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Texas Eight Major Regions

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PLEASE SELECT REGION TO LINK TO RELATED CHAPTER TEXT

Population figures are from 1990.

Source (includes all regional graphs): Texas Water Development Board, Water for Texas 1990: Today and Tomorrow (Austin: TWDB, 1990); and Texas Water Development Board, "Draft Projections of Population and Municipal Water Use," 1996 Consensus Water Plan.

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UPPER RIO GRANDE AND FAR WEST TEXAS
WATER SUPPLY AND DEMAND DISTRIBUTION, 1990 - 2040
Major Cities: El PasoAverage Annual Precipitation:8 to 18 inches
Population, 1990:615,196Annual Net Evaporation Rate:66 inches
Total Water Use, 1990:526,103 acre-feetMajor Economic Sectors:Mineral Production,Manufacturing, Retail and Wholesale Trades, Agriculture, Tourism and International Trade.
Population, 2040:1,367,668Physiography:Flat to rolling to mountainous, sparsely-vegetated desert with flat, floodplain areas adjacent to Rio Grande.
Total Water Use, 2040:559,245 acre-feetPrimary River:Rio Grande
Major Aquifer:Hueco-Mesilla Bolson

HIGH PLAINS AND TRANS-PECOS
WATER SUPPLY AND DEMAND DISTRIBUTION, 1990 - 2040
Major Cities:Lubbock, Amarillo, Midland, OdessaAverage Annual Precipitation:10 to 22 inches
Population, 1990:1, 097, 609Annual Net Evaporation Rate:53 inches
Total Water Use, 1990:6, 113, 219 acre-feetMajor Economic Sectors:Agriculture, Agri-business, Mineral Production, Manufacturing, Retail and Wholesale Trade.
Population, 2040:1,583,323Physiography:In the High Plains, level plains in the south and southeast changing to arid, flat plains of Trans-Pecos area rising to high mountains.
Total Water Use, 2040:5,320,539 acre-feetPrimary Rivers:Canadian, Red, Brazos, Colorado, Pecos
Major Aquifers:Ogallala, Cenozoic, Pecos,Alluvium, Edwards-Trinity

WEST CENTRAL TEXAS
WATER SUPPLY AND DEMAND DISTRIBUTION, 1990 - 2040
Major Cities: Abilene, Wichita FallsAverage Annual Precipitation:19 to 30 inches
Population, 1990:518,465Annual Net Evaporation Rate:51 inches
Total Water Use, 1990:370, 955 acre-feetMajor Economic Sectors:Mineral Production, Agriculture, Agri-Business, Manufacturing, Retail and Wholesale Trade, Government.
Population, 2040:603,856Physiography:Rolling prairies in the west turn to flat, relatively treeless prarie and cross timber country in the east.
Total Water Use, 2040:344,896Primary Rivers:Red, Colorado, Brazos
Major Aquifer:Seymour

NORTH TEXAS
WATER SUPPLY AND DEMAND DISTRIBUTION, 1990 - 2040
Major Cities: Dallas, Fort Worth, Denton, Sherman, Waco, TempleAverage Annual Precipitation:26 to 40 inches
Population, 1990:4,852,254Annual Net Evaporation Rate:41 inches
Total Water Use, 1990:1,258,691 acre-feetMajor Economic Sectors:Manufacturing, Retail and Wholesale Trade, Finance, Services, Transportation and Tourism.
Population, 2040:9,136,942Physiography:From flat to rolling wooded cross timbers in the west to wooded rolling hills and flat lands of the Blacklandsand Post Oak Belt in the east.
Total Water Use, 2040:1,934,135 acre-feetPrimary Rivers:Red, Trinity, Brazos
Major Aquifer:Trinity

NORTHEAST TEXAS
WATER SUPPLY AND DEMAND DISTRIBUTION, 1990 -2040
Major Cities:Texarkana, Tyler, Longview, MarshallAverage Annual Precipitation:42 to 48 inches
Population, 1990: 901, 300Annual Net Evaporation Rate:20 inches
Total Water Use, 1990:595, 849 acre-feetMajor Economic Sectors:Manufacturing, Wholesale and Retail Trade, Services, Mineral Production, Agriculture and Agri-business.
Population, 2040:1,127,011Physiography:Flat wooded areas to very wooded rolling hills and river valleys.
Total Water Use, 2040:785,981 acre-feetPrimary Rivers:Red, Sulphur, Cypress, Sabine, Neches
Major Aquifer:Carrizo-Wilcox

SOUTH CENTRAL TEXAS
WATER SUPPLY AND DEMAND DISTRIBUTION, 1990 - 2040
Major Cities: San Antonio, Austin, San Angelo, Del RioAverage Annual Precipitation:14 to 42 inches
Population, 1990:2, 718, 316Annual Net Evaporation Rate:17 inches
Total Water Use, 1990:1, 564, 590 acre-feetMajor Economic Sectors:Manufacturing, Retail and Wholesale Trade, Agriculture, Agri-business, Mineral Production, Government and Tourism.
Population, 2040:6,453,944Physiography:Rolling, grassy prairies in the west leading to hilly, wooded hill country in the central and eastern parts of the region.
Total Water Use, 2040:1,995,852 acre-feetPrimary Rivers:Colorado, Guadalupe, Nueces, San Antonio, Rio Grande
Major Aquifers:Edwards-BFZ, Edwards-Trinity, Carrizo-Wilcox

SOUTHEAST TEXAS AND UPPER GULF COAST
WATER SUPPLY AND DEMAND DISTRIBUTION, 1990 - 2040
Major Cities: Houston, Galveston, Beaumont, Orange, Port Arthur, VictoriaAverage Annual Precipitation:32 to 56 inches
Population, 1990:4,933,364Annual Net Evaporation Rate:45 inches
Total Water Use, 1990:3,698,499 acre-feetMajor Economic Sectors:Manufacturing, Mineral Production, Finance, Services, Retail and Wholesale Trade, Agriculture, Tourism, Commercial Shipping and Fishing and Government.
Population, 2040:9,437,876Physiography:Rolling, hilly wooded area in East Texas turning into grassy, flat coastal plains.
Total Water Use, 2040:4,195,071 acre-feetPrimary Rivers:Sabine, Neches, Trinity, San Jacinto, Brazos, Colorado, Lavaca, Guadalupe
Major Aquifer:Gulf Coast

SOUTH TEXAS AND LOWER GULF COAST
WATER SUPPLY AND DEMAND DISTRIBUTION, 1990 - 2040
Major Cities: Corpus Christi, Laredo, McAllen, BrownsvilleAverage Annual Precipitation:21 to 40 inches
Population, 1990:1, 350, 320Annual Net Evaporation Rate:53 inches
Total Water Use, 1990:1,654,501 acre-feetMajor Economic Sectors:Agriculture, Agri-business, Manufacturing, Retail and Wholesale Trade, Services, Mineral Production, Tourism and International Trade.
Population, 2040:3,282,085Physiography:Flat, grassy coastal plains with flood plains near the coast and Rio Grande river valley.
Total Water Use, 2040:1,593,503 acre-feetPrimary Rivers:Nueces, Rio Grande
Major Aquifer:Gulf Coast

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