About the flag of St. Louis, Missouri

The flag of St. Louis, Missouri, consists of a solid red background and three thick, wavy lines colored blue and white extending from the top left corner, bottom left corner, and center right edge. Upon the intersection of these lines there is a yellow disk containing a blue fleur-de-lis. The flag was designed by Yale University professor Theodore Sizer and officially adopted in 1964.

In a 2004 poll on the North American Vexillological Association website, St. Louis’ flag was voted the fifth best design among United States city flags.

Revised Code of the City of St. Louis, (Section 1.20.010)

The design submitted by Professor Emeritus Theodore Sizer, Pursuivant of Arms at Yale university, and now on file in the office of the City register is approved, adopted and designated as the official flag of the City. The flag with a solid red background has two broad heraldic wavy bars, colored blue and white, extending from the left top and bottom corners toward left center where they join and continue as one to the center right edge. This symbolizes the confluence of the Missouri and Mississippi rivers. Over the point of confluence a round golden disk upon which is the fleur-de-lis of France (blue) calling attention to the French background of the early city and more particularly to St. Louis of France for whom the City is named. The golden disk represents the City and/or the Louisiana Purchase. (Heraldically, the disk is a "bezant" or Byzantine coin signifying, money or simply purchase.)

The flag's colors recall those of Spain (red and yellow or gold), Bourbon France (white and gold), Napoleonic and Republican France (blue, white and red), and the United States of America (red, white, and blue).

This flag is available in an official size option

Most mass-produced flags are commonly 150x90cm / 5x3' or 90x60cm / 3x2', which will often vary from the official size ratio. We now offer a custom-manufactured official size option for our many of our flags.

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