| | | Brazos County | TX | 48041 | | College Station-Bryan, TX 17780 | | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=BrazosCounty+TX |
| | | Brewster County | TX | 48043 | | | | Non-metropolitan | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=BrewsterCounty+TX |
| | | Briscoe County | TX | 48045 | | | | Non-metropolitan | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=BriscoeCounty+TX |
| | | Brooks County | TX | 48047 | | | | Non-metropolitan | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=BrooksCounty+TX |
| | | Brown County | TX | 48049 | | Brownwood, TX 15220 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=BrownCounty+TX |
| | | Burleson County | TX | 48051 | | College Station-Bryan, TX 17780 | | Outlying | metro county (urban) | mining-dependent | https://maps.google.com/?q=BurlesonCounty+TX |
| | | Burnet County | TX | 48053 | | | | Non-metropolitan | nonmetro county (rural) | recreation | https://maps.google.com/?q=BurnetCounty+TX |
| | | Caldwell County | TX | 48055 | | Austin-Round Rock, TX 12420 | | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=CaldwellCounty+TX |
| | | Calhoun County | TX | 48057 | | Port Lavaca, TX 38920 | Victoria-Port Lavaca, TX 544 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=CalhounCounty+TX |
| | | Callahan County | TX | 48059 | | Abilene, TX 10180 | | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=CallahanCounty+TX |
