Morris County, New Jersey Zip Codes
| Morristown | 46,560 |
| Parsippany | 30,392 |
| Dover | 26,548 |
| Randolph | 26,058 |
| Rockaway | 22,383 |
| Morris Plains | 21,738 |
| Chatham | 19,559 |
| Denville | 18,048 |
| Butler | 17,993 |
| Madison | 17,798 |
| Boonton | 15,106 |
| Budd Lake | 14,083 |
| Long Valley | 12,548 |
| Flanders | 12,034 |
| Wharton | 11,673 |
| Oak Ridge | 11,209 |
| East Hanover | 11,102 |
| Pompton Plains | 10,941 |
| Florham Park | 10,941 |
| Lincoln Park | 10,922 |
| Montville | 10,240 |
| Lake Hiawatha | 10,064 |
| Mendham | 9,698 |
| Succasunna | 9,527 |
| Whippany | 8,938 |
| Lake Hopatcong | 8,573 |
| Chester | 8,138 |
| Landing | 7,266 |
| Pine Brook | 6,052 |
| Towaco | 5,612 |
| Pequannock | 4,620 |
| Mountain Lakes | 4,499 |
| Mount Arlington | 4,429 |
| Cedar Knolls | 4,181 |
| Ledgewood | 4,095 |
| Riverdale | 4,081 |
| Mine Hill | 3,990 |
| Netcong | 3,564 |
| Millington | 2,991 |
| Stirling | 2,978 |
| Gillette | 2,661 |
| Kenvil | 1,685 |
| Mount Tabor | 740 |
| Green Village | 472 |
| New Vernon | 355 |
| Convent Station | 343 |
| Mount Freedom | 257 |
| Brookside | 69 |
| Schooleys Mountain | 29 |
| Hibernia | 0 |
- Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.