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B+History
History · Florissant

Florissant dates to 1785, and 38 of its places are on the National Register

More historic than 66% of U.S. towns · #78 of 247 in Missouri. What drives it

Most of Florissant was built recently: 2% of its homes predate 1940 and the median home dates from 1963. 38 places in town are on the National Register, among them three historic districts with 66 buildings between them. Below: 4 old photos and papers, maps from 1927 on, and the census since 1880.

1785founded
38on the National Register
2%homes built before 1940
4old photos & papers
22famous people
From Florissant’s archive · credits on each photo
Quick answers

How Florissant began

When was Florissant founded?

1785

Florissant dates its founding to 1785 (Wikidata). The census first counted it in 1880.

First census: 817 in 18802020 census: 52,533241 years

How historic is Florissant?

B+

More historic than 66% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: Wikidata. First post office: 1818.The full story ↓
History grade

What drives Florissant’s History grade

On its age, its old homes and the National Register, Florissant is more historic than 66% of U.S. towns, #78 of 247 in Missouri. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.

B+
HistoryA character grade: shown, never part of Florissant’s overall grade.
All U.S. towns we grade (21,289)Ahead of 66%
NewerOlder
Missouri towns of 2,500+ (247)Ahead of 69%

Missouri towns list about as much on the Register as the country (a typical Missouri town has 2.4 per 10,000 residents, the U.S. 2.4), so Florissant’s 19.7 sits above most of its state (81% of Missouri towns have fewer) while its 102 historic buildings outnumber those of 90% of U.S. towns.

NoteThe founding year comes from Wikidata alone; no second source gives 1785.
How sure. Graded on any two of the three inputs instead, the letter would range from C+ to A. The pre-1940 share (±0.7 points) is firm at this size.

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 Florissant’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

★ What stands out · On the National Register

38 historic places in Florissant

The country’s official list of buildings and places worth saving. Boundary changes and added documentation are counted with their listing.

places listed
38
National Historic Landmarks
0
none yet
historic buildings protected
102
each building in a district counts
first listed
1974
John B. Myers House
All 39 listings

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

Help out

Start Florissant’s collection

The first neighbors to add old photos shape how Florissant’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
2 of 10 decades. The empty ones are waiting for someone’s album.
The story

How Florissant came to be

From Wikipedia’s history of Florissant.

Read it all →

The exact date the first settlers went to the Valley of Florissant is unknown, but it is one of the oldest settlements in Missouri. Some historians believe it was settled about the same time as St. Louis. The first civilian government was formed in 1786. Spanish archives in Havana reveal 40 people and seven plantations were in Florissant at the time of the 1787 census. The village, called "Fleurissant", meaning "Blooming" in French, by its French settlers and "St. Ferdinand" by its Spanish rulers, was a typical French village with its commons and common fields. Originally a separate town, and now an inner suburb of St. Louis, the community was centered on (and frequently called after) the parish of St. Ferdinand. The center of the parish, the Old St. Ferdinand Shrine, survives and is listed on the National Register of Historic Places.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Florissant, 1785 to 1994

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 18th century
  2. 1785
    FoundingFlorissant is established
  3. 19th century
  4. 1818Post officeThe Florisant post office opens
  5. 1850BuiltArchambault House is built
  6. 1880In the archiveÉglise et couvent de Florissant en 1880
  7. 1885Post officeThe Cross Keys post office opens
  8. 20th century
  9. 1902Post officeThe Cross Keys post office closes
  10. 1924BuiltMeyer House is built
  11. 1927On the mapFirst mapped by the U.S. Geological Survey
  12. 1971In the archiveFlag of
  13. 1978Born hereShandi Finnessey is born here
  14. 1978Born hereScott Bailey is born here
  15. 1982Born hereJohn Behlmann is born here
  16. 1991In the archiveFlo Valley Reporter Military News 1991
  17. 1994Born hereDevin Williams is born here
By decade

Florissant, decade by decade

3 decades in the archive, from the 1880s to the 1990s. Scroll each row; tap a photo for its story.

1890s–1960snothing yet
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.
Add from your album
On the map

Florissant on the map, 1927 to 1994

Every edition of the U.S. Geological Survey’s map of Florissant. Tap a year, or press play to watch the town change.

Florissant on the 1927 USGS mapFlorissant on the 1935 USGS mapFlorissant on the 1954 USGS mapFlorissant on the 1968 USGS mapFlorissant on the 1974 USGS mapFlorissant on the 1982 USGS mapFlorissant on the 1994 USGS map1927St Charles 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 Florissant.

Then & now

Stand where they stood

No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.

Église et couvent de Florissant en 1880
Retake this viewÉglise et couvent de Florissant en 1880, 1880

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Florissant’s page.

Retake this view · +15
People over time

Florissant, census by census

05,00010,00015,00020,00025,00030,00035,00040,00045,00050,00055,00060,00065,00070,00018801900192019401960198020002020Peak: 65,908

Between 682 and 65,908 people in every census since 1880.

15 censuses, 1880–2020.

U.S. Census Bureau decennial counts, from the census table on Florissant’s Wikipedia page.

Famous people

22 famous people were born in Florissant

Writers, athletes, leaders and more, ranked by how widely they’re known.

See all →
Places that used to be

Lost post offices, old corners, places now gone and burying grounds

Another post office, Cross Keys, opened and closed inside today’s town.

Florisant
1818–today
Cross Keys
1885–1902
18101920today
Hamlets and corners on the map
Cross Keys
Gone or out of use
Saint Ferdinand Commonspark
1cemetery inside Florissant
Sacred Heart

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Questions about Florissant’s history

What year was Florissant founded?

In 1785, according to Wikidata. Florissant’s post office opened in 1818, and the census of 1880 counted 817 people here.

How does Florissant rank for history?

Florissant is more historic than 66% of U.S. towns, #78 of 247 in Missouri. 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 Florissant?

38 listings: 36 buildings, among them the John B. Myers House (listed 1974, the first), and 3 historic districts, the St. Ferdinand's Shrine Historic District, the St. Ferdinand Central Historic District and the Elisha and Lucy Patterson Farmstead Historic District, with 66 contributing buildings. 102 historic buildings in all.

How old are the homes in Florissant?

2% of Florissant’s homes were built before 1940 (Census estimate), against a typical 8.4% for a Missouri town; the median home was built in 1963.

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

Where this page comes from

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 (4), Wikidata (2), the National Register of Historic Places (39), 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.