Gretna dates to 1836, and 17% of its homes were built before 1940
More historic than 92% of U.S. towns · #4 of 161 in Louisiana. What drives it
6 places in town are on the National Register, among them two historic districts with 1,168 buildings between them. Below: 3 old photos and papers, maps from 1891 on, and the census since 1850.
Founding year: Wikidata; Wikipedia’s history section gives the same year. First post office: 1869.The full story ↓
History grade
What drives Gretna’s History grade
On its age, its old homes and the National Register, Gretna is more historic than 92% of U.S. towns, #4 of 161 in Louisiana. All 3 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 Gretna’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 Gretna’s 675 sits above most of its state (99% of Louisiana towns have fewer) while its 1,173 historic buildings outnumber those of 99% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from A− to A+. The pre-1940 share is a Census survey estimate (±4.3 points). Two sources give 1836.
Founding year: Wikidata (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 Gretna’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
According to the history published by the city, Gretna's history can be traced to a plantation established by Jean-Charles de Pradel by 1750 (when the plantation house, Monplaisir, was built). By 1813, the plantation had passed into the hands of one François Bernoudy. John McDonogh (also spelled John McDonough), then a resident of New Orleans, bought the establishment, moved into the house and founded a settlement in 1815, that would be named McDonoghville. He subdivided the rest of the former plantation into regular city lots and 30-arpent farming strips. McDonoghville thus became the first subdivision in Jefferson Parish. McDonough either leased or sold these properties to white laborers or free people of color.
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.
In 1836, according to Wikidata and Wikipedia’s history of the town. Gretna’s post office opened in 1869, and the census of 1850 counted 717 people here.
How does Gretna rank for history?
Gretna is more historic than 92% of U.S. towns, #4 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.
What is on the National Register in Gretna?
6 listings: 4 buildings, among them the Old Jefferson Parish Courthouse (listed 1983, the first), and 2 historic districts, the Gretna Historic District and the McDonoghville Historic District, with 1,168 contributing buildings. 1,173 historic buildings in all.
How old are the homes in Gretna?
17% of Gretna’s homes were built before 1940 (Census estimate, ±4.3 points), against a typical 3.4% for a Louisiana town; the median home was built in 1966.
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 (9), the Library of Congress (8), Wikidata (3), the National Register of Historic Places (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.