In 2023, Oswego, SC had a population of 211 people with a median age of 14.4 and a median household income of $N/A. Between 2022 and 2023 the population of Oswego, SC declined from 352 to 211, a −40.1% decrease and its median household income declined from $52,708 to $N/A, a −100% decrease.
The 5 largest ethnic groups in Oswego, SC 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 Oswego, SC 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 Oswego, SC are U.S. citizens.