Located 25 miles (40 km) east of downtown Oklahoma City, Harrah had a population of 6,245 people as of the 2020 Census, a 22.6% increase from 2010.

The town was settled by Americans, Polish immigrants, and other groups and had a cotton ginning center.

Harrah is located in the Crosstimbers ecoregion and the Frontier Country tourism region.

[4][5] Oklahoma is located in a temperate region and experiences occasional extremes of temperature and precipitation typical of a continental climate.

[6] Harrah lies in an area known as Tornado Alley characterized by frequent interaction between cold and warm air masses producing severe weather.

[9] In 1890, Navarre and the Citizen Potawatomi participated, unwillingly, in the allotment process implemented through the Dawes Act of 1887.

Frank Harrah, for whom the town is named, purchased 40 acres (160,000 m2) from Louis Navarre's allotment in April 1898 and early settlers included a large number of Polish immigrants.

[8] More than two million Poles entered American ports between 1897 and 1913, and the immigrants formed small communities around Choctaw Nation coal mines.

Sweeney, who operated a ferry beginning in 1891, the town was renamed Harrah on December 22, 1898, and was incorporated in 1908.

[14] 22.7% of the households are occupied by a single individual, and 26.1 percent had someone living alone who was 65 years of age or older.