Coquille is a city in, and the county seat of, Coos County, Oregon, United States. The population was 3,866 at the 2010 census. The primary economic base is the timber industry. The city derives its name from the Coquille Native American tribe.
According to the United States Census Bureau, the city has a total area of 2.80 square miles (7.25 km2), of which 2.76 square miles (7.15 km2) is land and 0.04 square miles (0.10 km2) is water.
Coquille is bordered by the Coquille River which drains part of the Coastal Range into the Pacific Ocean at Bandon.
The record high temperature is 104 °F (40 °C), set on September 22, 2009. The record low temperature is 8 °F (−13.3 °C), set on December 22, 1990. There is one afternoons of at least 90 °F or 32.2 °C per year. Conversely, there are 23 afternoons with a high of less than 50 °F or 10 °C and 38 mornings with a temperature of 32 °F or 0 °C or lower.
According to the Köppen climate classification, Coquille has a warm-summer Mediterrean climate (Csb).
As of the census of 2010, there were 3,866 people, 1,640 households, and 1,036 families living in the city.