More historic than 31% of U.S. towns · #473 of 593 in Indiana. What drives it
Most of Logan Township was built recently: 2% of its homes predate 1940 and the median home dates from 1995. Below: 3 old photos and papers and maps from 1955 on.
The Logan Township post office opened in 1836, the earliest record of the town by name. Another post office, Logan (1836), opened inside today’s town and later closed.
2020 census: 3,871190 years
How historic is Logan Township?
C
More historic than 31% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Logan Township post office (Blevins & Helbock, CC0).
History grade
What drives Logan Township’s History grade
On its age, its old homes and the National Register, Logan Township is more historic than 31% of U.S. towns, #473 of 593 in Indiana. Its age holds the grade up; its share of homes from before 1940 pulls it down.
C
HistoryA character grade: shown, never part of Logan Township’s overall grade.
Indiana towns list more on the Register than most of the country (a typical Indiana town has 7.9 per 10,000 residents, the U.S. 2.4), so Logan Township’s 0.0 sits below most of its state (22% of Indiana 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 D to C+. The pre-1940 share (±1.8 points) is firm at this size. 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 Logan Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Wikipedia doesn’t have a history of Logan Township yet. The photos, dates and memories neighbors add here are how it gets written.
Logan Township is one of fourteen townships in Dearborn County, Indiana. As of the 2010 census, its population was 3,541 and it contained 1,290 housing units. Logan Township took its name from Logan Creek.
Its first post office opened in 1836. Between the 2010 and 2020 censuses its population grew from 3,541 to 3,871 (+9%).
Intro from Wikipedia. Population: U.S. Census Bureau.
By decade
Logan Township, decade by decade
One decade in the archive so far: the 1870s. Scroll each row; tap a photo for its story.
Every edition of the U.S. Geological Survey’s map of Logan Township. Tap a year, or press play to watch the town change.
1955Cedar Grove sheet · 1:24,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Logan Township.
Places that used to be
Lost post offices, old corners, places now gone and burying grounds
Another post office, Logan, opened and closed inside today’s town.
Hamlets and corners on the map
Logan
Gone or out of use
Helms-Jacobs Airportairport
1cemetery inside Logan Township
Logan
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Stories next door
History across the town line
Each neighbor’s History grade, on the same three inputs.
The Logan Township post office opened in 1836, the earliest record of the town by name (U.S. post office records).
How does Logan Township rank for history?
Logan Township is more historic than 31% of U.S. towns, #473 of 593 in Indiana. 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 Logan Township?
2% of Logan Township’s homes were built before 1940 (Census estimate, ±1.8 points), against a typical 14% for an Indiana town; the median home was built in 1995.
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 (3), Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, 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.
1875
1875
