Log submissions must use the approved four-letter county abbreviation for the exchange. The list is below or can be downloaded as a file: .DOC | .PDF | .TXT
| County | Code |
A | |
| Anderson | ANDE |
| Andrews | ANDR |
| Angelina | ANGE |
| Aransas | ARAN |
| Archer | ARCH |
| Armstrong | ARMS |
| Atascosa | ATAS |
| Austin | AUST |
B | |
| Bailey | BAIL |
| Bandera | BAND |
| Bastrop | BAST |
| Baylor | BAYL |
| Bee | BEE |
| Bell | BELL |
| Bexar | BEXA |
| Blanco | BLAN |
| Borden | BORD |
| Bosque | BOSQ |
| Bowie | BOWI |
| Brazoria | BZIA |
| Brazos | BZOS |
| Brewster | BREW |
| Briscoe | BRIS |
| Brooks | BROO |
| Brown | BROW |
| Burleson | BURL |
| Burnet | BURN |
C | |
| Caldwell | CALD |
| Calhoun | CALH |
| Callahan | CALL |
| Cameron | CMRN |
| Camp | CAMP |
| Carson | CARS |
| Cass | CASS |
| Castro | CAST |
| Chambers | CHAM |
| Cherokee | CHER |
| Childress | CHIL |
| Clay | CLAY |
| Cochran | COCH |
| Coke | COKE |
| Coleman | COLE |
| Collin | COLN |
| Collingsworth | COLW |
| Colorado | COLO |
| Comal | COML |
| Comanche | COMA |
| Concho | CONC |
| Cooke | COOK |
| Coryell | CORY |
| Cottle | COTT |
| Crane | CRAN |
| Crockett | CROC |
| Crosby | CROS |
| Culberson | CULB |
D | |
| Dallam | DALM |
| Dallas | DALS |
| Dawson | DAWS |
| Deaf Smith | DSMI |
| Delta | DELT |
| Denton | DENT |
| Dewitt | DEWI |
| Dickens | DICK |
| Dimmit | DIMM |
| Donley | DONL |
| Duval | DUVA |
E | |
| Eastland | EAST |
| Ector | ECTO |
| Edwards | EDWA |
| El Paso | EPAS |
| Ellis | ELLI |
| Erath | ERAT |
F | |
| Falls | FALL |
| Fannin | FANN |
| Fayette | FAYE |
| Fisher | FISH |
| Floyd | FLOY |
| Foard | FOAR |
| Fort Bend | FBEN |
| Franklin | FRAN |
| Freestone | FREE |
| Frio | FRIO |
G | |
| Gaines | GAIN |
| Galveston | GALV |
| Garza | GARZ |
| Gillespie | GILL |
| Glasscock | GLAS |
| Goliad | GOLI |
| Gonzales | GONZ |
| Gray | GRAY |
| Grayson | GRSN |
| Gregg | GREG |
| Grimes | GRIM |
| Guadalupe | GUAD |
H | |
| Hale | HALE |
| Hall | HALL |
| Hamilton | HAMI |
| Hansford | HANS |
| Hardeman | HDMN |
| Hardin | HRDN |
| Harris | HARR |
| Harrison | HRSN |
| Hartley | HART |
| Haskell | HASK |
| Hays | HAYS |
| Hemphill | HEMP |
| Henderson | HEND |
| Hidalgo | HIDA |
| Hill | HILL |
| Hockley | HOCK |
| Hood | HOOD |
| Hopkins | HOPK |
| Houston | HOUS |
| Howard | HOWA |
| Hudspeth | HUDS |
| Hunt | HUNT |
| Hutchinson | HUTC |
I | |
| Irion | IRIO |
J | |
| Jack | JACK |
| Jackson | JKSN |
| Jasper | JASP |
| Jeff Davis | JDAV |
| Jefferson | JEFF |
| Jim Hogg | JHOG |
| Jim Wells | JWEL |
| Johnson | JOHN |
| Jones | JONE |
K | |
| Karnes | KARN |
| Kaufman | KAUF |
| Kendall | KEND |
| Kenedy | KENY |
| Kent | KENT |
| Kerr | KERR |
| Kimble | KIMB |
| King | KING |
| Kinney | KINN |
| Kleberg | KLEB |
| Knox | KNOX |
L | |
| Lamar | LAMA |
| Lamb | LAMB |
| Lampasas | LAMP |
| La Salle | LSAL |
| Lavaca | LAVA |
| Lee | LEE |
| Leon | LEON |
| Liberty | LIBE |
| Limestone | LIME |
| Lipscomb | LIPS |
| Live Oak | LIVO |
| Llano | LLAN |
| Loving | LOVI |
| Lubbock | LUBB |
| Lynn | LYNN |
M | |
| Madison | MADI |
| Marion | MARI |
| Martin | MART |
| Mason | MASO |
| Matagorda | MATA |
| Maverick | MAVE |
| McCulloch | MCUL |
| McLennan | MLEN |
| McMullen | MMUL |
| Medina | MEDI |
| Menard | MENA |
| Midland | MIDL |
| Milam | MILA |
| Mills | MILL |
| Mitchell | MITC |
| Montague | MONT |
| Montgomery | MGMY |
| Moore | MOOR |
| Morris | MORR |
| Motley | MOTL |
N | |
| Nacogdoches | NACO |
| Navarro | NAVA |
| Newton | NEWT |
| Nolan | NOLA |
| Nueces | NUEC |
O | |
| Ochiltree | OCHI |
| Oldham | OLDH |
| Orange | ORAN |
P | |
| Palo Pinto | PPIN |
| Panola | PANO |
| Parker | PARK |
| Parmer | PARM |
| Pecos | PECO |
| Polk | POLK |
| Potter | POTT |
| Presidio | PRES |
R | |
| Rains | RAIN |
| Randall | RAND |
| Reagan | REAG |
| Real | REAL |
| Red River | RRIV |
| Reeves | REEV |
| Refugio | REFU |
| Roberts | ROBE |
| Robertson | RBSN |
| Rockwall | ROCK |
| Runnels | RUNN |
| Rusk | RUSK |
S | |
| Sabine | SABI |
| San Augustine | SAUG |
| San Jacinto | SJAC |
| San Patricio | SPAT |
| San Saba | SSAB |
| Schleicher | SCHL |
| Scurry | SCUR |
| Shackelford | SHAC |
| Shelby | SHEL |
| Sherman | SHMN |
| Smith | SMIT |
| Somervell | SOME |
| Starr | STAR |
| Stephens | STEP |
| Sterling | STER |
| Stonewall | STON |
| Sutton | SUTT |
| Swisher | SWIS |
T | |
| Tarrant | TARR |
| Taylor | TAYL |
| Terrell | TERL |
| Terry | TERY |
| Throckmorton | THRO |
| Titus | TITU |
| Tom Green | TGRE |
| Travis | TRAV |
| Trinity | TRIN |
| Tyler | TYLE |
U | |
| Upshur | UPSH |
| Upton | UPTO |
| Uvalde | UVAL |
V | |
| Val Verde | VVER |
| Van Zandt | VZAN |
| Victoria | VICT |
W | |
| Walker | WALK |
| Waller | WALL |
| Ward | WARD |
| Washington | WASH |
| Webb | WEBB |
| Wharton | WHAR |
| Wheeler | WHEE |
| Wichita | WICH |
| Wilbarger | WILB |
| Willacy | WILY |
| Williamson | WMSN |
| Wilson | WLSN |
| Winkler | WINK |
| Wise | WISE |
| Wood | WOOD |
Y | |
| Yoakum | YOAK |
| Young | YOUN |
Z | |
| Zapata | ZAPA |
| Zavala | ZAVA |