Holmöarna (Swedish, literally the islet islands) is an island group in the Kvarken narrows of the Gulf of Bothnia between Sweden and Finland. The islands form part of Umeå Municipality in Västerbotten County. The islands have 75 year-round inhabitants and the largest islands are Holmön, Ängesön, Grossgrunden, Holmögadd and Lilla and Stora Fjäderägg. Large areas of the islands have been set aside as nature reserves.
Situated on the Ume River, Umeå is the largest locality in Norrland and the thirteenth largest in Sweden, with a wider municipal population of 132,235 inhabitants in the beginning of 2023. When Umeå University was established in 1965, growth accelerated, and the amount of housing has doubled in 30 years from 1980 to 2010. As of 2018, Umeå was gaining around 1,000 inhabitants per year and the municipality plans for having 200,000 inhabitants by 2050. The projection of municipality size in 2050 has, however, been questioned as an overestimation in an independent study.