Otter Lake is a city located in Michigan. With a 2020 population of 379, it is the 467th largest city in Michigan and the 14465th largest city in the United States. Otter Lake is currently declining at a rate of -0.26% annually and its population has decreased by -2.57% since the most recent census, which recorded a population of 389 in 2010. Otter Lake reached it's highest population of 389 in 2010. Spanning over 1 miles, Otter Lake has a population density of 502 people per square mile.
The average household income in Otter Lake is $53,716 with a poverty rate of 18.67%. The median rental costs in recent years comes to $906 per month, and the median house value is $90,000. The median age in Otter Lake is 40 years, 38.7 years for males, and 44.9 years for females. For every 100 females there are 106.5 males.