Founded in 1739, Morris County is one of 21 counties in the state of New Jersey. Historically, Morris County was formed from Hunterdon County. The city of Morristown is the county seat. With FIPS code of 27, Morris County has a population of 510,981 and area of 469 square miles (1,215 km2).
List of all cities in Morris County, NJ alphabetically
| City/Town | Postal Code | Area Code |
| Boonton, NJ | 07005 | 973/862 |
| Brookside, NJ | 07926 | 973/862 |
| Budd Lake, NJ | 07828 | 973/862 |
| Butler, NJ | 07405 | 973/862 |
| Cedar Knolls, NJ | 07927 | 973/862 |
| Chatham, NJ | 07928 | 973/862 |
| Chester, NJ | 07930 | 908 |
| Convent Station, NJ | 07961 | 973/862 |
| Denville, NJ | 07834 | 973/862 |
| Dover, NJ | 07801 | 973/862 |
| 07802 | 973/862 | |
| 07803 | 973/862 | |
| 07806 | 973/862 | |
| 07869 | 973/862 | |
| Dover Annex, NJ | 07801 | 973/862 |
| East Hanover, NJ | 07936 | 973/862 |
| Fayson Lakes, NJ | 07405 | 973/862 |
| Flanders, NJ | 07836 | 973/862 |
| Florham Park, NJ | 07932 | 973/862 |
| Gillette, NJ | 07933 | 908 |
| Green Village, NJ | 07935 | 973/862 |
| Greystone Park, NJ | 07950 | 973/862 |
| Hibernia, NJ | 07842 | 973/862 |
| High Crest, NJ | 07405 | 973/862 |
| Ironia, NJ | 07845 | 973/862 |
| Kenvil, NJ | 07847 | 973/862 |
| Kinnelon, NJ | 07405 | 973/862 |
| Lake Hiawatha, NJ | 07034 | 973/862 |
| Lake Hopatcong, NJ | 07849 | 973/862 |
| Lake Intervale, NJ | 07005 | 973/862 |
| Landing, NJ | 07850 | 973/862 |
| Ledgewood, NJ | 07852 | 973/862 |
| Lincoln Park, NJ | 07035 | 973/862 |
| Lindy Lake, NJ | 07405 | 973/862 |
| Long Valley, NJ | 07853 | 908 |
| Lower Montville, NJ | 07045 | 973/862 |
| Lyonsville, NJ | 07005 | 973/862 |
| Madison, NJ | 07940 | 973/862 |
| Mendham, NJ | 07945 | 973/862 |
| Meriden, NJ | 07005 | 973/862 |
| Millington, NJ | 07946 | 908 |
| Mine Hill, NJ | 07803 | 973/862 |
| Montville, NJ | 07045 | 973/862 |
| Morris Plns, NJ | 07950 | 973/862 |
| Morristown, NJ | 07960 | 973/862 |
| 07961 | 973/862 | |
| 07962 | 973/862 | |
| 07963 | 973/862 | |
| Mount Arlington, NJ | 07856 | 973/862 |
| Mount Freedom, NJ | 07970 | 973/862 |
| Mount Olive, NJ | 07828 | 973/862 |
| Mount Tabor, NJ | 07878 | 973/862 |
| Mountain Lakes, NJ | 07046 | 973/862 |
| Netcong, NJ | 07857 | 973/862 |
| New Vernon, NJ | 07976 | 973/862 |
| Parsippany, NJ | 07054 | 973/862 |
| Parsippany Troy Hills, NJ | 07054 | 973/862 |
| Pequannock, NJ | 07440 | 973/862 |
| Picatinny Arsenal, NJ | 07806 | 973/862 |
| Pine Brook, NJ | 07058 | 973/862 |
| Pompton Junction, NJ | 07457 | 973/862 |
| Pompton Plns, NJ | 07444 | 973/862 |
| Powerville, NJ | 07005 | 973/862 |
| Randolph, NJ | 07869 | 973/862 |
| Riverdale, NJ | 07457 | 973/862 |
| Rockaway, NJ | 07866 | 973/862 |
| Rockaway Valley, NJ | 07005 | 973/862 |
| Roxbury Township, NJ | 07836 | 973/862 |
| Schooleys Mountain, NJ | 07870 | 908 |
| Stirling, NJ | 07980 | 908 |
| Succasunna, NJ | 07876 | 973/862 |
| Tabor, NJ | 07878 | 973/862 |
| Taylortown, NJ | 07005 | 973/862 |
| Towaco, NJ | 07082 | 973/862 |
| Troy Hills, NJ | 07054 | 973/862 |
| Victory Gardens, NJ | 07801 | 973/862 |
| Wharton, NJ | 07885 | 973/862 |
| Whippany, NJ | 07981 | 973/862 |
| 07999 | 973/862 |