Communities with the highest median income

4. Dover

2009 median income: $169,038
1999 median income: $202,747
1989 median income: $177,835
1979 median income: $125,841
30-year change: 34.3 percent

Fun Fact: With a nickname like the Town of Friendship, Dover would have to be a nice place to live.

Pictured: The Dover Town Library