Towner is a census-designated place (CDP) in and governed by Kiowa County, Colorado, United States. The population of the Towner CDP was 18 at the United States Census 2020. The Sheridan Lake post office (Zip Code 81071) serves Towner postal addresses. Towner's post office (ZIP Code 81080) closed down in 1992.

Towner was originally known as "Memphis". It was a frequent attraction for Kansans when their state was "dry". Towner is the easternmost town in Colorado, located less than 2 miles (3 km) from the Kansas border.

The town currently supports two grain elevators. Its population swells during harvest due to the influx of agricultural crews who often camp in the town. Towner students attend Plainview School, close to Sheridan Lake. It is responsible for the education of students in grades pre-kindergarten through grade 12.

Hunting opportunities are abundant in the area, with deer, pronghorn, and pheasant commonplace, as well as an occasional elk sighting.

In 1931, five students and their bus driver died in the Pleasant Hill bus tragedy near Towner.

Towner is located in eastern Kiowa County. Colorado State Highway 96 passes through the community. The closest gas station is about 11 miles (18 km) to the west on Highway 96 in the town of Sheridan Lake. The Kansas state line is 2 miles (3 km) to the east, and Tribune, Kansas, is 18 miles (29 km) to the east of Towner via Kansas State Highway 96.

The Towner CDP has an area of 24 acres (0.097 km), all land.

Towner CDP, Colorado

Year	Pop.	±%
2010	22	—
2020	18	−18.2%
Source: United States Census Bureau

The United States Census Bureau initially defined the Towner CDP for the United States Census 2010.

• List of census-designated places in Colorado

• Towner @ Colorado.com
• Kiowa County website