Mława is a town in north-eastern Poland with 30,403 inhabitants in 2020. It is the capital of Mława County. It is situated in the Masovian Voivode…Mława is a town in north-eastern Poland with 30,403 inhabitants in 2020. It is the capital of Mława County. It is situated in the Masovian Voivodeship. During the invasion of Poland in 1939, the battle of Mława was fought to the north of the city.