In 2023, San Mar, MD had a population of 433 people with a median age of 66.9 and a median household income of $88,056. Between 2022 and 2023 the population of San Mar, MD grew from 353 to 433, a 22.7% increase and its median household income grew from $85,583 to $88,056, a 2.89% increase.
The 5 largest ethnic groups in San Mar, MD are White (Non-Hispanic) (93.8%), Black or African American (Non-Hispanic) (5.31%), Two Races Including Other (Hispanic) (0.924%), American Indian & Alaska Native (Non-Hispanic) (0%), and Asian (Non-Hispanic) (0%).
None of the households in San Mar, MD 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 San Mar, MD are U.S. citizens.
In 2023, the median property value in San Mar, MD was $259,600, and the homeownership rate was 69.9%.