Division One of the Lone Star Region hosts 30 counties in north central Texas. The counties are

1 Hardeman
2 Wilbarger
3 Wichita
4 Clay
5 Montaque
6 Cooke
7 Foard
8 Knox
9 Baylor
10 Archer
11 Haskell
12 Throckmorton
13 Young
14 Jack
15 Wise
16 Denton
17 Shackelford
18 Stephens
19 Palo Pinto
20 Parker
21 Tarrant
22 Callahan
23 Eastland
24 Erath
25 Hood
26 Johnson
27 Coleman
28 Brown
29 Comanche
30 Somervell