Municipal Department
Manchester Water Works
Service area: Manchester and surrounding franchise communities
Population: 123,500
Billing fields: 4 of 7 documented
State directory · dataset 2026.08
Water utilities serving New Hampshire
Browse 9 indexed systems and see how frequently the directory identified public payment, fee, leak, assistance, and emergency information. Coverage describes the research record—not utility performance.
New Hampshire research snapshot
Public detail found in indexed records
67%
Online portal identified
6 of 9
33%
Public fee detail
3 of 9
11%
Leak policy detail
1 of 9
22%
Assistance detail
2 of 9
22%
Emergency route
2 of 9
Private Investor-Owned Utility
Aquarion Water Company of New Hampshire
Service area: Aquarion Water Company of New Hampshire service areas
Population: 34,000 people (EPA SDWA queue estimate for NH1051010)
Billing fields: 6 of 7 documented
Municipal Department
City of Portsmouth Water and Sewer Division
Service area: Portsmouth
Population: 33,000 people (EPA SDWA queue estimate for NH1951010)
Billing fields: 6 of 7 documented
Municipal Department
City of Keene Water Department
Service area: Keene
Population: 30,000 people (EPA SDWA queue estimate for NH1241010)
Billing fields: 0 of 7 documented
Public Water Authority
Merrimack Village District
Service area: Merrimack
Population: 25,500 people (EPA SDWIS 2026Q2 estimate for NH1531010)
Billing fields: 0 of 7 documented
Municipal Department
City of Rochester Water Department
Service area: Rochester
Population: 25,000 people (EPA SDWIS 2026Q2 estimate for NH2001010)
Billing fields: 0 of 7 documented
Municipal Department
Town of Salem Water Department
Service area: Salem
Population: 21,000 people (EPA SDWIS 2026Q2 estimate for NH2051010)
Billing fields: 0 of 7 documented
Private Investor-Owned Utility
PENNICHUCK WATER WORKS
Service area: NASHUA
Population: 88853 people (EPA SDWIS 2026Q2 active CWS estimate for NH1621010)
Billing fields: 0 of 7 documented
Municipal Department
CONCORD WATER DEPT
Service area: CONCORD
Population: 44215 people (EPA SDWIS 2026Q2 active CWS estimate for NH0501010)
Billing fields: 0 of 7 documented
New Hampshire directory notes
How to compare water utilities in New Hampshire
This state hub brings together 9 indexed community water systems, from city departments and public authorities to investor-owned systems and smaller regional providers. A service area may cross municipal boundaries, so use the provider name and service address on your bill when choosing a profile.
The most important distinction is between a directory listing and an official account channel. US Water Bill Pay provides a structured starting point; the utility’s own payment portal, published rate schedule, customer-service office, and mailed notice control your account. Compare the payment route, billing frequency, emergency number, and customer-protection notes before relying on a page for a time-sensitive decision.
If you are helping a household with a high bill, leak, or delinquency notice, open the utility profile and review the payment, shut-off, and leak-adjustment guides together. Keep the bill, account number, confirmation receipts, repair records, and notice dates available when speaking with the provider.