Cavalier is the largest city in Pembina County, North Dakota, United States.

[9] In the early 1970s, the city of Cavalier's population quadrupled in size due to the U.S.' anti-ballistic missile program.

This was in preparation of a nuclear attack on the U.S. during the Cold War with the Soviet Union.

According to the United States Census Bureau, the city has a total area of 0.82 square miles (2.12 km2), all land.

[10] Cavalier has a warm-summer humid continental climate (Koppen: Dwb).

Precipitation is mostly confined to late spring into early fall and peaks in June.

43.2% of all households were made up of individuals, and 18.1% had someone living alone who was 65 years of age or older.

38.4% of all households were made up of individuals, and 21.8% had someone living alone who was 65 years of age or older.

From 2002 to 2005, the Cavalier Tornadoes football team, led by coach Rod Oksendahl (1978–2005), had a 47-game winning streak, the second longest winning streak in North Dakota high school football history.

The streak ended when the Tornadoes lost to the Velva-Sawyer Aggies in the 2005 State Class 'A' championship game.