2020 census As of the
2020 census, Bache had a population of 105. The median age was 48.3 years. 20.0% of residents were under the age of 18 and 28.6% of residents were 65 years of age or older. For every 100 females there were 176.3 males, and for every 100 females age 18 and over there were 162.5 males age 18 and over. There were 45 households in Bache, of which 20.0% had children under the age of 18 living in them. Of all households, 37.8% were married-couple households, 51.1% were households with a male householder and no spouse or partner present, and 2.2% were households with a female householder and no spouse or partner present. About 48.9% of all households were made up of individuals and 28.9% had someone living alone who was 65 years of age or older. There were 55 housing units, of which 18.2% were vacant. The homeowner vacancy rate was 0.0% and the rental vacancy rate was 0.0%. ==References==