It’s probably worth pointing out the law of large numbers (though Reply’s answer should be noted as well).
With a large enough population size, things that you would expect to happen at a certain rate will basically happen at that rate. But, with a smaller population size, you’re going to see samples that are wildly higher and lower than what you expect.
Brain cancer, for example, is notably more prevalent in s few states that have a small population size. It’s also notably less prevalent in a few states with a small population. Whereas, heavily populated states are all in the middle.
This is purely just a matter of how randomness works and should be taken into account before assuming that there’s a meaningful correlation between that locality and whatever subject you’re looking at.
But so, from a technical standpoint, you would want to see if the pattern hold across a number of towns and cities in Alaska to see if it’s consistent or just the impact of one or two prolific, horrors of humanity. We would expect half the towns to have a lower rate of rape, balancing out an equal half with a higher than average rate.
That’s probably not the case, as Reply’s information would tell us. Though it is possible that Anchorage could be an outlier even considering the socioeconomic factors. It could be a general problem in the area, exacerbated by one or two prolific horrors of humanity, roaming the streets.