Age of candidacy laws in the United States

This article delineates the age of candidacy laws of the federal government and individual states of the United States.
State government.
† State Senate membership requirement.
N.A. implies that such a position does not exist in that state.
Alaska.
Astride Any public office: at least 18 (qualified voter requirement)
Michigan.
Most offices: 21 or 30
School Board: 18
Local government.
Many states require elected municipal officers to be at least 18 years of age or be a registered voter in the city thereof. Montana requires mayors to be at least 21 years of age.
As of November 2016, most U.S. cities with populations exceeding 200,000 required their mayor to be a registered voter in the city thereof or at least 18 years of age. Here are the following exceptions: