- Dacula
- Dade City
- Dagsboro
- Daleville
- Dalhart
- Dallas
- Dallas Center
- Dallastown
- Dalton
- Damascus
- Dameron
- Dames Quarter
- Dana Point
- Danbury
- Danby
- Dane
- Danese
- Dania Beach
- Daniels
- Danvers
- Danville
- Daphne
- Darby
- Darien
- Darlington
- Darnestown
- Dartmouth
- Davenport
- David City
- Davidson
- Davidsonville
- Davidsville
- Davie
- Davis
- Davison
- Dawson
- Dawsonville
- Dayton
- Daytona Beach
- De Pere
- De Soto
- Deal
- Deal Island
- Deale
- Dearborn
- Dearborn Heights
- DeBary
- Decatur
- Dedham
- Deer Park
- Deerfield
- Deerfield Beach
- Defiance
- DeKalb
- Del Mar
- Del Rey Oaks
- Delafield
- DeLand
- Delano
- Delaplane
- Delaware
- Delaware City
- Delhi
- Delhi charter Township
- Delmar
- Delmont
- Delphos
- Delran
- Delray Beach
- Delta
- Deltaville
- Deltona
- Demarest
- Demorest
- Denison
- Denton
- Denver
- Denville
- Depew
- Deptford Township
- Derry
- Derwood
- Des Moines
- Des Peres
- Des Plaines
- DeSoto
- Destin
- Destrehan
- Detour
- Detroit
- Detroit Lakes
- Devon
- Dewar
- Dewey Beach
- Dexter
- DFW Airport
- Diamond
- Diamond Bar
- Diamond Springs
- Diboll
- Dickerson
- Dickinson
- Dickson
- Dillsburg
- District Heights
- Dix Hills
- Dixon
- Dobbs Ferry
- Dobson
- Dodge Center
- Donegal
- Donora
- Doral
- Doraville
- Dorset
- Dothan
- Double Oak
- Douglassville
- Douglasville
- Dover
- Dover Plains
- Dow City
- Downers Grove
- Downey
- Downingtown
- Doylestown
- Draper
- Dravosburg
- Drayden
- Dresher
- Driftwood
- Drumore
- Drumright
- Drums
- Dublin
- DuBois
- Dubuque
- Dudley
- Dulles
- Duluth
- Dumfries
- Dunbar
- Duncan
- Duncannon
- Duncansville
- Duncanville
- Dundalk
- Dunedin
- Dunellen
- Dunkirk
- Dunmore
- Dunn
- Dunn Loring
- Dunnellon
- Dunnsville
- Dunwoody
- DuPont
- Durango
- Durant
- Durgapur
- Durham
- Duxbury
- Dyer
- Dyersburg
- Dyke