| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| DY Junction | city | Montana | United States | 47.79556 | -108.63278 | 3261 | 5 |
| Dagmar | city | Montana | United States | 48.58333 | -104.19778 | 2007 | 75 |
| Dahl Place | city | Montana | United States | 45.63583 | -110.42583 | 5643 | 103 |
| Dailey historical | city | Montana | United States | 45.29083 | -110.84083 | 4960 | 112 |
| Daleview | city | Montana | United States | 48.91333 | -104.93333 | 2191 | 117 |
| Dalys | city | Montana | United States | 45.08528 | -112.77917 | 5531 | 46 |
| Danielsville | city | Montana | United States | 46.29222 | -113.01444 | 6601 | 465 |
| Danvers | city | Montana | United States | 47.22528 | -109.71639 | 3599 | 54 |
| Darby | city | Montana | United States | 46.02278 | -114.17722 | 3999 | 374 |
| Darrel historical | city | Montana | United States | 46.75083 | -108.70917 | 3858 | 60 |
| Dayton | city | Montana | United States | 47.86583 | -114.27806 | 2890 | 290 |
| Daytown historical | city | Montana | United States | 46.66111 | -111.69639 | 3999 | 906 |
| De Borgia | city | Montana | United States | 47.37583 | -115.345 | 3198 | 98 |
| De Smet | city | Montana | United States | 46.93333 | -114.10222 | 3313 | 3425 |
| Dean | city | Montana | United States | 45.40472 | -109.68972 | 5295 | 131 |
| Dearborn historical | city | Montana | United States | 47.19861 | -112.09028 | 3799 | 55 |
| Decker | city | Montana | United States | 45.01194 | -106.86278 | 3599 | 22 |
| Deep Creek historical | city | Montana | United States | 46.32222 | -111.42222 | 4258 | 182 |
| Deer Lodge | city | Montana | United States | 46.39583 | -112.72917 | 4632 | 709 |
| Deer Park | city | Montana | United States | 46.13056 | -111.27028 | 4199 | 391 |
| Deerfield Colony | city | Montana | United States | 47.25972 | -109.67667 | 3464 | 50 |
| Deertail Indian Village historical | city | Montana | United States | 48.08639 | -105.06472 | 1938 | 116 |
| Del Bonita | city | Montana | United States | 48.99806 | -112.78722 | 4317 | 84 |
| Delano Heights historical | city | Montana | United States | 48.00417 | -106.49722 | 2312 | 19 |
| Delano Place | city | Montana | United States | 45.89889 | -112.85389 | 7483 | 53 |
| Dell | city | Montana | United States | 44.72306 | -112.69639 | 6007 | 14 |
| Delphia | city | Montana | United States | 46.50472 | -108.21861 | 3136 | 110 |
| Demers historical | city | Montana | United States | 48.885 | -112.16667 | 4097 | 352 |
| Demersville historical | city | Montana | United States | 48.16278 | -114.26806 | 2900 | 9391 |
| Dennison historical | city | Montana | United States | 46.96389 | -111.94167 | 3786 | 70 |
| Denton | city | Montana | United States | 47.31972 | -109.94667 | 3681 | 56 |
| Devon | city | Montana | United States | 48.46667 | -111.47778 | 3198 | 131 |
| Dewey | city | Montana | United States | 45.77722 | -112.85417 | 5912 | 28 |
| Diamond City | city | Montana | United States | 46.59722 | -111.42306 | 4999 | 177 |
| Diamond Valley | city | Montana | United States | 47.84333 | -111.49417 | 3700 | 117 |
| Dillon | city | Montana | United States | 45.21639 | -112.63667 | 5157 | 3853 |
| Divide | city | Montana | United States | 45.75111 | -112.74639 | 5400 | 39 |
| Dixon | city | Montana | United States | 47.31667 | -114.31306 | 2611 | 140 |
| Doak Trailer Court | city | Montana | United States | 46.54583 | -110.89444 | 5098 | 42 |
| Dodge Summit | city | Montana | United States | 48.91917 | -115.35694 | 6197 | 177 |
| Dodgetown historical | city | Montana | United States | 46.30694 | -109.36056 | 3799 | 60 |
| Dodson | city | Montana | United States | 48.39556 | -108.24361 | 2247 | 75 |
| Dogtown historical | city | Montana | United States | 45.70833 | -111.17222 | 4632 | 846 |
| Dogtown historical | city | Montana | United States | 48.46861 | -108.62083 | 2316 | 86 |
| Donald | city | Montana | United States | 45.845 | -112.42667 | 6397 | 402 |
| Donlan | city | Montana | United States | 47.33028 | -114.93444 | 2798 | 135 |
| Donovan Park historical | city | Montana | United States | 47.41667 | -111.26667 | 3599 | 15173 |
| Dooley | city | Montana | United States | 48.88111 | -104.38889 | 2539 | 112 |
| Dotsonville historical | city | Montana | United States | 46.6 | -112.09444 | 4304 | 8782 |
| Douglas historical | city | Montana | United States | 48.86111 | -113.21528 | 4835 | 61 |
| Dover | city | Montana | United States | 47.22056 | -110.2675 | 4156 | 89 |
| Dovetail historical | city | Montana | United States | 47.34389 | -108.20667 | 2798 | 14 |
| Drexel | city | Montana | United States | 47.32667 | -115.25167 | 2998 | 97 |
| Drummond | city | Montana | United States | 46.6675 | -113.14639 | 3966 | 50 |
| Dry Lake | city | Montana | United States | 48.05111 | -108.64583 | 3398 | 126 |
| Dryer Place | city | Montana | United States | 47.74306 | -107.56472 | 2762 | 5 |
| Dryhead historical | city | Montana | United States | 45.17639 | -108.27278 | 5469 | 40 |
| Dryland historical | city | Montana | United States | 47.01167 | -108.9475 | 4055 | 33 |
| Duffy Trailer Court | city | Montana | United States | 45.835 | -109.95472 | 4199 | 74 |
| Duncan Ranch Colony | city | Montana | United States | 46.44444 | -110.02306 | 4399 | 89 |
| Duncan historical | city | Montana | United States | 48.20472 | -114.3 | 2998 | 20905 |
| Dunham | city | Montana | United States | 47.61194 | -114.12 | 3126 | 1730 |
| Dunkirk | city | Montana | United States | 48.47806 | -111.66333 | 3333 | 131 |
| Dunmore | city | Montana | United States | 45.67861 | -107.50389 | 2978 | 84 |
| Dupuyer | city | Montana | United States | 48.1925 | -112.49861 | 4169 | 98 |
| Durant | city | Montana | United States | 46.02139 | -112.79 | 5186 | 230 |
| Durham | city | Montana | United States | 48.51889 | -113.11611 | 4796 | 1435 |
| Dutch Hill historical | city | Montana | United States | 46.31667 | -114.19167 | 3799 | 1013 |
| Dutton | city | Montana | United States | 46.60306 | -112.94639 | 4137 | 47 |
| Dutton | city | Montana | United States | 47.84278 | -111.71083 | 3730 | 117 |
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