[2] The highest natural point in Colorado and the entire Rocky Mountains is the summit of Mount Elbert in Lake County at 14,440 feet (4,400 meters) elevation.

As originally defined, Lake County included a large portion of western Colorado to the south and west of its present boundaries.

With its many reductions in size, Lake County's designated county seat also changed multiple times within just a few years, residing successively in Oro City (from 1861), Lourette (from 1863), Dayton (from 1866), and Granite (from 1868).

The 2013 horror video game Outlast is set in a fictional asylum in Lake County.

As of the census[10] of 2000, there were 7,812 people, 2,977 households, and 1,914 families living in the county.

26.30% of all households were made up of individuals, and 5.60% had someone living alone who was 65 years of age or older.