In 2023, Belvidere, SD had a population of 112 people with a median age of 14.3 and a median household income of $50,833. Between 2022 and 2023 the population of Belvidere, SD grew from 97 to 112, a 15.5% increase and its median household income grew from $46,500 to $50,833, a 9.32% increase.
The 5 largest ethnic groups in Belvidere, SD are White (Non-Hispanic) (75.9%), American Indian & Alaska Native (Non-Hispanic) (24.1%), Black or African American (Non-Hispanic) (0%), Asian (Non-Hispanic) (0%), and Native Hawaiian & Other Pacific Islander (Non-Hispanic) (0%).
None of the households in Belvidere, 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 Belvidere, SD are U.S. citizens.