1 guide, each rated 1 to 5 with the reason — and two lists per place, where you are comfortable and where to pay attention. Nowhere is called dangerous; the specific thing is what helps.
Extremely low crime, but nature is the danger. Never walk on glaciers unguided, respect closed road signs, check road.is and vedur.is daily in winter, and stay well back from sneaker waves at Reynisfjara beach.
Comfortable: Reykjavik
Laugavegur — at three on a Saturday, for drunkenness rather than crime
Icelandic weather and single-lane roads, which is what actually hurts visitors here
The ratings are this site's own, from the guides' authors and the corrections readers send in; they are not an index. Read the general advice in travel safety tips.