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State directory · dataset 2026.08

Water utilities serving Michigan

Browse 100 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.

Michigan research snapshot

Public detail found in indexed records

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67%

Online portal identified

67 of 100

11%

Public fee detail

11 of 100

21%

Leak policy detail

21 of 100

16%

Assistance detail

16 of 100

19%

Emergency route

19 of 100

Service area: City of Detroit

Population: DWSD's 2025 official Water Quality Report says the system provides clean water to more than 645,000 residents and reports 213,737 active accounts; older City material describes more than 230,000 accounts and nearly 700,000 residents. The current report figure is used here because service population and account counts vary by reporting year and retail-service definition.

Billing fields: 7 of 7 documented
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Service area: Rochester

Population: Approximately 74,000 people in the EPA-listed Rochester Hills/Rochester-area CWS record; the official City of Rochester water page describes the municipal service area and two water systems.

Billing fields: 4 of 7 documented
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Service area: Wyoming, Kent County

Population: Approximately 72,000 residents in the queue estimate; Wyoming's Utilities department includes the drinking-water plant, wastewater treatment plant and Utility Business Office.

Billing fields: 7 of 7 documented
Open research profile

Municipal Department

WARREN, CITY OF

MI0006900

Service area: WARREN

Population: 134056 people (EPA SDWIS 2026Q2 active CWS estimate for MI0006900)

Billing fields: 7 of 7 documented
Open research profile

Municipal Department

ANN ARBOR

MI0000220

Service area: ANN ARBOR

Population: 123851 people (EPA SDWIS 2026Q2 active CWS estimate for MI0000220)

Billing fields: 6 of 7 documented
Open research profile

Municipal Department

DEARBORN

MI0001730

Service area: Dearborn

Population: 109,976 people; EPA SDWIS 2026Q2 active CWS estimate for MI0001730.

Billing fields: 5 of 7 documented
Open research profile

Municipal Department

LIVONIA

MI0003930

Service area: LIVONIA

Population: 96942 people (EPA SDWIS 2026Q2 active CWS estimate for MI0003930)

Billing fields: 0 of 7 documented
Open research profile

Municipal Department

TROY

MI0006690

Service area: TROY

Population: 85854 people (EPA SDWIS 2026Q2 active CWS estimate for MI0006690)

Billing fields: 0 of 7 documented
Open research profile

Municipal Department

WESTLAND

MI0007040

Service area: WESTLAND

Population: 85420 people (EPA SDWIS 2026Q2 active CWS estimate for MI0007040)

Billing fields: 0 of 7 documented
Open research profile

Municipal Department

FLINT, CITY OF

MI0002310

Service area: FLINT

Population: 81252 people (EPA SDWIS 2026Q2 active CWS estimate for MI0002310)

Billing fields: 0 of 7 documented
Open research profile

Municipal Department

ROCHESTER HILLS

MI0000325

Service area: ROCHESTER HILLS

Population: 74000 people (EPA SDWIS 2026Q2 active CWS estimate for MI0000325)

Billing fields: 0 of 7 documented
Open research profile

Municipal Department

WYOMING

MI0007220

Service area: HOLLAND

Population: 72125 people (EPA SDWIS 2026Q2 active CWS estimate for MI0007220)

Billing fields: 0 of 7 documented
Open research profile

Municipal Department

SOUTHFIELD

MI0006160

Service area: SOUTHFIELD

Population: 71739 people (EPA SDWIS 2026Q2 active CWS estimate for MI0006160)

Billing fields: 0 of 7 documented
Open research profile

Municipal Department

MONROE

MI0004450

Service area: MONROE

Population: 49467 people (EPA SDWIS 2026Q2 active CWS estimate for MI0004450)

Billing fields: 0 of 7 documented
Open research profile

Municipal Department

PORTAGE

MI0005520

Service area: PORTAGE

Population: 46292 people (EPA SDWIS 2026Q2 active CWS estimate for MI0005520)

Billing fields: 0 of 7 documented
Open research profile

Municipal Department

LINCOLN PARK

MI0003870

Service area: LINCOLN PARK

Population: 38144 people (EPA SDWIS 2026Q2 active CWS estimate for MI0003870)

Billing fields: 0 of 7 documented
Open research profile

Municipal Department

MUSKEGON

MI0004570

Service area: MUSKEGON

Population: 37213 people (EPA SDWIS 2026Q2 active CWS estimate for MI0004570)

Billing fields: 0 of 7 documented
Open research profile

Michigan directory notes

How to compare water utilities in Michigan

This state hub brings together 100 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.