Texas does have an unemployment rate below the national average. It's also one of the poorest states in the country. It has one of the highest rates of people lacking health insurance. It has the second lowest percentage of residents who lack a high school diploma.
Also, you need to check your population stats. Texas gained seats because it grew faster than other states. The only state to lose population was Michigan.
Not true!
The 435 seats in the House of Representatives are divided among the states every 10 years based on new Census data. A look at states that could possibly gain or lose if reapportionment occurred today. Number of House seats in parenthesis:
Winners
Texas (32): 4 possible seats gained
Florida (25): 2 possible seats gained
Arizona (8): 1 possible seat gained
Georgia (3): 1 possible seat gained
Nevada (3): 1 possible seat gained
South Carolina (6): 1 possible seat gained
Utah (3): 1 possible seat gained
Washington (9): 1 possible seat gained
Losers
New York (29): 2 possible seats lost
Ohio (18): 2 possible seats lost
Illinois (19): 1 possible seat lost
Iowa (5): 1 possible seat lost
Louisiana (7): 1 possible seat lost
Massachusetts (10): 1 possible seat lost
Michigan (15): 1 possible seat lost
Missouri (9): 1 possible seat lost
New Jersey (13): 1 possible seat lost
Pennsylvania (19): 1 possible seat