|Hamilton County, Texas|
Location in the U.S. state of Texas
Texas's location in the U.S.
|Named for||James Hamilton Jr.|
|• Total||836 sq mi (2,165 km2)|
|• Land||836 sq mi (2,165 km2)|
|• Water||0.5 sq mi (1 km2), 0.06%|
|• ( 2010)||8,517|
|• Density||10/sq mi (4/km2)|
|Time zone||Central: UTC−6/ −5|
Hamilton County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2010 census, its population was 8,517.  The county seat is Hamilton.  The county was created in 1858.  It is named for James Hamilton Jr.,  a former governor of South Carolina who gave financial aid to the Republic of Texas.
Following Texas's independence from Mexico (1836) and its annexation by the United States (1845), Robert Carter and family became the first permanent white settlers in the county in 1854. The next year, settlers James Rice, Henry Standefer, Frederic Bookerman, William Beauchamp, and Asa Langford formed a community that later becomes the town of Hamilton. Asa Langford began Langford's Cove, which later grows into present-day Evant. In 1858 the Sixth Texas Legislature formed Hamilton County, named after James Hamilton Jr., from parts of Comanche, Bosque, and Lampasas counties. In 1858, Hamilton was named the county seat.
Despite growing white settlements in Texas, Indian tribal presences remained. In 1867, Comanche raiders attacked a school where Ann Whitney was the teacher. She helped students escape before finally succumbing to 18 Comanche arrows.  
By 1900, cotton cultivation had spread to almost 47,500 acres (192 km2) of county land. By 1907, the Stephenville North and South Texas Railway had connected Hamilton with Stephenville. The St. Louis Southwestern Railway of Texas connected Hamilton with Gatesville and Comanche in 1911.
In 1934, the Civil Works Administration's payroll included 747 Hamilton County men, who together earned about $2,000 per day.
In 1950, Ollie P. Roberts (also known as Ollie L. Roberts, "Brushy Bill" Roberts, or William Henry Roberts), a resident of Hico during the late 1940s, claimed to have been the outlaw Billy The Kid. The assertion is based on a legend that Patrick F. Garrett helped Billy fake his own death. Hico Chamber of Commerce responded by opening a Billy The Kid Museum. 
- U.S. Highway 84
- U.S. Highway 281
- State Highway 6
- State Highway 22
- State Highway 36
- State Highway 220
- Erath County (north)
- Bosque County (northeast)
- Coryell County (southeast)
- Lampasas County (south)
- Mills County (southwest)
- Comanche County (northwest)
|U.S. Decennial Census
1850–2010  2010–2014 
As of the census  of 2000, there were 8,229 people, 3,374 households, and 2,324 families residing in the county. The population density was 10 people per square mile (4 per km²). There were 4,455 housing units at an average density of 5 per square mile (2 per km²). The racial makeup of the county was 93.81% White, 0.15% (12) Black or African American, 0.44% (36) Native American, 0.15% (12) Asian, 0.05% (4) Pacific Islander, 4.36% from other races, and 1.05% from two or more races. 7.41% of the population were Hispanic or Latino of any race.
There were 3,374 households out of which 27.40% had children under the age of 18 living with them, 58.20% were married couples living together, 7.70% had a female householder with no husband present, and 31.10% were non-families. 28.40% of all households were made up of individuals and 17.40% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.89. As of the 2010 census, there were about 2.9 same-sex couples per 1,000 households in the county. 
In the county, the population was spread out with 23.80% under the age of 18, 6.00% from 18 to 24, 22.90% from 25 to 44, 23.80% from 45 to 64, and 23.60% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 93.50 males. For every 100 females age 18 and over, there were 87.10 males.
The median income for a household in the county was $31,150, and the median income for a family was $39,494. Males had a median income of $26,703 versus $20,192 for females. The per capita income for the county was $16,800. About 10.60% of families and 14.20% of the population were below the poverty line, including 21.20% of those under age 18 and 13.80% of those age 65 or over.
Hamilton County is currently listed as part of the Dallas- Fort Worth DMA. Local media outlets include: KDFW-TV, KXAS-TV, WFAA-TV, KTVT-TV, KERA-TV, KTXA-TV, KDFI-TV, KDAF-TV, and KFWD-TV. Although located in Central Texas and a neighboring county of the Killeen-Temple-Fort Hood Metropolitan Statistical Area. Meaning all of the Waco/ Temple/ Killeen market stations also provide coverage for Hamilton County. They include: KCEN-TV, KWTX-TV, KXXV-TV, KWKT-TV, KNCT (TV), and KAKW-DT. Northland Cable Television continues to offer all of the above stations in the cities of Hico and Hamilton.
- National Register of Historic Places listings in Hamilton County, Texas
- Recorded Texas Historic Landmarks in Hamilton County
- "State & County QuickFacts". United States Census Bureau. Archived from the original on July 11, 2011. Retrieved December 17, 2013.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- "Texas: Individual County Chronologies". Texas Atlas of Historical County Boundaries. The Newberry Library. 2008. Retrieved May 24, 2015.
- Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 148.
- Handbook of Texas, Hamilton County
- Texas Historical Markers, Ann Whitney Archived 2012-03-01 at the Wayback Machine.
- Texas Escapes, Details of Comanche Attack
- Hico Old Settlers' Reunion Archived 2010-03-25 at the Wayback Machine.
- Billy The Kid Legend Archived 2010-03-30 at the Wayback Machine.
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved April 28, 2015.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Retrieved April 28, 2015.
- "Texas Almanac: Population History of Counties from 1850–2010" (PDF). Texas Almanac. Retrieved April 28, 2015.
- "American FactFinder". United States Census Bureau. Retrieved 2011-05-14.
- Where Same-Sex Couples Live, June 26, 2015, retrieved July 6, 2015
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 2018-07-25.