More historic than 33% of U.S. towns · #81 of 161 in Louisiana. What drives it
Most of Harvey was built recently: 3% of its homes predate 1940 and the median home dates from 1975. Below: 4 old photos and papers, maps from 1891 on, and the census since 1970.
Founding year: Wikipedia. First post office: 1890.The full story ↓
History grade
What drives Harvey’s History grade
On its age, its old homes and the National Register, Harvey is more historic than 33% of U.S. towns, #81 of 161 in Louisiana. Its age holds the grade up; its share of homes from before 1940 pulls it down.
C
HistoryA character grade: shown, never part of Harvey’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 Harvey’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.
NoteThe founding year comes from Wikipedia alone; no second source gives 1816.
How sure. Graded on any two of the three inputs instead, the letter would range from D to C+. The pre-1940 share (±1.1 points) is firm at this size.
Founding year: Wikipedia (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 Harvey’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
During the French colonial era, the first owner of this land was Jean-Baptiste d'Estrehan de Beaupre, royal treasurer and comptroller for the French Louisiana colony. He established a plantation here. He used his slaves to dig the ditch that would become the Harvey Canal, cutting south from the banks of the Mississippi River to the back of Bayou Barataria, to provide better access.
Years later, d'Estrehan paid German settlers in the area to work on widening the ditch; they used wooden shovels. He paid them with small parcels of land located downriver in Mechanicsham, now the city of Gretna. D'Estrehan built his home where the ditch met the river banks, naming the settlement "Cosmopolite City".
In 1816, according to Wikipedia’s history of the town. Harvey’s post office opened in 1890, and the census of 1970 counted 6,347 people here.
How does Harvey rank for history?
Harvey is more historic than 33% of U.S. towns, #81 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 Harvey?
3% of Harvey’s homes were built before 1940 (Census estimate, ±1.1 points), against a typical 3.4% for a Louisiana town; the median home was built in 1975.
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 (20), 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.