Location of Washington, Oklahoma
WASHINGTON OKLAHOMA Latitude and Longitude:
|• Total||1.0 sq mi (2.7 km2)|
|• Land||1.0 sq mi (2.7 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||1,112 ft (339 m)|
|• Density||503.8/sq mi (194.5/km2)|
|Time zone||UTC-6 ( Central (CST))|
|• Summer ( DST)||UTC-5 (CDT)|
|FIPS code||40-78700 |
|GNIS feature ID||1099383 |
A post office called Washington has been in operation since 1904.  The town was NOT named after George Washington, first President of the United States.  The post office charter was granted May 10, 1904. According to the Encyclopedia of Oklahoma History and Culture, the name was actually chosen to honor Caddo chief "Little Boy" George Washington, who had lived nearby. 
When the Oklahoma Central Railway was built through McClain County in 1907, local resident Hoyt Turner and his Chickasaw-Choctaw wife, Daisy Willis, petitioned the federal court at Muskogee to remove the restrictions from a surplus allotment east of their farm so that a townsite could be established. The request was approved on December 24, 1907, shortly after statehood became effective, and Washington became the first townsite to have tribal restrictions removed for that reason. 
Washington is located at .
According to the United States Census Bureau, the town has a total area of 1.0 square mile (2.6 km2), all of it land.
|U.S. Decennial Census |
As of the census  of 2000, there were 520 people, 186 households, and 146 families residing in the town. The population density was 503.8 people per square mile (194.9/km²). There were 192 housing units at an average density of 186.0 per square mile (72.0/km²). The racial makeup of the town was 92.12% White, 2.88% Native American, 1.15% Pacific Islander, 1.92% from other races, and 1.92% from two or more races. Hispanic or Latino of any race were 4.23% of the population.
There were 186 households out of which 42.5% had children under the age of 18 living with them, 65.1% were married couples living together, 9.7% had a female householder with no husband present, and 21.0% were non-families. 18.3% of all households were made up of individuals and 10.8% had someone living alone who was 65 years of age or older. The average household size was 2.80 and the average family size was 3.18.
31.7% of the population was under the age of 18, 6.7% were 18 to 24, 31.9% were 25 to 44, 17.5% from 45 were 64, and 12.1% were 65 years of age or older. The median age was 32 years. For every 100 females, there were 94.8 males. For every 100 females age 18 and over, there were 91.9 males.
The median income for a household in the town was $31,875, and the median income for a family was $36,806. Males had a median income of $31,429 versus $20,089 for females. The per capita income for the town was $14,309. About 13.1% of families and 17.8% of the population were below the poverty line, including 23.0% of those under age 18 and 18.8% of those age 65 or over.
Washington is the home of Washington Public Schools, which comprises a single K-12 school at 101 E. Kirby, Washington, OK 73093. The mascot is the warrior and school colors are red and white. As of the 2006–07 school year [update], the graduation rate was 94.7%, there were 17.4 students per teacher, and 916 enrolled students. 
Sports played by students include: softball, football, basketball, baseball, cheerleading, golf, and track. Extra-curricular activities include academic team, band, FCCLA, FFA, newspaper, NHS, science club, STUCO, and yearbook. 
- Lometa Odom (1933—2017) basketball player and coach, member of the Women's Basketball Hall of Fame
- Nick Blackburn, former pitcher for the Minnesota Twins, became the baseball coach for the Washington High School after retiring from professional baseball in 2015. 
- James Winchester, long snapper for the Kansas City Chiefs of the National Football League 
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "McClain County". Jim Forte Postal History. Retrieved 2 May 2015.
- "Washington, Va., Oldest Of Name". The Free Lance-Star. Oct 3, 1932. p. 3. Retrieved 2 May 2015.
- Burns, Hoyt. "Washington." Encyclopedia of Oklahoma History and Culture. Accessed February 10, 2019.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- Official State Map (Map) (2008 ed.). Oklahoma Department of Transportation.
- "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2016". Retrieved July 2, 2016.
- "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
- "Washington High School in Washington, OK 73093". LocalSchoolDirectory.com. Retrieved May 12, 2014.
- "Washington Public Schools". Washington Public Schools. Retrieved May 12, 2014.
- Unruh, Jacob. "High school baseball: Former MLB pitcher Nick Blackburn giving back to baseball." NewsOK. April 25, 2015. Accessed June 20, 2015.
- "James Winchester Player profile". Chiefs.com.