Texas was originally part of Mexico, achieving independence as the Republic of Texas in 1836. The United States acquired the area of Texas through annexation and Texas was admitted to the Union on March 1, 1845, as the 28th state. At the time of statehood, Texas included part of present-day Colorado, Kansas, New Mexico, Oklahoma, and Wyoming. Texas sold territory to the United States in 1850 to assume generally the same boundary as the present state, but there were some subsequent revisions. In 1896, the Supreme Court ruled the Texas claim to the Greer County area in southwest Oklahoma to be invalid, and the area was officially deemed to be part of Oklahoma. An additional boundary dispute with Oklahoma was settled in 1930 by adding a narrow strip of territory to Texas. As the Rio Grande has changed its course, the United States and the Republic of Mexico have made periodic adjustments to their boundary that affected the boundary of Texas.
Census data for Texas are available beginning with the 1850 census.
See: Geographic Terms & Concepts
Counties & County Equivalents
There are 254 counties in Texas. All counties are functioning governmental units, each governed by a Commissioners Court.
Interactive Map of Texas Counties | Static Overview Map of Texas Counties
There are 862 county subdivisions in Texas. They are all census county divisions (CCDs), which are delineated for statistical purposes, have no legal function, and are not governmental units.
Places (Incorporated Cities, Towns & Census Designated Places)
Texas has 1,752 places; 1,214 incorporated places and 538 census designated places (CDPs). The incorporated places consist of 956 cities, 234 towns, and 24 villages. Places in Texas have extensive annexation powers. Nesbitt town and Rangerville village are inactive places in Texas. A minimum population of 200 is required for incorporation.
Alphabetical List of Cities, Towns, CDPs and Other Populated Places
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q, R | S | T | U, V | W, X, Y, Z
Texas Civil Features
Texas Civil Features: Political Subdivisions, Native Areas, Land Grants, etc. - sorted by Census Class Codes.
Metropolitan and Micropolitan Stastical Areas
There are 25 Metropolitan and 43 Micropolitan Statistical Areas in Texas. TX Metopolitan & Micropolitan Areas
Texas ZIP Code Tabulation Areas
There are 1,939 ZIP Code tabulation areas (ZCTAs) in Texas. View Texas ZIP Codes and ZIP Code Maps.
There are 7 elementary school districts, 7 secondary school districts, and 1,022 unified school districts in Texas. View Texas Public and Private Schools.
Texas has 36 congressional districts. An interactive map shows the contact information for each Representative as well as the boundaries for each Texas district. View Map of Texas Congressional Districts.
State Legislative Districts
There are 31 state senate districts and 150 state house districts in Texas.
American Indian Areas
Texas has three federally recognized American Indian reservations, two with off-reservation trust land.
Other Information Of General Geographic Interest
Data users should be aware of the large number of statistical and administrative areas in Texas. Texas geographical files are large and complex. The TIGER/Line Shapefiles for Texas are the largest of those for any state.
Texas is the only state to enter the United States by treaty as opposed to territorial annexation. This allows the Texas flag to fly at the same height as the US flag.