All counties in the State of Delaware.
| Name | Status | Population census 2000-04-01 | Population estimate 2005-07-01 | Population estimate 2009-07-01 | |
|---|---|---|---|---|---|
| Kent | County | 126,704 | 143,294 | 157,741 | o |
| New Castle | County | 500,272 | 520,918 | 534,634 | o |
| Sussex | County | 156,581 | 175,694 | 192,747 | o |
| Delaware | Federal State | 783,557 | 839,906 | 885,122 |
Contents: All incorporated places in the State of Delaware.
| Name | Status | County | Population census 2000-04-01 | Population estimate 2005-07-01 | Population estimate 2009-07-01 | |
|---|---|---|---|---|---|---|
| Arden | Village | New Castle | 475 | 484 | 489 | o |
| Ardencroft | Village | New Castle | 267 | 273 | 277 | o |
| Ardentown | Village | New Castle | 300 | 307 | 310 | o |
| Bellefonte | Town | New Castle | 1,249 | 1,284 | 1,302 | o |
| Bethany Beach | Town | Sussex | 903 | 933 | 978 | o |
| Bethel | Town | Sussex | 184 | 193 | 205 | o |
| Blades | Town | Sussex | 1,097 | 1,140 | 1,193 | o |
| Bowers | Town | Kent | 305 | 330 | 350 | o |
| Bridgeville | Town | Sussex | 1,543 | 1,607 | 1,703 | o |
| Camden | Town | Kent | 2,091 | 2,379 | 2,582 | o |
| Cheswold | Town | Kent | 453 | 484 | 518 | o |
| Clayton | Town | 1,307 | 1,407 | 1,497 | o | |
| Dagsboro | Town | Sussex | 519 | 550 | 588 | o |
| Delaware City | City | New Castle | 1,456 | 1,506 | 1,532 | o |
| Delmar | Town | Sussex | 1,439 | 1,507 | 1,579 | o |
| Dewey Beach | Town | Sussex | 299 | 308 | 322 | o |
| Dover | City | Kent | 32,201 | 33,965 | 36,560 | o |
| Ellendale | Town | Sussex | 335 | 350 | 367 | o |
| Elsmere | Town | New Castle | 5,800 | 5,700 | 5,721 | o |
| Farmington | Town | Kent | 75 | 81 | 86 | o |
| Felton | Town | Kent | 807 | 858 | 909 | o |
| Fenwick Island | Town | Sussex | 342 | 354 | 371 | o |
| Frankford | Town | Sussex | 714 | 748 | 790 | o |
| Frederica | Town | Kent | 667 | 716 | 761 | o |
| Georgetown | Town | Sussex | 4,779 | 4,984 | 5,252 | o |
| Greenwood | Town | Sussex | 842 | 876 | 921 | o |
| Harrington | City | Kent | 3,191 | 3,242 | 3,535 | o |
| Hartly | Town | Kent | 78 | 84 | 89 | o |
| Henlopen Acres | Town | Sussex | 133 | 138 | 144 | o |
| Houston | Town | Kent | 430 | 459 | 486 | o |
| Kenton | Town | Kent | 237 | 256 | 271 | o |
| Laurel | Town | Sussex | 3,739 | 3,861 | 4,047 | o |
| Leipsic | Town | Kent | 203 | 218 | 231 | o |
| Lewes | City | Sussex | 2,918 | 3,028 | 3,187 | o |
| Little Creek | Town | Kent | 195 | 207 | 218 | o |
| Magnolia | Town | Kent | 226 | 238 | 251 | o |
| Middletown | Town | New Castle | 6,262 | 9,121 | 12,726 | o |
| Milford | City | 7,001 | 7,228 | 8,592 | o | |
| Millsboro | Town | Sussex | 2,491 | 2,619 | 2,793 | o |
| Millville | Town | Sussex | 254 | 270 | 287 | o |
| Milton | Town | Sussex | 1,716 | 1,775 | 1,863 | o |
| New Castle | City | New Castle | 4,978 | 4,937 | 5,033 | o |
| Newark | City | New Castle | 29,174 | 30,331 | 30,371 | o |
| Newport | Town | New Castle | 1,143 | 1,122 | 1,136 | o |
| Ocean View | Town | Sussex | 1,041 | 1,095 | 1,162 | o |
| Odessa | Town | New Castle | 286 | 321 | 339 | o |
| Rehoboth Beach | City | Sussex | 1,497 | 1,542 | 1,609 | o |
| Seaford | City | Sussex | 6,774 | 6,980 | 7,329 | o |
| Selbyville | Town | Sussex | 1,718 | 1,804 | 1,911 | o |
| Slaughter Beach | Town | Sussex | 197 | 209 | 224 | o |
| Smyrna | Town | 5,843 | 7,414 | 8,917 | o | |
| South Bethany | Town | Sussex | 492 | 508 | 533 | o |
| Townsend | Town | New Castle | 340 | 369 | 382 | o |
| Viola | Town | Kent | 156 | 165 | 175 | o |
| Wilmington | City | New Castle | 72,644 | 72,258 | 73,069 | o |
| Woodside | Town | Kent | 184 | 194 | 205 | o |
| Wyoming | Town | Kent | 1,174 | 1,249 | 1,435 | o |
Source: US Census Bureau (web).
2010-11-23WWW.CITYPOPULATION.DE© TH. BRINKHOFF