| | Brazos County | TX | 48041 | | College Station-Bryan, TX 17780 | | Central | Metro > 250k < 1m | federal/state
government-dependent | https://maps.google.com/?q=BrazosCounty+TX |
| | Brewster County | TX | 48043 | | | | | Non-metro > 5K <
20k non-metro-adjacent | federal/state
government-dependent | https://maps.google.com/?q=BrewsterCounty+TX |
| | Briscoe County | TX | 48045 | | | | | Non-metro < 5k
metro-adjacent | farm-dependent | https://maps.google.com/?q=BriscoeCounty+TX |
| | Brooks County | TX | 48047 | | Alice, TX 10860 | Corpus
Christi-Kingsville-Alice,
TX 204 | Outlying | Non-metro < 5k
non-metro-adjacent | federal/state
government-dependent | https://maps.google.com/?q=BrooksCounty+TX |
| | Brown County | TX | 48049 | | Brownwood, TX 15220 | | Central | Non-metro >20k
non-metro adjacent | nonspecialized | https://maps.google.com/?q=BrownCounty+TX |
| | Burleson County | TX | 48051 | | College Station-Bryan, TX 17780 | | Outlying | Metro > 250k < 1m | mining-dependent | https://maps.google.com/?q=BurlesonCounty+TX |
| | Burnet County | TX | 48053 | | | | | Non-metro > 5k <
20k metro-adjacent | recreation | https://maps.google.com/?q=BurnetCounty+TX |
| | Caldwell County | TX | 48055 | | Austin-Round Rock-San
Marcos, TX 12420 | | Outlying | Metro > 1m | nonspecialized | https://maps.google.com/?q=CaldwellCounty+TX |
| | Calhoun County | TX | 48057 | | Port Lavaca, TX 38920 | Victoria-Port Lavaca, TX 544 | Central | Non-metro > 5k <
20k metro-adjacent | manufacturing-dependent | https://maps.google.com/?q=CalhounCounty+TX |
| | Callahan County | TX | 48059 | | Abilene, TX 10180 | Abilene-Sweetwater, TX 101 | Outlying | Metro < 250k | farm-dependent | https://maps.google.com/?q=CallahanCounty+TX |