Most of Killian was built recently: 0.4% of its homes predate 1940 and the median home dates from 1993. Below: maps from 1934 on and the census since 1970.
Founding year: the first Killian post office (Blevins & Helbock, CC0).
History grade
What drives Killian’s History grade
On its age, its old homes and the National Register, Killian is more historic than 12% of U.S. towns. Its age holds the grade up; its share of homes from before 1940 pulls it down.
D
HistoryA character grade: shown, never part of Killian’s overall grade.
Louisiana towns list more on the Register than most of the country (a typical Louisiana town has 3.8 per 10,000 residents, the U.S. 2.4), so Killian’s 0.0 sits below most of its state (21% of Louisiana 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 D. The pre-1940 share (±0.6 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 Killian’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 Killian yet. The photos, dates and memories neighbors add here are how it gets written.
Killian is a town in Livingston Parish, Louisiana, United States. As of the 2020 census, Killian had a population of 1,177. It is part of the Baton Rouge Metropolitan Statistical Area.
Its first post office opened in 1891. Between the 2010 and 2020 censuses its population fell from 1,206 to 1,177 (-2%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Killian, 1891 to 1954
Woven from the archive, old maps, post office records, the National Register and the people born here.
Lost post offices, places now gone and burying grounds
Killian had its own post office from 1891 to 1954.
Killian
1891–1954
18901960today
Gone or out of use
Killian SchoolschoolRosenwald Schoolschool
3cemeteries and burying grounds inside Killian
BethlehemMcKinneySchroeder
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Questions about Killian’s history
What year was Killian founded?
The Killian post office opened in 1891, the earliest record of the town by name (U.S. post office records).
How does Killian rank for history?
Killian is more historic than 12% 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 Killian?
0.4% of Killian’s homes were built before 1940 (Census estimate), against a typical 3.4% for a Louisiana town; the median home was built in 1993.
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 (1), 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.
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