Delta County Courthouse

Cooper is a city in and the county seat of Delta County, in the U.S. state of Texas. Located between the north and south forks of the Sulphur River, Cooper is the largest settlement in Delta County. At the 2020 United States census, the city had a population of 1,911. First inhabited by native people, Cooper was founded around 1870, at the same time that Delta County was established. Cooper grew rapidly and quickly became the center of local events. The city's economy relied primarily on agriculture and the shipping of local goods. In the mid-1890s, a railroad line was built through the city, assisting in Cooper's growth. The city continued to grow through the 1910s, and into the early 1920s. In 1926, however, the region's cotton crop failed, devastating the local economy. Many businesses were forced to close, including the railroad, and the city's population plummeted. Although Cooper began to recover during the mid-1930s, many people who left did not return, and the city never fully recovered. The local economy continued to rely on the growing of cotton as the main economy into the 1960s, until it began to shift to wheat growing in the early 1970s. The population of Cooper has been on a slow decline since the 1970s. Cooper has no sites listed on the National Register of Historic Places. The city's economy still relies largely on agriculture. Cooper is located on the eastern edge of the Dallas–Fort Worth metroplex (DFW metroplex), a large, 12-county metropolitan area, one of the most populated in the country.

Cooper High School is a public high school located in Cooper, Texas (USA) and classified as a 2A school by the UIL. It is part of the Cooper Independent School District located in central Delta County. In 2016, the school was rated "Met Standard" by the Texas Education Agency.

KPCO-FM (89.9 FM) is a radio station licensed to serve the community of Cooper, Texas. The station is owned by Iglesia Cristiana Ebenezer, and airs a Spanish religious format. The station was assigned the KPCO-FM call letters by the Federal Communications Commission on May 11, 2011.

Delta County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 5,230. Its county seat and largest city is Cooper. The county was founded in 1870 and is named for its triangular shape, which resembles the Greek letter delta. Meanders of two forks of the Sulphur River formed its northern and southern boundaries and meet at its easternmost point. Delta County was one of 19 prohibition, or entirely dry, counties in the state of Texas. As of 2015, Delta County is no longer a dry county.

Cooper Lake State Park is a Texas State Park in Delta and Hopkins counties, about three miles (5 km) south of Cooper, Texas. The park is situated on Jim Chapman Lake, formerly known as Cooper Lake. There are actually two geographically separate units; the Doctors Creek unit 33°20′54″N 95°40′08″W is located on the north side of the lake, in Delta County, while the South Sulphur unit 33°17′49″N 95°39′35″W is located on the south side of the lake, in Hopkins County.

Liberty Grove is a ghost town in Delta County, Texas, United States. The community was settled by 1854, the year its school opened. The farming community included the school and a cemetery as of 1936. In 1966, the community had about 25 residents. The community's cemetery was relocated in 1989, and the community was subsequently abandoned and flooded by Cooper Lake. A campsite in Cooper Lake State Park bears the community's name.

Jim Chapman Dam (originally Cooper Dam, National ID # TX08012) is a dam in Delta County and Hopkins County, Texas, United States. The earthen dam was constructed in 1991 by the Southwestern Division of the United States Army Corps of Engineers with a height of 95 feet, and a length of 28,072 feet at its crest. It impounds the south fork of the Sulphur River for municipal water supply and recreation. The dam is owned and operated by the Corps of Engineers. The reservoir it creates, Jim Chapman Lake, has a 19,305-acre (7,812 ha) water surface and a maximum capacity of 797,000 acre-feet (983,000,000 m3). The lake is known as a preferred location for fishing in the region. Species likely to be caught are blue and channel catfish, bluegill, Florida largemouth bass, crappie and hybrid striped bass. The Texas Parks and Wildlife Department's two separate units of Cooper Lake State Park are located on Jim Chapman Lake. The Dam was formerly known as Cooper Dam. Both lake and dam were renamed by an act of Congress in 1998 to honor Jim Chapman, a former congressman from nearby Sulphur Springs.

Jim Chapman Lake (also known as Cooper Lake) is a 19,305-acre (78.12 km2) impoundment operated by the Army Corps of Engineers and is located 75 miles (121 km) east of the Dallas/Fort Worth Metroplex in the state of Texas. The reservoir was created by the 1991 Jim Chapman Dam and impounds the South Sulphur River, a fork of the Sulphur River. It provides water supply storage for the North Texas Municipal Water District, the Sulphur River Municipal Water District. The lake is known as a preferred location for fishing in the region. Species likely to be caught are blue and channel catfish, Florida largemouth bass, crappie, and hybrid striped bass. The Texas Parks and Wildlife Department’s Cooper Lake State Park is located on Jim Chapman Lake. The lake was formerly known as Cooper Lake, but was renamed by an act of Congress in 1998 to honor Jim Chapman, a former congressman from nearby Sulphur Springs. Cooper Lake State Park retains the earlier name.

Enloe is an unincorporated community in Delta County, Texas, United States. According to the Handbook of Texas, the community had a population of 113 in 2000.

Crossroads is an unincorporated community in Delta County, Texas, United States. According to the Handbook of Texas, the community had a population of 10 in 2000.

Klondike is an unincorporated community in Delta County, Texas, United States. According to the Handbook of Texas, its population was estimated at 135 in 2000.

Lake Sulphur Springs is an artificial lake located in Sulphur Springs, Hopkins County, Texas. The lake is located directly north of the Sulphur Springs Municipal Airport.