Flag of Duluth, Minnesota
| Use | Civil and state flag |
|---|---|
| Proportion | 3:5 |
| Adopted | August 14, 2019 |
| Design | An upper lighter blue, a lower dark green, and a bottom darker blue. Two parallel, wavy white lines are between the blues and green; each has three peaks. There is an eight-pointed gold star in the sky blue between the first and second peaks. |
| Designed by | Blane Tetreault |
The flag of Duluth, Minnesota consists of three main sections: a lighter blue that takes up the upper half, a dark green that takes up a quarter below that, and a darker blue in the bottom quarter. Between the blues and green there are two parallel wavy white lines; each has four valleys and three peaks. An eight-pointed gold star in the sky blue is situated above the first and second peaks in the white lines.
An earlier city flag was adopted in 1979, but had fallen out of use by the 2010's. A flag contest was held in 2019 to update the city flag; a design by Blane Tetreault was picked from 195 submissions from 98 artists as the winner. Approved by Duluth's city council in 2019 and 2020, it was first flown in 2021. In a 2022 North American Vexillological Association (NAVA) survey, the flag received an A grade and was rated in the top 25 of over 300 flags introduced since 2015.