From a river ford to a growing city
Harrah sits in the southeast corner of Oklahoma County at a natural ford on the North Canadian River. E. W. Sweeney ran a ferry there and then a bridge in 1891, and the settlement carried his name until December 1898, when it was renamed for Frank Harrah, who had bought forty acres and developed the town site. Harrah incorporated in 1908. Horseshoe Lake, an old cutoff of the river, later supplied water for development, and Oklahoma Gas and Electric began operating a generating station in Harrah in 1924, according to the Oklahoma Historical Society.
Growth has picked up lately. The Historical Society counts 6,254 residents in April 2020, up from 5,095 in 2010. Census estimates for 2020 to 2024 put the median home at 1989, and about a quarter of Harrah’s roughly 2,700 homes were built in 2010 or later. In the same week we might work on a fresh PEX system in a new subdivision, a 1970s house, and a farmhouse with additions from three different decades. Manufactured homes are part of the mix too, and the supply lines under their floors need extra freeze protection.
Six city wells and a city sewer plant
Inside the city, the Utility Department provides water, sewer and trash service. Harrah’s 2026 water quality report says the water comes from six groundwater wells, and EPA records list the system as serving about 4,200 people. Public Works runs a wastewater treatment facility rated at 990,000 gallons per day and also handles stormwater and erosion control.
The same report lists naturally occurring uranium and radium among the contaminants detected in 2025 sampling and attributes them to erosion of natural deposits. That fits what is known about the rock under central Oklahoma, which carries metals of its own. If you want to know what your service line is made of, the report invites customers to call the city for its service line inventory.
Private wells and septic beyond the city lines
With about 4,200 people on a city system in a town of more than 6,200, a good number of Harrah households run their own wells, and those rural lots typically treat wastewater on site. Federal drinking water rules stop at the public system, so Harrah well owners handle their own testing; the CDC suggests a yearly check at a state-certified lab for coliform bacteria and nitrates, among other things. Septic work is regulated by the Oklahoma Department of Environmental Quality, which requires an Authorization to Construct before a system is installed or modified and puts maintenance on the property owner. We handle septic plumbing and pressure tank repair on the house side, and whole-house water filtration after a well test.
The ground matters too. Harrah lies in the Cross Timbers, the belt of post oak and blackjack oak woodland on sandy, rolling ground that covers the northeast side of the metro, and those oak roots are a steady source of sewer and septic line trouble. Harrah also still farms: corn, soybeans and alfalfa, plus orchards and produce, per the Historical Society. That means barns, yard hydrants, stock tank lines and long buried water runs. Open fields give a north wind a clean shot at all of it. On February 16, 2021, Oklahoma City recorded minus 14°F, and on a night like that an uninsulated well house or hydrant line freezes fast.
Permits and codes in Harrah
Harrah requires permits for plumbing, electrical and mechanical work, and the city requires a license for each. Building permit applications have to comply with the International Residential, Building, Mechanical and Plumbing Codes. Applications go to the permit clerk at City Hall, 19625 NE 23rd Street, and the city has its own building inspector. We pull the plumbing permit and meet the inspector, and you can read more about our company before you call.
