Must one be a resident of a city in order to run for mayor?

Question

In order for one to run for the mayor of a city in the United States, must one be a resident of said city? Could one be a resident of a neighboring city and still run?

Answer 1

Depends on the city's charter.  I've never heard of a city that will let non-residents run.

Answer 2

Each city establishes its own requirements.

Answer 3

No I think he has to be in the county. Some small towns combine and only have 1 mayor.