Here in Sweden there are two team sports that are really big, Football and Ice Hockey, all other team sports popularity are very much dependent on how Sweden are fairing at it on a international level, as there's not much of a domestic market (no big leagues and not very high attendance). If we do well internationally they're popular for a bit, but if we don't then no one cares about it. Popular individual sports includes skiing (cross country and alpine) Tennis, Athletics and Golf. Tennis gets HUGE when we have someone who plays in a grand slam final, it becomes about as popular as football is during the world cup which means that basically everyone watch it. Other sports like Harness Racing, Motocross and Formula 1 are also quite popular. Mixed Martial Arts (MMA) is becoming more and more popular and is starting to fill up the hole that was left behind boxing. Boxing was once the most popular sport in Sweden but nowadays there's not even much interest during the summer olympics. MMA is much more popular.
Sports like Basketball and "Brännboll" (Very similar to Baseball) are played a lot during school days but has very little following in media. Rugby and American Football are also not very big but are not commonly played in schools either.