More historic than 10% of U.S. towns · #138 of 161 in Louisiana. What drives it
Most of Marrero was built recently: 5% of its homes predate 1940 and the median home dates from 1972. Below: 6 old photos and papers, maps from 1891 on, and the census since 1970.
The Marrero post office opened in 1916, the earliest record of the town by name. Two smaller post offices, Amesville (1888) and Walker Town (1926), opened inside today’s town and later closed.
First census: 29,015 in 19702020 census: 32,382110 years
How historic is Marrero?
D
More historic than 10% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Marrero post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Marrero’s History grade
On its age, its old homes and the National Register, Marrero is more historic than 10% of U.S. towns, #138 of 161 in Louisiana. Its share of homes from before 1940 holds the grade up; its age pulls it down.
D
HistoryA character grade: shown, never part of Marrero’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 Marrero’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 C−. The pre-1940 share (±1.5 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 Marrero’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Marrero was named in honor of the Louisiana politician and founder of Marrero Land Company, Louis H. Marrero. The area was originally referred to and shown on maps as "Amesville", after the Boston businessman Oakes Ames, who purchased much of the land following the American Civil War. In February 1916, the U.S. Postmaster officially changed the name of the Post Office to "Marrero".
Louis Herman Marrero was born in Adams County, Mississippi, on July 17, 1847. When he was a child his family moved to St. Bernard Parish, Louisiana. During his school years at Jackson, Louisiana, the American Civil War began, and Marrero joined Captain Scott's Command, later known as the 25th Louisiana Regiment.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
The Marrero post office opened in 1916, the earliest record of the town by name (U.S. post office records).
How does Marrero rank for history?
Marrero is more historic than 10% of U.S. towns, #138 of 161 in Louisiana. 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 Marrero?
5% of Marrero’s homes were built before 1940 (Census estimate, ±1.5 points), against a typical 3.4% for a Louisiana town; the median home was built in 1972.
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 (6), Wikipedia, 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.
1880