| Site | State | Type | Population |
|---|---|---|---|
| Denton County, TX | Texas | County | 941647 |
| Denton, TX | Texas | City | 148146 |
| Denver, CO | Colorado | City | 711463 |
| Derry, NH | New Hampshire | City | 34317 |
| Des Moines, IA | Iowa | City | 215408 |
| Des Moines, WA | Washington | City | 32689 |
| Des Plaines, IL | Illinois | City | 58316 |
| Deschutes County, OR | Oregon | County | 204801 |
| Desert Hot Springs, CA | California | City | 32716 |
| DeSoto County, MS | Mississippi | County | 182256 |
| Detroit Lakes, MN | Minnesota | City | 9795 |
| Detroit, MI | Michigan | City | 639111 |
| Deuel County, NE | Nebraska | County | 1770 |
| Dickinson, ND | North Dakota | City | 22880 |
| Dickinson, TX | Texas | City | 21697 |
| Dillon, CO | Colorado | City | 1064 |
| Dodge County, MN | Minnesota | County | 20807 |
| Dodge County, WI | Wisconsin | County | 43497 |
| Door County, WI | Wisconsin | County | 27621 |
| Doral, FL | Florida | City | 75874 |
| Dorchester County, MD | Maryland | County | 32489 |
| Dorchester County, SC | South Carolina | County | 163327 |
| Dothan, AL | Alabama | City | 71175 |
| Dougherty County, GA | Georgia | County | 85790 |
| Douglas County, CO | Colorado | County | 368990 |
| Douglas County, GA | Georgia | County | 144237 |
| Douglas County, NE | Nebraska | County | 565739 |
| Douglas County, NV | Nevada | County | 48486 |
| Douglas County, WI | Wisconsin | County | 43497 |
| Douglasville, GA | Georgia | City | 34650 |
| Dover, DE | Delaware | City | 38992 |
| Downers Grove, IL | Illinois | City | 49263 |
| Downey, CA | California | City | 111645 |
| Dublin, OH | Ohio | City | 49085 |
| DuBois City, PA | Pennsylvania | City | 7460 |
| Dubuque County, IA | Iowa | County | 98718 |
| Dubuque, IA | Iowa | City | 59119 |
| Duluth, GA | Georgia | City | 31873 |
| Duluth, MN | Minnesota | City | 86372 |
| Dunbar, WV | West Virginia | City | 7479 |
| Dunwoody, GA | Georgia | City | 53309 |
| DuPage County, IL | Illinois | County | 926005 |
| Durango, CO | Colorado | County | 19413 |
| Durant, OK | Oklahoma | City | 19088 |
| Durham County, NC | North Carolina | County | 326126 |
| Durham, NC | North Carolina | City | 276341 |
| Dutchess County, NY | New York | County | 297112 |
| Dyersburg, TN | Tennessee | City | 16024 |
| Eagan, MN | Minnesota | City | 66428 |
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