Sundsvall is a city and the seat of Sundsvall Municipality in Västernorrland County, Sweden. It has a population of 58,807 as of 2020; more than 95,000 live in the municipal area. It is Sweden's 21st largest city by population.
Wikipedia https://en.wikipedia.org/wiki/Sundsvall
Coordinates 62°23'26.719" N 17°18'25.568" E