Oklahoma

===National politics===
{{further|Political party strength in Oklahoma}}
{{PresHead|place=Oklahoma|source=<ref>{{cite web|url=http://uselectionatlas.org/RESULTS/compare.php?year=2008&fips=40&f=1&off=0&elect=0&type=state|title=Presidential General Election Results Comparison—Oklahoma|publisher=US Election Atlas|access-date=December 29, 2009|author=Leip, David}}</ref>}}
<!-- PresRow should be {{PresRow|Year|Winning party|GOP vote #|Dem vote #|3rd party vote #|State}} -->
{{PresRow|2020|Republican|1,020,280|503,890|36,529|Oklahoma}}
{{PresRow|2016|Republican|949,136|420,375|83,481|Oklahoma}}
{{PresRow|2012|Republican|891,325|443,547|0|Oklahoma}}
{{PresRow|2008|Republican|960,165|502,496|0|Oklahoma}}
{{PresRow|2004|Republican|959,792|503,966|0|Oklahoma}}
{{PresRow|2000|Republican|744,337|474,276|15,616|Oklahoma}}
{{PresRow|1996|Republican|582,315|488,105|136,293|Oklahoma}}
{{PresRow|1992|Republican|592,929|473,066|324,364|Oklahoma}}
{{PresRow|1988|Republican|678,367|483,423|9,246|Oklahoma}}
{{PresRow|1984|Republican|861,530|385,080|9,066|Oklahoma}}
{{PresRow|1980|Republican|695,570|402,026|52,112|Oklahoma}}
{{PresRow|1976|Republican|545,708|532,442|14,101|Oklahoma}}
{{PresRow|1972|Republican|759,025|247,147|23,728|Oklahoma}}
{{PresRow|1968|Republican|449,697|301,658|191,731|Oklahoma}}
{{PresRow|1964|Democratic|412,665|519,834|0|Oklahoma}}
{{PresRow|1960|Republican|533,039|370,111|0|Oklahoma}}
{{PresRow|1956|Republican|473,769|385,581|0|Oklahoma}}
{{PresRow|1952|Republican|518,045|430,939|0|Oklahoma}}
{{PresRow|1948|Democratic|268,817|452,782|0|Oklahoma}}
{{PresRow|1944|Democratic|319,424|401,549|1,663|Oklahoma}}
{{PresRow|1940|Democratic|348,872|474,313|3,027|Oklahoma}}
{{PresRow|1936|Democratic|245,122|501,069|3,549|Oklahoma}}
{{PresRow|1932|Democratic|188,165|516,468|0|Oklahoma}}
{{PresRow|1928|Republican|394,046|219,174|5,207|Oklahoma}}
{{PresRow|1924|Democratic|226,242|255,798|46,375|Oklahoma}}
{{PresRow|1920|Republican|243,831|217,053|25,726|Oklahoma}}
{{PresRow|1916|Democratic|97,233|148,113|47,070|Oklahoma}}
{{PresRow|1912|Democratic|90,786|119,156|43,859|Oklahoma}}
{{PresFoot|1908|Democratic|110,474|122,363|22,146|Oklahoma}}
{{Main|Politics of Oklahoma}}

During the first half-century of statehood, Oklahoma was considered a [[Democratic Party (United States)|Democratic]] stronghold, being carried by the [[Republican Party (United States)|Republican Party]] in only two presidential elections ([[1920 United States presidential election|1920]] and [[1928 United States presidential election|1928]]). After the [[1948 United States presidential election|1948 election]], the state turned firmly Republican. Although registered Republicans were a minority in the state until 2015,<ref name="voters">{{cite web | url=http://www.ok.gov/elections/documents/VRStatsbycountyjan152015.pdf | title=Registration by Party as of January 15, 2015 | publisher=Oklahoma State Election Board | access-date=February 6, 2015 | archive-date=February 7, 2015 | archive-url=https://web.archive.org/web/20150207050926/http://www.ok.gov/elections/documents/VRStatsbycountyjan152015.pdf }}</ref> Oklahoma has been carried by Republican presidential candidates in all but one election since 1952: [[Lyndon B. Johnson]]'s [[1964 United States presidential election|1964 landslide victory]]. Every single county in the state has been won by the Republican candidate in each election since [[United States presidential election, 2004|2004]]. In fact, it was the only state where [[Barack Obama]] failed to carry any counties in [[2008 United States presidential election|2008]]. Oklahoma City was the largest city in the United States carried by Republican Donald Trump in both the 2016 and 2020 elections.

Democrats are strongest in urban areas, such as the inner parts of Oklahoma City and Tulsa, as well as the [[college town]]s of Norman and Stillwater, and areas which are most heavily [[African American]]. The party once held dominance in the eastern part of the state and [[Little Dixie (Oklahoma)|Little Dixie]] before the area gradually shifted Republican in the late 2000s. As of the 2020 election, Native American voters, 16% of the state's population, are split, with urban populations supporting the Democrats and rural reservation populaces favoring the Republicans.<ref>{{Cite news|date=2020-11-03|title=Oklahoma Voter Surveys: How Different Groups Voted|language=en-US|work=The New York Times|url=https://www.nytimes.com/interactive/2020/11/03/us/elections/ap-polls-oklahoma.html|access-date=2020-11-16|issn=0362-4331}}</ref>

Following the [[United States Census Bureau|2000 census]], the Oklahoma delegation to the [[United States House of Representatives|U.S. House of Representatives]] was reduced from six to five representatives, each serving one [[congressional district]]. Oklahoma has had an all-Republican congressional delegation since 2021, having previously had one from 2013 to 2019.

{| class="wikitable"
|+ Voter registration and party enrollment as of February 29, 2024<ref>[https://oklahoma.gov/elections/voter-registration/voter-registration-statistics/voter-registration-statistics-archive/2024-month-end-voter-registration-statistics.html 2024 Month-End Voter Registration Reports] [[Oklahoma State Election Board]]</ref>
|-
! colspan="2" | Party
! Number of voters
! Percentage
|-
| {{party color cell|Republican Party (United States)}}
| [[Republican Party (United States)|Republican]]
| style="text-align:center;" | 1,197,956
| style="text-align:center;" | 51.82%
|-
| {{party color cell|Democratic Party (United States)}}
| [[Democratic Party (United States)|Democratic]]
| style="text-align:center;" | 651,307
| style="text-align:center;" | 28.18%
|-
| {{party color cell|Libertarian Party (United States)}}
| [[Libertarian Party (United States)|Libertarian]]
| style="text-align:center;" | 22,050
| style="text-align:center;" | 0.95%
|-
| {{party color cell|Independent Party (United States)}}
| No affiliation/Other
| style="text-align:center;" | 440,204
| style="text-align:center;" | 19.04%
|-
! colspan="2" | Total
! style="text-align:center;" | 2,311,517
! style="text-align:center;" | 100.00%
|}