City nickname: Space City Location in the state of Texas Founded â Incorporated 1836 1837 Counties Harris County Fort Bend County Montgomery County Mayor Bill White Area â Land â Water 601. ... ... Galveston is a city and island located in Galveston County, Texas. ... Terrell County is a county located in the state of Texas. ... Nacogdoches County (pronounced nack-a-doe-chis) is a county located in the state of Texas. ... Milam County is a county located in the state of Texas. ... Midland County is a county located in the state of Texas. ... Lubbock County is a county located in the state of Texas. ... Llano County is a county located in the state of Texas. ... Irving is a city located in the U.S. state of Texas within Dallas County. ... Denison is a city located in Grayson County, Texas. ... Flag of Lubbock Lubbock is the ninth-largest city in the state of Texas, located in the northwestern part of the state, a region known historically as the Llano Estacado. ... Baytown is a city located in the U.S. state of Texas, in Harris County with small portion in Chambers County. ... Texas City is a city located in Galveston County, Texas. ... Downtown Amarillo, 2005 Amarillo is a city located in the U.S. state of Texas and is part of the West Texas region. ... The Flag of Texas is defined by law as follows: The state flag consists of a rectangle with a width to length ratio of two to three containing: (1) a blue vertical stripe one-third the entire length of the flag wide, and two equal horizontal stripes, the upper stripe... Red counties show the core of East Texas, counties shown as pink may or may not be included in East Texas, and thus their inclusion varies from source to source. ...