If you've ever visited Otter Lake City, you've no doubt wondered, "What are the Demographics?" The answer to that question is a resounding yes. The city is home to a relatively young population. According to the 2010 Census, there were 192 households, of which 190 were headed by families with children. The average household size was 2.37 people, while the average family size was 2.82 people.
The Otter River is a stream that flows into the Millers River. It is in the watershed of the Otter River, which also runs through the city. The watershed of the Millers River consists of the Otter River, Otter Lake, and the Millers River. The towns of Otter Lake City and Gardner are both located within this river system. Otter Lake City is the largest city along the Millers River.