2020 census As of the
2020 census, Willow Valley had a population of 1,059. The median age was 58.8 years. 12.6% of residents were under the age of 18 and 34.3% of residents were 65 years of age or older. For every 100 females there were 116.6 males, and for every 100 females age 18 and over there were 114.4 males age 18 and over. 0.0% of residents lived in urban areas, while 100.0% lived in rural areas. There were 544 households in Willow Valley, of which 16.2% had children under the age of 18 living in them. Of all households, 37.1% were married-couple households, 32.4% were households with a male householder and no spouse or partner present, and 24.1% were households with a female householder and no spouse or partner present. About 41.8% of all households were made up of individuals and 24.8% had someone living alone who was 65 years of age or older. Of the 274 households 14.6% had children under the age of 18 living with them, 58.4% were married couples living together, 7.3% had a female householder with no husband present, and 29.6% were non-families. 24.1% of households were one person and 13.1% were one person aged 65 or older. The average household size was 2.14 and the average family size was 2.48. The age distribution was 13.7% under the age of 18, 2.4% from 18 to 24, 21.5% from 25 to 44, 29.4% from 45 to 64, and 33.0% 65 or older. The median age was 56 years. For every 100 females, there were 101.0 males. For every 100 females age 18 and over, there were 98.0 males. The median household income was $39,250 and the median family income was $41,406. Males had a median income of $25,147 versus $24,219 for females. The per capita income for the CDP was $16,956. None of the population or families were below the
poverty line. ==Education==