Cascade is a rural city in and the county seat of Valley County, Idaho, United States. The population was 939 at the 2010 census, down from 997 in 2000. History The Cascade Dam across the Payette River was completed in 1948, and is located in the north end of the city. The dam created Cascade Reservoir along the west side of the city. With the introduction of nearby Tamarack Resort in 2004, the name was officially changed to Lake Cascade for marketing reasons. Cascade was the home of a sizable Boise Cascade sawmill, which closed in May 2001. Geography According to the United States Census Bureau, the city has a total area of , of which, is land and is water. Minor earthquake A minor earthquake here in 1977 measured 4.5 on the Richter scale and lasted over a minute; felt across the region, it was centered near Cascade and occurred in the early hours of Sunday, November 27. Climate Cascade experiences a humid continental climate (Köppen abbreviation Dsb) with long, cold, snowy winters and short, warm, dry summers. Demographics 2010 census As of the census of 2010, there were 939 people, 416 households, and 256 families residing in the city. The population density was . There were 847 housing units at an average density of . The racial makeup of the city was 96.5% White, 0.2% African American, 0.9% Native American, 0.2% Asian, 0.6% from other races, and 1.6% from two or more races. Hispanic or Latino of any race were 2.7% of the population. There were 416 households, of which 24.5% had children under the age of 18 living with them, 48.6% were married couples living together, 9.6% had a female householder with no husband present, 3.4% had a male householder with no wife present, and 38.5% were non-families. 32.0% of all households were made up of individuals, and 12.5% had someone living alone who was 65 years of age or older. The average household size was 2.20 and the average family size was 2.77. The median age in the city was 46.4 years. 19.6% of residents were under the age of 18; 8.7% were between the ages of 18 and 24; 19.9% were from 25 to 44; 33.9% were from 45 to 64; and 18% were 65 years of age or older. The gender makeup of the city was 50.7% male and 49.3% female. 2000 census As