In 2023, Vivian, SD had a population of 39 people with a median age of 55.8 and a median household income of $58,000. Between 2022 and 2023 the population of Vivian, SD declined from 50 to 39, a −22% decrease and its median household income grew from $55,500 to $58,000, a 4.5% increase.
The 5 largest ethnic groups in Vivian, SD are White (Non-Hispanic) (100%), Black or African American (Non-Hispanic) (0%), American Indian & Alaska Native (Non-Hispanic) (0%), Asian (Non-Hispanic) (0%), and Native Hawaiian & Other Pacific Islander (Non-Hispanic) (0%).
None of the households in Vivian, SD reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Vivian, SD are U.S. citizens.