In 1827, a 'Round Prairie Post Office' was opened northwest of New Bloomfield, near what became Guthrie almost 50 years later, and near the southern border of a much larger historic Round Prairie Township (subdivided around 1890 to create what then became the northern portion of Guthrie Township).
In 1836, a historic town of 'Bloomfield', next to or containing the Round Prairie Post Office, was first surveyed.
Every edition of the U.S. Geological Survey’s map of New Bloomfield. Tap a year, or press play to watch the town change.
1939Jefferson City sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of New Bloomfield.
People over time
New Bloomfield, census by census
Between 359 and 687 people in every census since 1960.
7 censuses, 1960–2020.
U.S. Census Bureau decennial counts, from the census table on New Bloomfield’s Wikipedia page.
Places that used to be
Old corners and burying grounds
New Bloomfield’s post office has been open since 1841.
Hamlets and corners on the map
Ellerslie
2cemeteries and burying grounds inside New Bloomfield
New BloomfieldSaint Paul
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Questions about New Bloomfield’s history
What year was New Bloomfield founded?
The New Bloomfield post office opened in 1841, the earliest record of the town by name (U.S. post office records).
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, 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.