 80-acre (32 ha) town site in 1870. It was named for John Sedgwick, a major general in the Union Army during the American Civil War. Sedgwick was incorporated as a city in 1872.
Text from Wikipedia, licensed CC BY-SA 4.0.
Woven from the archive, old maps, post office records, the National Register and the people born here.
On the mapFirst mapped by the U.S. Geological SurveyEvery edition of the U.S. Geological Survey’s map of Sedgwick Township. 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 Sedgwick Township.
The country’s official list of buildings and places worth saving.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
Between 415 and 1,695 people in every census since 1880.
15 censuses, 1880–2020.
U.S. Census Bureau decennial counts, from the census table on Sedgwick Township’s Wikipedia page.
Another post office, Putnam, opened and closed inside today’s town.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Each neighbor’s History grade, on the same three inputs.
The Sedgwick Township post office opened in 1870, 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 Wikimedia Commons (6), 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.
2026
2015
2013
2010
2010
2004
