As of the 2020[4] census, the community had a population of 279.[5]
Alverda has a post office; its residents use ZIP code 15710.[6][7] It includes the neighborhood of Brownstown, which had, historically, been a separate village.
At the time of the 2020 census, there were 279 people, 122 households in the community.
The population density was 260.0 people per square mile (100.4 people/km2). There were 122 housing units at an average density of 45.9 per square mile (17.7/km2).
The racial makeup of the community was 93.5% White, 0.1% African American, 0.03% American Indian or Alaska Native, and 0.4% from two or more races.
There were 122 households, 32.0% had children under the age of eighteen living with them; 49.0% were married couples living together, 18.0% had a single guardian with no spouse present, and 33.0% were non-families.