| Delaware ZIP codes | City | Number of people in state prison from each ZIP code, 2020 | Census population, 2020 | Total population, 2020 | Imprisonment rate per 100,000 |
|---|---|---|---|---|---|
| 19701 | Bear | 79 | 42,717 | 42,796 | 185 |
| 19702 | Newark | 152 | 55,653 | 55,805 | 272 |
| 19703 | Claymont | 44 | 16,175 | 16,219 | 271 |
| 19706 | Delaware City | 7 | 1,938 | 1,945 | 360 |
| 19707 | Hockessin | 7 | 17,274 | 17,281 | 41 |
| 19709 | Middletown | 51 | 49,599 | 49,650 | 103 |
| 19710 | Montchanin | 0 | 108 | 108 | 0 |
| 19711 | Newark | 76 | 48,477 | 48,553 | 157 |
| 19713 | Newark | 106 | 31,867 | 31,973 | 332 |
| 19716 | Newark | 0 | 42 | 42 | 0 |
| 19717 | Newark | 0 | 6,201 | 6,201 | 0 |
| 19720 | New Castle | 316 | 61,043 | 61,129 | 517 |
| 19730 | Odessa | 1 | 472 | 473 | 211 |
| 19731 | Port Penn | 1 | 329 | 330 | 303 |
| 19732 | Rockland | 0 | 223 | 223 | 0 |
| 19733 | Saint Georges | 1 | 320 | 321 | 312 |
| 19734 | Townsend | 37 | 14,116 | 14,153 | 261 |
| 19735 | Winterthur | 0 | 16 | 16 | 0 |
| 19736 | Yorklyn | 0 | 34 | 34 | 0 |
| 19801 | Wilmington | 262 | 16,219 | 16,481 | 1,590 |
| 19802 | Wilmington | 376 | 26,189 | 25,321 | 1,485 |
| 19803 | Wilmington | 7 | 21,886 | 21,893 | 32 |
| 19804 | Wilmington | 73 | 18,292 | 18,365 | 398 |
| 19805 | Wilmington | 365 | 39,985 | 40,350 | 905 |
| 19806 | Wilmington | 15 | 10,083 | 10,098 | 149 |
| 19807 | Wilmington | 1 | 8,089 | 8,090 | 12 |
| 19808 | Wilmington | 54 | 39,285 | 39,339 | 137 |
| 19809 | Wilmington | 38 | 14,658 | 14,696 | 259 |
| 19810 | Wilmington | 20 | 25,270 | 25,290 | 79 |
| 19901 | Dover | 249 | 36,839 | 37,088 | 671 |
| 19902 | Dover Air Force Base | 1 | 108 | 109 | 917 |
| 19904 | Dover | 188 | 36,880 | 36,983 | 508 |
| 19930 | Bethany Beach | 3 | 2,657 | 2,660 | 113 |
| 19931 | Bethel | 1 | 258 | 259 | 386 |
| 19933 | Bridgeville | 55 | 9,784 | 9,839 | 559 |
| 19934 | Camden Wyoming | 45 | 14,243 | 14,288 | 315 |
| 19936 | Cheswold | 1 | 329 | 330 | 303 |
| 19938 | Clayton | 22 | 10,131 | 10,153 | 217 |
| 19939 | Dagsboro | 30 | 7,357 | 7,387 | 406 |
| 19940 | Delmar | 18 | 6,541 | 6,559 | 274 |
| 19941 | Ellendale | 18 | 2,857 | 2,875 | 626 |
| 19943 | Felton | 69 | 12,523 | 12,592 | 548 |
| 19944 | Fenwick Island | 0 | 519 | 519 | 0 |
| 19945 | Frankford | 17 | 8,041 | 8,058 | 211 |
| 19946 | Frederica | 18 | 4,932 | 4,950 | 364 |
| 19947 | Georgetown | 93 | 20,964 | 19,925 | 467 |
| 19950 | Greenwood | 25 | 7,095 | 7,120 | 351 |
| 19951 | Harbeson | 8 | 1,986 | 1,994 | 401 |
| 19952 | Harrington | 32 | 10,621 | 10,653 | 300 |
| 19953 | Hartly | 13 | 4,500 | 4,513 | 288 |
| 19954 | Houston | 9 | 1,629 | 1,638 | 549 |
| 19955 | Kenton | 2 | 191 | 193 | 1,036 |
| 19956 | Laurel | 94 | 16,327 | 16,421 | 572 |
| 19958 | Lewes | 46 | 27,911 | 27,957 | 165 |
| 19960 | Lincoln | 30 | 7,121 | 7,151 | 420 |
| 19962 | Magnolia | 63 | 13,692 | 13,755 | 458 |
| 19963 | Milford | 73 | 20,827 | 20,900 | 349 |
| 19964 | Marydel | 5 | 1,298 | 1,303 | 384 |
| 19966 | Millsboro | 105 | 32,520 | 32,625 | 322 |
| 19967 | Millville | 1 | 1,802 | 1,803 | 55 |
| 19968 | Milton | 42 | 13,800 | 13,842 | 303 |
| 19970 | Ocean View | 9 | 8,591 | 8,600 | 105 |
| 19971 | Rehoboth Beach | 25 | 14,348 | 14,373 | 174 |
| 19973 | Seaford | 165 | 25,193 | 25,358 | 651 |
| 19975 | Selbyville | 13 | 10,476 | 10,489 | 124 |
| 19977 | Smyrna | 82 | 27,505 | 26,167 | 313 |
| 19979 | Viola | 1 | 722 | 723 | 138 |
| 19980 | Woodside | 1 | 235 | 236 | 424 |
| 21874 | Gumboro | 0 | 16 | 16 | 0 |
| 21912 | Middletown | 0 | 19 | 19 | 0 |