The Hartsgrove Township post office opened in 1830, the earliest record of the town by name. Two smaller post offices, Hartsgrove (1830) and Mather (1898), opened inside today’s town and later closed.
First census: 1,157 in 19902020 census: 1,624196 years
How historic is Hartsgrove Township?
B
More historic than 58% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Hartsgrove Township post office (Blevins & Helbock, CC0).
History grade
What drives Hartsgrove Township’s History grade
On its age, its old homes and the National Register, Hartsgrove Township is more historic than 58% of U.S. towns. Its age holds the grade up; its National Register listings pull it down.
B
HistoryA character grade: shown, never part of Hartsgrove Township’s overall grade.
Ohio towns list about as much on the Register as the country (a typical Ohio town has 2.9 per 10,000 residents, the U.S. 2.4), so Hartsgrove Township’s 0.0 sits below most of its state (23% of Ohio towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from C+ to A−. The pre-1940 share is a Census survey estimate (±12.3 points). The founding year is the first post office, not a stated founding date.
Founding year: the first post office (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Hartsgrove 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 Hartsgrove Township. Tap a year, or press play to watch the town change.
1905Jefferson 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 Hartsgrove Township.
Places that used to be
Lost post offices, old corners, places now gone and burying grounds
Two other post offices opened and closed inside today’s town.
Hartsgrove
1830–1905
Mather
1898–1900
18301930today
Hamlets and corners on the map
Hartsgrove
Gone or out of use
Hartsgrove Post Officepost office
2cemeteries and burying grounds inside Hartsgrove Township
Hartsgrove TownshipSoutheast Hartsgrove
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
The story so far
Hartsgrove Township, in brief
Wikipedia doesn’t have a history of Hartsgrove Township yet. The photos, dates and memories neighbors add here are how it gets written.
Hartsgrove Township is one of the twenty-seven townships of Ashtabula County, Ohio, United States. The 2020 census found 1,624 people in the township.
Its first post office opened in 1830. Its population held steady between the last two censuses: 1,597 in 2010, 1,624 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Hartsgrove Township, 1830 to 1905
Woven from the archive, old maps, post office records, the National Register and the people born here.
The Hartsgrove Township post office opened in 1830, the earliest record of the town by name (U.S. post office records).
How does Hartsgrove Township rank for history?
Hartsgrove Township is more historic than 58% of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
How old are the homes in Hartsgrove Township?
18% of Hartsgrove Township’s homes were built before 1940 (Census estimate, ±12.3 points), against a typical 15% for an Ohio town; the median home was built in 1985.
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).
From Wikimedia Commons (2), 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.
2015
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