- D'Hanis
- Daingerfield
- Dalhart
- DALLAM CO.
- Dallam SWCD
- DALLAS CO.
- Dallas Skyline
- Dalworth SWCD
- Damon
- Danbury
- Darrouzett
- David Frazier
- Davy Crockett-Trinity SWCD
- Dawson
- Dawson - Welch
- DAWSON CO.
- Dawson County SWCD
- Dayton
- De Leon
- De Soto
- DEAF SMITH CO.
- Decatur
- Deer Park
- Dekalb
- Dell City
- DELTA CO.
- Delta SWCD
- Denison
- Denton
- DENTON CO.
- Denton County SWCD
- Denton Guyer
- Denton-Braswell
- Denver City
- Detroit
- Devil's River SWCD
- Devine
- Deweyville
- DEWITT CO.
- DeWitt County SWCD
- Diamond Hill-Jarvis
- Diboll
- DICKENS CO.
- Dickinson
- Dilley
- Dime Box
- DIMMIT CO.
- Dimmit County SWCD
- Dimmitt
- Dobie
- Dodd City
- DONLEY CO.
- Donley County SWCD
- Donna
- Donna North
- Douglass
- Dr. Leo Cigarroa
- Dripping Springs
- Dubiski Career High
- Dublin
- Duck Creek SWCD
- Dulles
- Dumas
- Duncanville
- DUVAL CO.