Racial and ethnic composition 2020 census As of the
2020 census, Grant-Valkaria had a population of 4,509. The median age was 55.8 years. 14.3% of residents were under the age of 18 and 27.7% of residents were 65 years of age or older. For every 100 females there were 103.1 males, and for every 100 females age 18 and over there were 102.5 males age 18 and over. 17.4% of residents lived in urban areas, while 82.6% lived in rural areas. There were 1,842 households in Grant-Valkaria, of which 19.9% had children under the age of 18 living in them. Of all households, 64.8% were married-couple households, 14.7% were households with a male householder and no spouse or partner present, and 14.0% were households with a female householder and no spouse or partner present. About 18.1% of all households were made up of individuals and 10.1% had someone living alone who was 65 years of age or older. According to 2020 ACS 5-year estimates, there were 1,197 families residing in the town.
Income and poverty In 2021, the median household income in Grant-Valkaria was $82,273 per year, although 6.3% of Grant-Valkaria's population lived in poverty. The median age for Grant-Valkaria was 54. ==Government==