The demographics of my ZIP code tell me that I live in an area now that's younger, more educated and more dense than the place where I grew up, with a median income more than twice that of the place I left, with higher employment and marriage rates. Fascinating.

Even more fascinating are the "top 100" lists. For example, the list of places in the US with the highest percentage of Graduate-level degrees includes South Harwich, MA, where 100% of the population has a degree. The thing is, there are only 6 people there: one man in his 70s and five women, two of which are in their 80s; their median income is $16K.

Another interesting one: the top 100 areas with the highest median income (blurred a bit by the fact that they lump all incomes above $200K together) includes Rex, NC. This spec of a town (.8 sq miles) has a population of just over 50. A few well-off people got together and formed a postal zone?

Highest unemployment? 100% of the 227 people in this section of Columbia, SC are out of work.