The flag, that serves as the symbol of the city of Koszalin, West Pomeranian Voivodeship, in north-western Poland, is divided horizontally into two equally-sized stripes, white on the top, and blue on the bottom. It was established in 1959.[1][2]
^"Flaga"(PDF). Biuletyn Polskiego Towarzystwa Weksylologicznego (in Polish). February 2000. p. 1. ISSN1509-2429.
^Godło i barwy miasta Koszalina (in Polish), Prezydium Miejskiej Rady Narodowej w Koszalinie (Koszalin Presidium of the City National Council), 1958, no. 3227, retrieved 2022-11-20 – via The National Archive in Koszalin