Scotts Bluff County, Nebraska
Scotts Bluff County is a county on the western border of the U.S. state of Nebraska. As of the 2020 census, the population was 36,084, and was estimated to be 35,586 in 2025, making it the ninth-most populous county in Nebraska. The county seat is Gering and the largest city is Scottsbluff.
Scotts Bluff County is included in the Scottsbluff, NE micropolitan area.
In the Nebraska license plate system, Scotts Bluff County was represented by the prefix "21" (as it had the 21st-largest number of vehicles registered in the state when the license plate system was established in 1922).