The cost of living in Texas (TX) is lower than the nationwide average.The average yearly pay in Texas is $51,201.00, which is higher than the U.S. average annual salary by $1,393.00. The consumer price index (CPI) of 223 in Texas is 4.29% lower than the U.S. city average CPI of 233.The sales tax is 6.25%.he cost of living in Texas (TX) is lower than the nationwide average.