Well. I guess I should stay in Illinois

Here are the State Constitutions that ban Atheists from holding office.

Arkansas:
"No person who denies the being of a God shall hold any office in the civil departments of this State, nor be competent to testify as a witness in any Court."

Maryland:
"That no religious test ought ever to be required as a qualification for any office of profit or trust in this State, other than a declaration of belief in the existence of God; nor shall the Legislature prescribe any other oath of office than the oath prescribed by this Constitution.”

Mississippi:
"No person who denies the existence of a Supreme Being shall hold any office in this state."

North Carolina:
"The following persons shall be disqualified for office: First, any person who shall deny the being of Almighty God."

South Carolina:
"No person who denies the existence of a Supreme Being shall hold any office under this Constitution."

Tennessee:
"No person who denies the being of God, or a future state of rewards and punishments, shall hold any office in the civil department of this state."

Texas:
"No religious test shall ever be required as a qualification to any office, or public trust, in this State; nor shall any one be excluded from holding office on account of his religious sentiments, provided he acknowledge the existence of a Supreme Being."

Pennsylvania:
"No person who acknowledges the being of a God and a future state of rewards and punishments shall, on account of his religious sentiments, be disqualified to hold any office or place of trust or profit under this Commonwealth."

Source: https://en.wikipedia.org/wiki/Discrimination_against_atheists#United_States