The Addison Township post office opened in 1888, the earliest record of the town by name. Another post office, Addison (1888), opened inside today’s town and later closed.
First census: 272 in 18902020 census: 99138 years
Founding year: the first Addison Township post office (Blevins & Helbock, CC0).
What stands out about Addison Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Addison Township. Tap a year, or press play to watch the town change.
1895Casselton 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 Addison Township.
People over time
Addison Township, census by census
Peaked at 359 in 1900; 99 people lived here in 2020.
14 censuses, 1890–2020.
U.S. Census Bureau decennial counts, from the census table on Addison Township’s Wikipedia page.
The story so far
Addison Township, in brief
Wikipedia doesn’t have a history of Addison Township yet. The photos, dates and memories neighbors add here are how it gets written.
Addison Township is a township in Cass County, North Dakota, United States. It has a population of 99 as of the 2020 census.
Its first post office opened in 1888. Between the 2010 and 2020 censuses its population grew from 91 to 99 (+9%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Addison Township, 1888 to 1920
Woven from the archive, old maps, post office records, the National Register and the people born 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 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.