Spirit Lake is a city in Kootenai County, Idaho. The population was 1,945 at the time of the 2010 census, up from 1,376 in 2000. It is part of the Coeur d'Alene Metropolitan Statistical Area, which includes the entire county.
A post office called Spirit Lake has been in operation since 1903. The city took its name from nearby Spirit Lake.
Spirit Lake is located at 47.966592°N 116.866383°W / 47.966592; -116.866383, at an elevation of 2,569 feet (783 m) above sea level.
According to the United States Census Bureau, the city has a total area of 2.29 square miles (5.93 km2), all land.
As of the census of 2010, there were 1,945 people, 739 households, and 530 families living in the city. The population density was 849.3 inhabitants per square mile (327.9/km2). There were 797 housing units at an average density of 348.0 per square mile (134.4/km2). The racial makeup of the city was 96.3% White, 0.2% African American, 0.5% Native American, 0.4% Asian, 0.1% Pacific Islander, 0.6% from other races, and 1.9% from two or more races. Hispanic or Latino of any race were 2.8% of the population.