I haven't checked them all by any means, but at least three Hawaii zip codes geocoded poorly.
96812 and 96830 are Honolulu zip codes that are given lat/lons between Midway Islands and Hawaii. 96858 is Fort Shaftner and this is also in the middle of the Pacific.
Again, I'm not sure these are correct, but they are definitely a lot better. I wish I could go through the whole list and manually check them all, but I don't have time.