[5] 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.

[7] 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.

[8][9][10] Cascade experiences a humid continental climate (Köppen abbreviation Dsb) with long, cold, snowy winters and short, warm, dry summers.

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.

22.6% were of German, 12.7% English, 11.4% Irish, 8.7% American and 5.8% French ancestry according to Census 2000.