In 2020, St. Martin, OH had a population of 164 people with a median age of 48.7 and a median household income of $111,071. Between 2019 and 2020 the population of St. Martin, OH declined from 209 to 164, a −21.5% decrease and its median household income grew from $77,222 to $111,071, a 43.8% increase.
The 5 largest ethnic groups in St. Martin, OH are White (Non-Hispanic) (100%), White (Hispanic) (0%), Black or African American (Non-Hispanic) (0%), Black or African American (Hispanic) (0%), and American Indian & Alaska Native (Non-Hispanic) (0%).
None of the households in St. Martin, OH 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 St. Martin, OH are U.S. citizens.
The largest universities in St. Martin, OH are Chatfield College (31 degrees awarded in 2020).
In 2020, the median property value in St. Martin, OH was $241,700, and the homeownership rate was 84.3%.
Most people in St. Martin, OH drove alone to work, and the average commute time was 29.2 minutes. The average car ownership in St. Martin, OH was 4 cars per household.