New Helvetia, meaning "New Switzerland", was a 19th-century Alta California settlement and rancho, centered in present-day Sacramento, California.

Sacramento is the capital city of the U.S. state of California and the county seat of Sacramento County. Located at the confluence of the Sacramento and American Rivers in Northern California's Sacramento Valley, Sacramento's 2020 population of 524,943 makes it the fourth-most populous city in Northern California, sixth-most populous city in the state, and the ninth-most populous state capital in the United States. Sacramento is the seat of the California Legislature and the Governor of California.