Using the numbers for the voting-age Oklahoma population, this pool contains 49% males and 51% females with self-identified racial origins of: 76.7% White alone, 7.4% Black alone, 7.1% Native American alone, 1.3% Asian alone, 0.1% Pacific Islander alone, 1.3% Other alone, and 6.1% of two or more races. Of the total, 5.1% claim Hispanic or Latino ethnicity.
21.8 percent of the potential Oklahoma voters have a Bachelor's Degree or higher education. 13.2 are living in households below the poverty level. 18.7% of the 1,410,826 households have incomes of $100,000 or more.
http://worldpopulationreview.com/states/oklahoma-population/ : 3,943,066
http://www.census.gov/data/tables/time-series/demo/voting-and-registration/electorate-profiles-2016.html, click on Oklahoma
Eligibility: Who Can Register - You can register to vote if you are a citizen of the United States, a resident of the State of Oklahoma, and 18 years old or older. Felons - A convicted felon may not register for a period equal to the time of the original sentence. A convicted felon who has been pardoned may register. Persons judged incapacitated by a court may not register to vote. https://www.ok.gov/elections/Voter_Info/Register_to_Vote/
http://felonvoting.procon.org/view.resource.php?resourceID=000287; 2010 estimate=1.82% ineligible felons of total eligible voting population
Out of 2,157,458 total registered voters in Oklahoma, 1,451,056 voted this year for a presidential candidate. That's a registered voter participation of 67% and a 55% participation of the potential voting pool. Oklahoma voters come in three main flavors: 45.6% are registered as Republican, 39.7% as Democrats, and 14.5% as Independent. The rest, Libertarians and Americans Elect, total less than 1%.
https://www.ok.gov/elections/documents/20161101%20-%20Registration%20By%20County%20%28vr2420%29.pdf
2016 Presidental
Democratic Hillary Clinton/Tim Kaine 28.9% 419,788
Republican Donald Trump/Mike Pence 65.3% 947,934
Libertarian Gary Johnson/Bill Weld 5.7% 83,334
The numbers for the House and Senate races reflect those of the presidential election.
http://www.cnn.com/election/results/states/oklahoma/president , est. 99% in