In 2020, St. Marys, PA had a population of 30.1k people with a median age of 47.9 and a median household income of $54,961. Between 2019 and 2020 the population of St. Marys, PA declined from 30,340 to 30,077, a −0.867% decrease and its median household income grew from $53,440 to $54,961, a 2.85% increase.
The 5 largest ethnic groups in St. Marys, PA are White (Non-Hispanic) (97%), Two+ (Non-Hispanic) (1.02%), Black or African American (Non-Hispanic) (0.618%), Asian (Non-Hispanic) (0.469%), and Two+ (Hispanic) (0.439%).
None of the households in St. Marys, PA 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.
99.7% of the residents in St. Marys, PA are U.S. citizens.
In 2020, the median property value in St. Marys, PA was $103,100, and the homeownership rate was 78.4%.
Most people in St. Marys, PA drove alone to work, and the average commute time was 17.4 minutes. The average car ownership in St. Marys, PA was 2 cars per household.