2020 census As of the
2020 census, Sutter Creek had a population of 2,646, and a population density of . The age distribution was 18.7% under the age of 18, 6.7% aged 18 to 24, 20.0% aged 25 to 44, 25.6% aged 45 to 64, and 29.0% who were 65 years of age or older. The median age was 49.2 years. For every 100 females, there were 87.4 males, and for every 100 females age 18 and over, there were 83.5 males age 18 and over. There were 1,265 households, of which 26.0% had children under the age of 18 living in them. Of all households, 40.2% were married-couple households, 6.2% were
cohabiting couple households, 19.2% were households with a male householder and no spouse or partner present, and 34.4% were households with a female householder and no spouse or partner present. About 37.3% of all households were made up of individuals, and 21.3% had someone living alone who was 65 years of age or older. There were 720
families (56.9% of all households), and the average household size was 2.09. There were 1,428 housing units at an average density of , of which 1,265 (88.6%) were occupied and 11.4% were vacant. Of occupied units, 55.5% were owner-occupied and 44.5% were occupied by renters. The homeowner vacancy rate was 1.0% and the rental vacancy rate was 9.3%. ==Politics==