Municipal Address

Township of Monroe
125 Virginia Avenue
Williamstown, NJ 08094


General Hours
Monday through Friday
8:00 AM to 4:30 PM

Public Works Hours

Contact 856-629-4444
Monday through Friday

6:30 AM - 2:30 PM

Attention: Important Tax Information for Monroe Township

/Attention: Important Tax Information for Monroe Township

The Monroe Township Tax Collector’s Office is open Monday-Friday, 8:00AM-4:00PM.  Taxes are due February, May, August and November 1st, with a 10-day grace period.  If that falls on a holiday or weekend, it’s the next business day.  We do not accept postmarks.  Tax information can be obtained online at WWW.MONROETOWNSHIPNJ.ORG, where payments can also be made.  Other options for making payments are leaving them in our drop box by the Tax Collector’s Office, mailing your payment with a stamped envelope for a return receipt or coming into the office during business hours.  For water/sewer questions, please call 856-629-1444 and for tax assessment questions, please call 856-307-6445.