In 2023, Ottawa County, OH had a population of 40.2k people with a median age of 50.3 and a median household income of $75,728. Between 2022 and 2023 the population of Ottawa County, OH declined from 40,367 to 40,161, a −0.51% decrease and its median household income grew from $69,515 to $75,728, a 8.94% increase.
The 5 largest ethnic groups in Ottawa County, OH are White (Non-Hispanic) (90.9%), Two+ (Non-Hispanic) (2.23%), White (Hispanic) (1.83%), Other (Hispanic) (1.79%), and Two+ (Hispanic) (1.44%).
None of the households in Ottawa County, 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.
99.7% of the residents in Ottawa County, OH are U.S. citizens.
Most people in Ottawa County, OH drove alone to work, and the average commute time was 24.4 minutes. The average car ownership in Ottawa County, OH was 2 cars per household.
Ottawa County, OH borders Erie County, OH, Lucas County, OH, Sandusky County, OH, and Wood County, OH.