50 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 07960 | Morristown | 46,702 |
| 07054 | Parsippany | 29,480 |
| 07801 | Dover | 27,128 |
| 07869 | Randolph | 26,022 |
| 07866 | Rockaway | 22,663 |
| 07950 | Morris Plains | 21,651 |
| 07928 | Chatham | 19,974 |
| 07834 | Denville | 18,385 |
| 07405 | Butler | 17,983 |
| 07940 | Madison | 17,610 |
| 07828 | Budd Lake | 15,461 |
| 07005 | Boonton | 15,307 |
| 07853 | Long Valley | 12,339 |
| 07932 | Florham Park | 11,977 |
| 07885 | Wharton | 11,806 |
| 07836 | Flanders | 11,694 |
| 07438 | Oak Ridge | 11,160 |
| 07936 | East Hanover | 11,152 |
| 07035 | Lincoln Park | 11,120 |
| 07034 | Lake Hiawatha | 11,018 |
| 07444 | Pompton Plains | 10,971 |
| 07045 | Montville | 10,561 |
| 07945 | Mendham | 9,690 |
| 07876 | Succasunna | 9,641 |
| 07981 | Whippany | 9,030 |
| 07930 | Chester | 8,648 |
| 07849 | Lake Hopatcong | 8,380 |
| 07850 | Landing | 6,828 |
| 07058 | Pine Brook | 5,946 |
| 07082 | Towaco | 5,723 |
| 07927 | Cedar Knolls | 4,882 |
| 07856 | Mount Arlington | 4,774 |
| 07440 | Pequannock | 4,670 |
| 07046 | Mountain Lakes | 4,585 |
| 07852 | Ledgewood | 4,233 |
| 07457 | Riverdale | 4,112 |
| 07803 | Mine Hill | 4,048 |
| 07857 | Netcong | 3,728 |
| 07933 | Gillette | 2,995 |
| 07946 | Millington | 2,982 |
| 07980 | Stirling | 2,675 |
| 07847 | Kenvil | 1,776 |
| 07878 | Mount Tabor | 766 |
| 07935 | Green Village | 584 |
| 07976 | New Vernon | 389 |
| 07961 | Convent Station | 333 |
| 07970 | Mount Freedom | 215 |
| 07926 | Brookside | 161 |
| 07842 | Hibernia | 56 |
| 07870 | Schooleys Mountain | 34 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 50 ZCTAs in Morris County, New Jersey (US Census).