Most of Monroe City was built recently: 6% of its homes predate 1940 and the median home dates from 1966. Below: maps from 1944 on and the census since 1880.
The Monroe City post office opened in 1883, the earliest record of the town by name. Another post office, Lovely Dale (1854), opened inside today’s town and later closed.
First census: 401 in 18802020 census: 502143 years
Founding year: the first Monroe City post office (Blevins & Helbock, CC0).
What stands out about Monroe City’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Peaked at 688 in 1900; 502 people lived here in 2020.
15 censuses, 1880–2020.
U.S. Census Bureau decennial counts, from the census table on Monroe City’s Wikipedia page.
The story so far
Monroe City, in brief
Wikipedia doesn’t have a history of Monroe City yet. The photos, dates and memories neighbors add here are how it gets written.
Monroe City is a town in Harrison Township, Knox County, Indiana, United States. The population was 502 at the 2020 census. Monroe City was named for one of its founders, Monroe Alton.
Its first post office opened in 1883. Between the 2010 and 2020 censuses its population fell from 545 to 502 (-8%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Monroe City, 1854 to 1944
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 Wikimedia Commons (2), 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.