| Statistic | Reportedincidents | /100k people | Adelphi/100k people | Maryland/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 2,799 (estimate) | 2,497 | 2,281 |
| Murder | n/a | n/a | n/a | 8.3 | 5.7 |
| Rape | n/a | n/a | n/a | 31.9 | 38.0 |
| Robbery | n/a | n/a | n/a | 130.7 | 66.5 |
| Assault | n/a | n/a | n/a | 255.2 | 264.1 |
| Violent crime | n/a | n/a (estimate) | 478 (estimate) | 426 | 364 |
| Burglary | n/a | n/a | n/a | 185.9 | 250.7 |
| Theft | n/a | n/a | n/a | 1,337.8 | 1,347.2 |
| Vehicle theft | n/a | n/a | n/a | 547.4 | 318.7 |
| Property crime | n/a | n/a (estimate) | 2,322 (estimate) | 2,071 | 1,917 |


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| Item | Adelphi | Maryland | National |
| Law enforcement employees (officers & civilians) | n/a | 5,343 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 3.3 | 3.3 |
| State | Total offenders | Maryland /100K | National /100K |
| Maryland | 7,370 | 135 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Ravensworth, VA | 2,841 | 37 | 260 | 297 |
| Martin's Additions, MD | 1,089 | 60 | 291 | 350 |
| Derwood, MD | 1,644 | 60 | 291 | 350 |
| Chevy Chase View, MD | 1,151 | 60 | 291 | 350 |
| Highland, MD | 1,086 | 60 | 291 | 350 |
| Kensington, MD | 2,212 | 67 | 325 | 392 |
| Chevy Chase town, MD | 2,948 | 67 | 325 | 392 |
| Adelphi, MD | 16,364 | 478 | 2,322 | 2,799 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Heber, UT | 16,362 | 142 | 857 | 998 |
| Red Wing, MN | 16,366 | 179 | 2,111 | 2,290 |
| Cañon City, CO | 16,369 | 431 | 3,912 | 4,343 |
| Lake St. Louis, MO | 16,357 | 89 | 464 | 553 |
| Dyersburg, TN | 16,371 | 1,247 | 5,058 | 6,305 |
| Adelphi, MD | 16,364 | 478 | 2,322 | 2,799 |