2020 census As of the
2020 census, Fay had a population of 32. The median age was 38.5 years. 21.9% of residents were under the age of 18 and 31.3% of residents were 65 years of age or older. For every 100 females there were 166.7 males, and for every 100 females age 18 and over there were 150.0 males age 18 and over. There were 15 households in Fay, of which 13.3% had children under the age of 18 living in them. Of all households, 66.7% were married-couple households, 13.3% were households with a male householder and no spouse or partner present, and 13.3% were households with a female householder and no spouse or partner present. About 20.0% of all households were made up of individuals and 6.7% had someone living alone who was 65 years of age or older. There were 18 housing units, of which 16.7% were vacant. The homeowner vacancy rate was 0.0% and the rental vacancy rate was 0.0%. ==Education==