Most of Bayou Gauche was built recently: 2% of its homes predate 1940 and the median home dates from 1991. Below: 1 old photo or paper, maps from 1891 on, and the census since 2000.
On its age, its old homes and the National Register, Bayou Gauche is more historic than 9% of U.S. towns. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
D
HistoryA character grade: shown, never part of Bayou Gauche’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 Bayou Gauche’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 two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share (±2.6 points) is firm at this size.
Founding year: our sources. 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 Bayou Gauche’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Bayou Gauche. Tap a year, or press play to watch the town change.
1891Hahnville sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Bayou Gauche.
The story so far
Bayou Gauche, in brief
Wikipedia doesn’t have a history of Bayou Gauche yet. The photos, dates and memories neighbors add here are how it gets written.
Bayou Gauche is a census-designated place and fishing village, with an adjacent natural bayou and wetlands. It is located in St. Charles Parish, Louisiana, United States. As of 2020, its population was 2,161.
Between the 2010 and 2020 censuses its population grew from 2,071 to 2,161 (+4%).
Intro from Wikipedia. Population: U.S. Census Bureau.
By decade
Bayou Gauche, decade by decade
One decade in the archive so far: the 1970s. Scroll each row; tap a photo for its story.
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.
Bayou Gauche is more historic than 9% 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 Bayou Gauche?
2% of Bayou Gauche’s homes were built before 1940 (Census estimate, ±2.6 points), against a typical 3.4% for a Louisiana town; the median home was built in 1991.
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 (2), U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) 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.
1973
2004
