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St. Louis County, Missouri (U.S.)

image by Valentin Poposki, November 30, 2025

Description of the flag
Seal
Former flags

- indicates flag is known.
- indicates it is reported that there is no known flag.

Municipal flags in St. Louis County:

Ballwin
Bellefontaine Neighbors
Berkeley
Black Jack
Brentwood
Bridgeton
Chesterfield
Clayton
Creve Coeur
Des Peres
Ellisville
Eureka
Fenton
Florissant
Frontenac

Grantwood
Green Park
Hazelwood
Kinloch
Kirkwood
Ladue
Manchester
Maplewood
Maryland Heights
Olivette
Overland
Pacific

Richmond Heights
St. Ann
St. John
Shrewsbury
Sunset Hills
Town and Country
University City
Valley Park
Warson Woods
Webster Groves
Wildwood
Winchester
Woodson Terrace

See also:

Description of the flag

St. Louis County unveils new flag
Spectrum News
Mrach 11, 2025
https://spectrumlocalnews.com/mo/st-louis/news/2025/03/11/st--louis-county-unveils-new-flag

St. Louis County Executive Sam Page unveiled the county’s new flag during today’s State of the County at UMSL.
The flag’s design is described by the county as a modern interpretation of the iconic fleur-de-lis. The county says the symbol points boldly forward, signifying a commitment to progress and opportunity as it charts its future.
The colors displayed also pay homage to St. Louis’ history, according to the county.
Red reflects the vibrant transformation underway in St. Louis County, while blue represents natural waterways and landscapes that define our region, which symbolizes growth, sustainability, and connection. White symbolizes unity and hope as we come together to build a brighter St. Louis County.

It was designed by José Garza and Hayveyah McGowan, artists in residency with the Kranzberg Arts Foundation. The foundation, along with St. Louis County, hosted workshops to get community feedback. The county says common themes heard from residents were that they wanted to see something that incorporates nature and unity while being contemporary, timeless and pointing to the future.
Valentin Poposki, November 30, 2025

Seal

image located by Paul Bassinson, 22 July 2018

Image source: mo-esp.com
Paul Bassinson, 22 July 2018

Former flags

Second flag

image by Masao Okazaki, 12 July 2020

The St. Louis city flag is occasionally flown in St. Louis County, although it has no legal status there. St. Louis City seceded from St. Louis County in 1876 and is now considered a separate Missouri county. There is at the moment, extremely modest sentiment here for rejoining the two in some fashion. This flag may possibly become a regional symbol in the future.
Christopher S. Johnson, 30 January 1999

The county's flag is on a page of The Flag Loft, a flag maker in St. Louis: https://flagloft.com/product/st-louis-county-flag/. A recent photo of the county's flag is seen in this article and photo https://www.stltoday.com and https://bloximages.newyork1.vip.townnews.com/stltoday.com/
Masao Okazaki, 12 July 2020

First flag

image by Daniel Rentería, 22 August 2023

Here on WorthPoint is an old flag of the St. Louis County, Missouri Department of Parks & Recreation. I am not aware of it being used today by the department, but I doubt it.
Daniel Rentería, 22 August 2023