Private Investor-Owned Utility
Middlesex Water Company
Serving Eastern Middlesex County and Middlesex Water Company service territories
Population served
233,376 people (EPA SDWIS PWS ID NJ1225001; 2026 active CWS record).
State system code
FIPS 34
Billing frequency
Monthly or by the tariff and operating company; customer bills and tariffs govern the billing period. The reviewed tariff materials state that rates and fixed customer charges are established for each regulated service territory.
Provider briefing
How this utility’s billing works
Middlesex Water Company operates as a private investor-owned utility serving Eastern Middlesex County and Middlesex Water Company service territories. Customers should use the provider’s current account-specific bill and official customer-service instructions as the final authority for deadlines, balances, and service requests.
The published water-rate framework is described as Regulated tariff pricing with customer or meter charges and volumetric consumption rates; schedules vary by Middlesex Water operating company and tariff service area. The accessible tariff material identifies a 0.75% monthly late-payment charge and separate service terms but does not expose a single universal 2026 residential rate table for all NJ systems.. Bills are generated monthly or by the tariff and operating company; customer bills and tariffs govern the billing period. the reviewed tariff materials state that rates and fixed customer charges are established for each regulated service territory., and a typical residential cost reference is A dedicated this detail was not publicly posted. For one complete 2026 household total because Middlesex Water serves multiple tariff territories with different base charges, usage rates, taxes, and wastewater arrangements. A 5,000-7,000 gallon customer should use the tariff and operating-company schedule printed on the bill rather than a systemwide estimate.. These descriptions are useful planning benchmarks; actual charges can change with meter size, usage, sewer averaging, local taxes, drought stages, or account-specific fees.
Wastewater and sewer calculation
Wastewater may be billed by the applicable Middlesex Water affiliate or local sewer authority and is governed by the customer tariff. The reviewed public materials do not establish one universal winter-average, percentage-of-water, or flat-sewer formula for all customers.
Meter and infrastructure notes
Meter-reading technology and schedule vary by operating company. The reviewed materials do not identify one universal AMI vendor, hourly transmission interval, or route calendar; customers should use the bill's read dates, account portal, and DirectAlert enrollment for service-specific information.
Emergency water support
Report a leak or water emergency
800-549-3802, published for reporting a water main break or water emergency 24 hours a day, 365 days a year. Use the same line for urgent leak and shutoff routing; routine account questions should follow the Customer Service menu.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Eastern Middlesex County and Middlesex Water Company service territories
Middlesex Water Company is listed here as a private investor-owned utility. The profile separates account actions—such as paying a bill or requesting service—from explanatory material about rates, meters, wastewater, leaks, and delinquency.
Because utility rules can vary by account class, meter size, service address, billing date, and local ordinance, treat the published bill and current provider website as the final authority. Use this profile to locate the correct channel and prepare better questions for customer service.
If your issue is urgent, start with the provider’s emergency number or official payment route rather than waiting for an email response. Keep a written record of calls, confirmation numbers, notice dates, and documents you submit.