It was built by Darius Ogden Mills and was the oldest and largest bank of early California.

Mills moved to Sacramento in 1848 at age 22 from North Salem, New York, set on looking for gold, but changed to trading.

The Bank of Sacramento opened at 812 J Street in 1963 and moved to the former State building May 1966.

Some of the bank building has been saved including the original antique brass teller cages and the Italian Marble bar railing.

Mills & Co." and the numerals 1912 are set into the granite front of the building.