On its age, its old homes and the National Register, Monroe Township is more historic than 81% of U.S. towns, #292 of 993 in Ohio. All 2 inputs are above most U.S. towns; its National Register listings ranks highest and its share of homes from before 1940 lowest.
A−
HistoryA character grade: shown, never part of Monroe 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 Monroe Township’s 47.1 sits above most of its state (88% of Ohio towns have fewer) while its 77 historic buildings outnumber those of 88% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share (±2.3 points) is firm at this size.
Founding year: our sources. 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 Monroe Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Lost post offices, old corners, places now gone and burying grounds
Two other post offices opened and closed inside today’s town.
Fidility
1849–1907
Ginghamsburg
1867–1905
18401930today
Hamlets and corners on the map
EvanstonFrederickGinghamsburg
Gone or out of use
Ginghamsburg Post Officepost office
2cemeteries and burying grounds inside Monroe Township
MonroePearson
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
On the map
Monroe Township on the map, 1904 to 1992
Every edition of the U.S. Geological Survey’s map of Monroe Township. Tap a year, or press play to watch the town change.
1904Dayton 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 Monroe Township.
The story so far
Monroe Township, in brief
Wikipedia doesn’t have a history of Monroe Township yet. The photos, dates and memories neighbors add here are how it gets written.
Monroe Township is one of the twelve townships of Miami County, Ohio, United States. The 2020 census found 16,114 people in the township.
Between the 2010 and 2020 censuses its population grew from 15,553 to 16,114 (+4%).
Intro from Wikipedia. Population: U.S. Census Bureau.
From the old history books
What they wrote about Monroe Township, 1880–1909
Passages that mention Monroe Township, cut from the printed page as they were published.
The History of Miami County, Ohio1880 · page 420Read the page →
Read the text
Monroe Township is in the southern tier of townships naming east and west, in Miami County, and is bounded on the north by Concord Township, while the Great Miami River separates it from Staunton and Bethel on the east ; Montgomery County bounds it on the south, and Union, the southwestern township of Miami County, on the west It contains thirty -six fhll and six fractional sections, making, in all, about nineteen thousand three hundred and twenty acres. In the beginning of the present century, when the few hardy men reached here from South Carolina, they found the forest unbroken for miles around ; not a spot of
Text read by machine from the scan; it may contain errors.
Centennial history. Troy, Piqua and Miami county, Ohio1909 · page 89Read the page →
Read the text
tled by people from the far south, from North and South Carolina. AVhy they selected one part of the county and not the other is still a mystery. Monroe Township was settled to a great extent by people from that section of the Union. Monroe is found in the southern tier of townships, bounded on the north by Concord, on the
Text read by machine from the scan; it may contain errors.
The History of Miami County, Ohio1880 · page 432Read the page →
Read the text
The first mail matter coming to Monroe Township stopped at the post office which was then located in Hyattsville. Henry J. Hyatt, was the first Postmaster. He lived in a log cabin with one room, which was used as a dry-goods store, tailor’s shop, post office and dwelling house ; and, as the room was by no means large, it will readily be seen that every part of the house was occupied. The mail was brought from West Charleston once a week, by Kiel Hoagland, a youth often summers, who rode a bob-tailed sorrel horse, with a blazed face, by no means as fleet as the one Mazeppa rode.
Text read by machine from the scan; it may contain errors.
Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.
Timeline
Monroe Township, 1849 to 1907
Woven from the archive, old maps, post office records, the National Register and the people born here.
Monroe Township is more historic than 81% of U.S. towns, #292 of 993 in Ohio. 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 Monroe Township?
12% of Monroe Township’s homes were built before 1940 (Census estimate, ±2.3 points), against a typical 15% for an Ohio town; the median home was built in 1977.
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), the Library of Congress (2), U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.