Williams (formerly Central) is a city in Colusa County, California.

According to the United States Census Bureau, the city has a total area of 5.4 square miles (14 km2), all of it land.

The postal service established a post office at Central in 1874.

The town and post office were renamed in 1876, in honor of W. H. Williams, who platted the townsite.

16.9% of households were made up of single individuals and 8.7% were one person aged 65 or older.

In the state legislature, Williams is in the 1st Senate District, represented by Republican Megan Dahle,[8] and the 4th Assembly District, represented by Democrat Cecilia Aguiar-Curry.

[9] Federally, Williams is in California's 1st congressional district, represented by Republican Doug LaMalfa.

[11][12] California's longest-serving governor, Jerry Brown, retired to a home that he built on his family's ancestral Schuckman Ranch, in the foothills west of Williams.