Alturas, California, US is the seat of Modoc County, established in 1874 and incorporated in 1907. It is the county's most populous city, with a 2020 census population of approximately 2,800. Alturas is located in the far northeast corner of California, near the Oregon and Nevada borders. The city's notable landmark is the Modoc County Courthouse, built in 1914, which is the oldest functioning courthouse in California north of Sacramento.
Ace Hardware takes the top spot among Home Improvement Stores in Alturas, California with 1 locations as of May 8, 2024.