Mercer Island has 3 main neighborhoods, " North, Mid Island, and South" how are these areas marked?I have been told many times by long time residents/ realtors that the brake off points are 40th north is "North End", 40th to 53rd is "Mid Island" and 53rd south is "South End"? Zillow has them marked a little different? Any thoughts? Ideas? Opinions? GeoAugust 10 2012 - Mercer Island0YesReport a ProblemProblemSelect oneOffensive contentIrrelevant contentSpam (pure self-promotion)OtherDetailsYour emailPlease enter a valid email address.Submit CancelContent flaggedWe will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.We're sorry. This service is temporarily unavailable. Please come back later and try again.