D
- Dahinda
- Dahlgren
- Dailey
- Dakota
- Dale
- Dallas City
- Dalton City
- Dalzell
- Damascus
- Damiansville
- Damon
- Dana
- Danforth
- Danvers
- Danville
- Danway
- Dareville
- Darien
- Darmstadt
- Darrow
- Darwin
- Davis
- Davis Junction
- Davy
- Dawleys
- Dawson
- Dawson Park
- Daysville
- Dayton
- Dayton
- De Camp
- Decatur
- Decorra
- Deer Creek
- Deerfield
- Deer Grove
- Deering City
- Deer Lake
- Deer Park
- Deer Park
- Deer Ridge
- Deers
- Dees
- Degognia
- De Kalb
- Delafield
- Deland
- De Land
- Delavan
- Delbert Egan Housing Project
- Delhi
- Delmar
- Del Mar Woods
- Delong
- Delrey
- Delta
- Delta
- Delwood
- Denmark
- Dennison
- Denny
- Denrock
- Denver
- Depler Springs
- DePue
- Derby
- Derby
- Deselm
- De Soto
- Des Plaines
- Detroit
- Devereux Heights
- Dewey
- De Witt
- Dewmaine
- Dexter
- Diamond
- Diamond City
- Diamond Cross
- Diamond Lake
- Dickerson
- Dickeys
- Dieterich
- Dillon
- Dillsburg
- Dimmick
- Diona
- Disco
- Diswood
- Divernon
- Divers
- Divide
- Divine
- Dix
- Dixmoor
- Dixon
- Dixon Springs
- Doddsville
- Dogwood
- Dollville
- Dolton
- Dongola
- Donkville
- Donnellson
- Donny Hill Meadows
- Donovan
- Dorans
- Dorchester
- Dorsey
- Douglas
- Douglas
- Dover
- Dow
- Dowell
- Downers Grove
- Downs
- Doyles
- Drake
- Dressor
- Drummond
- Dry Hill
- Dubois
- Dudley
- Dudleyville
- Duncan
- Duncan Mills
- Duncanville
- Dundas
- Dunfermline
- Dunkle
- Dunlap
- Dunn
- Dupo
- Du Quoin
- Durand
- Durham
- Durley
- Dutch Mills
- Duvall
- Dwight
- Dyer
- Dykersburg