Do all new jersey zip codes start with 0

No, not all New Jersey zip codes start with 0. While many New Jersey zip codes do start with 0, some do not.

New Jersey has a total of 565 zip codes, and they are distributed across the state as follows:

• 0XXX: 244 zip codes (43.4%)
• 1XXX: 134 zip codes (23.8%)
• 2XXX: 63 zip codes (11.2%)
• 3XXX: 24 zip codes (4.3%)
• 8XXX: 20 zip codes (3.6%)

So, while a significant majority of New Jersey zip codes do start with 0, about 36% of them do not.