2020 census As of the
2020 census, Galva had a population of 2,470. The population density was . There were 1,099 households and 683 families residing in the city. The median age was 42.7 years. 22.0% of residents were under the age of 18 and 21.3% of residents were 65 years of age or older. For every 100 females there were 95.3 males, and for every 100 females age 18 and over there were 96.4 males age 18 and over. Of the 1,099 households, 25.3% had children under the age of 18 living in them. Of all households, 42.7% were married-couple households, 20.9% were households with a male householder and no spouse or partner present, and 27.7% were households with a female householder and no spouse or partner present. About 36.9% of all households were made up of individuals, and 18.5% had someone living alone who was 65 years of age or older. The average household size was 2.95 and the average family size was 2.21. There were 1,254 housing units at an average density of . Of the housing units, 12.4% were vacant. The homeowner vacancy rate was 3.3% and the rental vacancy rate was 16.6%.
Income and poverty The median income for a household in the city was $44,191, and the median income for a family was $65,913. Males had a median income of $44,935 versus $27,288 for females. The
per capita income for the city was $25,796. About 14.3% of families and 19.5% of the population were below the
poverty line, including 44.3% of those under age 18 and 5.5% of those age 65 or over. ==Education==