[zach]

The difference between metropolitan statistical areas and cities is particularly noticeable with respect to Miami.

The city itself is only the 42nd largest in the country (population 450K) but the MSA (which includes Fort Lauderdale and many suburbs) is the country's 7th-largest (population 5M+).

[scott_s]

Similar situation for DC. The city proper has 600K, but the DC metro area (the parts of VA and MD near DC) has about 5.4M.