Martin County Water Utilities 2026: Bill Pay, Login & Phone

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Martin County Utilities • Online BillPay • QuickPay • phone • emergency • Stuart FL

Martin County Water Utilities Help Desk: Pay, Log In, Call or Start Service

Use this guide like a Martin County Utilities counter: pay your water and sewer bill, log in to Online BillPay, use QuickPay, call customer service, start or transfer service, handle a past-due bill, check rates, ask for a meter test, and find the Stuart office without sorting through multiple pages.

Pay / Login Call 772-221-1434 Start / Stop Service Office Map

Quick Answer: Martin County Utilities Phone, Login and Address

Customer Service772-221-1434
After-Hours EmergencyCall 772-221-1434
Office3473 SE Willoughby Blvd.
HoursMon-Fri 8 AM-5 PM
Need
Official route
Prepare first
Important detail
Pay or log in online
Martin County Utility Online BillPay
Username/password for enrolled login, or account details for QuickPay.
Enrolled users can view full bill detail, print bills, get email bill notices, and manage multiple accounts.
Pay without enrollment
Online BillPay → QuickPay
Account number, balance check, payment method.
QuickPay says no enrollment is required and supports one-time card/bank payments.
Pay by phone
772-221-1434
Account number and/or service address.
Credit-card phone payment is available during regular business hours.
Customer service / new service / transfer / close
772-221-1434
Address, phone, driver’s license/tax ID or existing account number if requested.
Beginning May 11, 2026, same-day service for new accounts is no longer available after 2:30 p.m.
After-hours or weekend emergency
772-221-1434
Exact address, cross street, water/sewer issue, time started, safety risk.
The answering service routes emergency calls after hours and weekends.
Visit office
3473 SE Willoughby Boulevard, Suite 102, Stuart, FL 34994
Bill, account number, ID, service address, payment method, notice or documents.
Office hours are Monday-Friday, 8 a.m.-5 p.m., except major holidays.
Mail payment
Martin County Utilities, PO Box 9000, Stuart, FL 34995-9000
Payment stub and account number.
Do not send cash in the mail.

Past-due warning: the Online BillPay page tells past-due customers to contact the Customer Service Center at 772-221-1434 to avoid interruption of service. Do not rely only on a late online payment if you already have a shutoff or interruption risk.

First Check: Is Martin County Utilities Your Provider?

Martin County Utilities provides water and sewer service in unincorporated areas of Martin County. A Stuart, Jensen Beach, Hobe Sound, Palm City or Port Salerno mailing address does not automatically prove your bill is with the county.

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County service areas

Use Martin County Utilities for county water/sewer accounts in unincorporated service areas.

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City or town service

Some addresses may be served by a municipality, private utility, HOA, condo association, septic system or well.

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Best proof

Match the provider name on your bill, the service address, the account number, the payment portal and the official phone number.

Address clue
What it may mean
What to do before paying
Your bill says Martin County Utilities
You are likely on the county route.
Use Online BillPay, QuickPay, 772-221-1434 and the Willoughby Boulevard office.
You live in unincorporated Martin County
County utility service is possible, but still verify by address.
Call customer service and ask whether the county serves the exact address.
Your address is inside a municipality
Another city/town or private provider may bill water/sewer.
Do not open a county account until provider is confirmed.
Apartment, condo or HOA
Water may be master-metered, included, submetered or HOA-billed.
Check lease/HOA packet before starting a county utility account.

Pay or Log In to Martin County Utility Online BillPay

Use the official Online BillPay page for enrolled login or QuickPay. Save confirmation details, especially if the account is near due date or past due.

Open the official bill-pay page

Go to Martin County Utility Online BillPay. Choose Existing Customer Login if enrolled, or QuickPay for a no-enrollment payment.

Choose login or QuickPay

Online BillPay lets enrolled users view entire bill detail online, print bills 24/7, receive email notices, make one-time payments, sign up for automatic payments, and view multiple utility accounts with one username/password.

Call if past due

If payment is past due, call 772-221-1434 to avoid interruption of service. Ask whether online payment is enough or whether another action is needed.

Save proof

Keep confirmation number, amount, payment date/time, payment method, account number, service address and a screenshot or email receipt.

Payment route
Use when
Need ready
Do not miss
Online BillPay login
You want bill detail, email notifications, recurring options or multiple accounts.
Username and password.
Security notice says representatives will not email asking you to validate sensitive personal information.
QuickPay
You want a one-time payment without enrollment.
Account details and payment method.
QuickPay can show current account balance and make a one-time card/bank payment.
Pay by phone
You prefer phone payment or need help confirming the account.
Account number and/or service address.
Call 772-221-1434 during Monday-Friday business hours.
Mail
Normal bills with enough mailing time.
Check/money order, stub and account number.
Mail to PO Box 9000, Stuart, FL 34995-9000. Do not send cash.
In person
You need receipt, account discussion or same-day service support.
Bill, ID, payment method, account/service address.
3473 SE Willoughby Boulevard, Stuart, FL 34994.
Automatic bank payment
You want monthly bank draft with no check writing.
Completed authorization form and bank information.
Setup takes about 4-6 weeks; keep paying normally until bill says “Do Not Pay.”
Payment posting script: “I paid Martin County Utilities account [account number] for [service address] on [date/time] by [method]. Confirmation number is [number]. Can you confirm it posted and tell me whether any balance, late amount, interruption risk, fee or service order remains?”

Start, Transfer or Close Martin County Water/Sewer Service

New service

Call 772-221-1434 or visit 3473 SE Willoughby Boulevard, Suite 102, Monday-Friday 8 a.m.-5 p.m.

Never had service

If the location has never had service, an application must be completed and required fees paid.

2:30 p.m. cutoff

Beginning May 11, 2026, same-day service for new accounts is no longer available after 2:30 p.m.

Task
How to do it
Prepare
Timing note
Open new account
Call customer service or visit the Stuart office.
Service address, phone, driver’s license number or tax ID, existing account number if you have one, deposit if required.
Same-day new-account service is not available after 2:30 p.m. beginning May 11, 2026.
Transfer service
Contact customer service at 772-221-1434.
Old address, new address, identification, desired date, forwarding address.
Ask whether both accounts need meter reads and whether any deposit transfers.
Close account
Call or submit request for help/information.
Account number, final date, forwarding address, contact phone/email.
Ask when the final bill will be issued and how deposit credit is handled.
Seasonal turn-off
Ask Customer Service before leaving seasonally.
Account number, turn-off/turn-on dates, property access details.
Base charges can still apply while away; verify current fees before scheduling.
Deposit refund
Submit request for deposit return after two years of excellent credit.
Account number, contact info, mailing address and account status.
Use the county request route and keep confirmation.
Request New Service Submit Request for Help Deposit Refund

Past-Due Bill, Interruption Risk or Payment Arrangement

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Call before shutoff risk

If your payment is past due, call 772-221-1434 to avoid interruption of service.

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Ask about arrangement

Ask whether a payment arrangement can keep service uninterrupted.

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Check assistance

The Lend a Hand Program may help qualifying Martin County Utilities customers during temporary hardship.

Situation
Best action
Ask this
Bill is due soon
Pay through Online BillPay, phone, mail or in person.
“Will this payment post before the due date?”
Bill is already past due
Call 772-221-1434 before relying only on online payment.
“What amount and payment method prevents interruption today?”
You need extra time
Ask about payment arrangement options.
“Can an installment plan be set up on this current bill?”
Financial hardship
Contact Lend a Hand / Human Services.
“Do I qualify for water bill assistance, and what documents do you need?”
Service already interrupted
Call customer service with payment proof and account number.
“What fees, payment method and timing are required to restore service?”
Past-due script: “My Martin County Utilities account is [account number] at [service address]. I have a past-due balance. What exact amount is required today, what payment method should I use, and do I qualify for a payment arrangement or Lend a Hand assistance?”

Current Rates and Common Fees

Martin County Utilities’ rate sheet is effective June 1, 2025 and says rates increased 2.5% and were rounded to the nearest cent. Use the current official PDF before publishing precise bill estimates.

Residential minimum

5/8-inch meter: water $19.99 and sewer $20.73 monthly minimum.

First usage tier

0-10,000 gallons: water $2.56 and sewer $5.06 per 1,000 gallons.

Same-day fee

Same Day Service Fee is listed at $45.00.

Cut-off fee

Cut-Off for Non-Payment is listed at $50.00.

Rate / fee
Official amount shown
What it means for customers
Residential minimum monthly bill, 5/8-inch meter
Water $19.99; Sewer $20.73.
Base monthly charge before usage tiers and other line items.
Residential consumption, 0-10,000 gallons
Water $2.56; Sewer $5.06 per 1,000 gallons.
First common usage tier for many homes.
Residential consumption, 10,001-15,000 gallons
Water $3.64 per 1,000 gallons; sewer listed N/A for that tier.
Higher water use moves into a higher water tier.
Residential consumption, 15,001-25,000 gallons
Water $4.65 per 1,000 gallons.
Large irrigation/pool/leak usage can move into this tier.
Residential consumption, 25,000 and above
Water $5.66 per 1,000 gallons.
High usage can become expensive quickly.
Reclaimed irrigation consumption
$0.56 per 1,000 gallons.
Applies where reclaimed irrigation service is available.
Service call per customer request
$20.00.
Ask before requesting a non-emergency service call.
Meter test
$20.00 if meter is correct; no charge if incorrect.
Useful for high-bill disputes after checking leaks and usage.
Returned item
$25 up to $50; $30 for $50.01-$300; $40 over $300.01.
Returned payments can add fees and affect account standing.
Current Utilities Rates PDF Bill Information

High Water Bill, Meter Test or Low/No Water Pressure

Meter test

If a meter test shows an inaccurate reading, Martin County says it will send an adjusted bill based on the previous 12 months of water use.

If meter is correct

If the test says the meter was functioning properly, a $20 meter-test charge appears on the next bill.

Low/no pressure

Possible causes include line breaks, maintenance, plumbing leaks and other issues. Submit a request and include the location.

Issue
Check first
What to submit or say
High bill
Toilets, faucets, irrigation controller, pool fill, soft ground, usage history.
“Usage increased from [old gallons] to [new gallons]. I checked [items]. Can you review the meter read and account history?”
Possible meter error
Current read, bill read, photo, no-water test, usage pattern.
Request a meter test using the county request form.
Low water pressure
All fixtures vs one fixture, neighbors affected, recent work, visible leak.
Submit a request and include the exact location.
No water
Account status, valve position, nearby outage, neighbor reports.
Call 772-221-1434 if urgent; use after-hours routing when closed.
Leak near meter
Meter box, public side vs private side, water movement, sidewalk/street hazard.
Report location and whether water is reaching pavement or property.
Request Meter Test Report Low / No Pressure Submit Request
High-bill script: “My bill increased unexpectedly. Account [number], service address [address]. I checked toilets, faucets, irrigation and visible leaks. Can you review the read, explain the usage tier, and tell me whether a meter test or adjustment review is appropriate?”

Water Bill Assistance: Lend a Hand Program

Who it helps

Qualifying Martin County Utilities customers experiencing temporary financial hardship.

Maximum assistance

Up to $400 per quarter, subject to fund availability.

Apply

Email financialassist@martin.fl.us or call 772-288-5785.

Requirement / contact
Official detail
Prepare
Customer status
Must be a Martin County Utilities customer.
Utility bill, account number, service address.
Residency
Must be a resident of Martin County.
ID, proof of address if requested.
Income
Must be below 300% of the federal poverty level.
Income documents or benefits documents if requested.
Crisis
Must have a crisis preventing payment.
Late notice, hardship explanation and payment plan for future bills.
Frequency
Can apply once every 90 days.
Track last assistance date and current delinquent bill.
Human Services
General emergency assistance questions: 772-288-5456.
Ask which program fits your utility, rent or electric need.
Emergency Financial Assistance Email Assistance Office Call 772-288-5785

Water Quality, Boil Water Notices and Service Line Inventory

Annual quality report

Martin County posts the previous calendar year’s drinking water quality report online by July 1 of the current year.

Boil notice

Use tap water only after boiling when a notice applies to drinking, cooking, ice, brushing teeth or other consumption uses.

Service line map

The county’s inventory says no lead lines have been found in the Martin County Utilities service area.

Topic
Official guidance
User action
Boil water notice
Bring water to a rolling boil for at least one minute, let it cool, and store it in clean covered containers.
Use boiled or bottled water until the county says the notice is lifted.
How long notices last
No fixed timeframe; notices remain until the problem is corrected and bacteriological testing confirms water is safe.
Wait for official lifted notice through the same method used for the original notice.
AlertMartin
County recommends signing up for AlertMartin for public safety messages, including boil water notices.
Enroll before hurricane season or planned work in your area.
Service line responsibility
Martin County owns the line from main to meter, including meter and meter box; the property owner owns meter-to-home plumbing.
Use the inventory map and call 772-221-1434 for questions.
Water quality report
Annual report summarizes drinking-water quality and monitoring.
Download the latest report before quoting contaminant results.
Drinking Water Quality Report Boil Water Notices Water Service Line Inventory AlertMartin

Irrigation Restrictions and Reclaimed Water

Odd addresses

Existing landscaping at odd-numbered addresses may water Wednesdays and Saturdays only.

Even addresses

Existing landscaping at even-numbered addresses may water Thursdays and Sundays only.

Time limit

Watering is not allowed between 10 a.m. and 4 p.m.

Rule / water type
Official detail
What customers should do
Where ordinance applies
Unincorporated Martin County, including Hobe Sound, Hutchinson Island county portion, Jensen Beach, North River Shores, Palm City, Port Salerno and Rio.
Municipal residents should check their local authority.
Odd address watering
Addresses ending 1, 3, 5, 7 or 9: Wednesdays and Saturdays only.
Set irrigation timer to allowed days and outside 10 a.m.-4 p.m.
Even address watering
Addresses ending 0, 2, 4, 6 or 8: Thursdays and Sundays only.
Check rain sensor and avoid overspray.
Multi-family/HOA/no address
Installations covering both even and odd addresses or without specific address water Thursdays and/or Sundays only.
HOAs should publish schedule to residents and vendors.
Reclaimed water
Reclaimed irrigation water is not restricted during droughts the same way as potable or well water, but it is not drinking water.
Do not drink, cook with, connect pipes to, fill pools/hot tubs, or irrigate certain edible crops with reclaimed water.
Variance
Variance requests may be available for hardship, smart irrigation, contiguous properties and other conditions.
Call Martin County Utilities & Solid Waste at 772-221-1434.
Landscape Irrigation Restrictions Reclaimed Water

Office, Mail, Email and Document Checklist

Office

Martin County Utilities Customer Service
3473 SE Willoughby Boulevard, Suite 102
Stuart, FL 34994

Mail

Martin County Utilities
PO Box 9000
Stuart, FL 34995-9000

Email from customer guide

cservice@martin.fl.us

For urgent issues, call instead of relying on email.

Task
Bring / include
Avoid
Open account
Service address, phone, driver’s license/tax ID, deposit if required.
Arriving after 2:30 p.m. expecting same-day new-account service.
Mail payment
Check/money order, stub and account number.
Cash in the mail.
Submit form/request
First/last name, address, account number, phone, email, exact request.
Unlabeled envelopes or missing account number.
High-bill review
Bill, meter photo, repair receipt, irrigation schedule, dates.
Requesting a meter test before checking toilets/irrigation/leaks.
Assistance
Bill, ID, proof of Martin County residence, income/crisis documents if requested.
Waiting until interruption day to ask for help.

Martin County Utilities Map

Location
Address
Use for
Martin County Utilities Customer Service
3473 SE Willoughby Boulevard, Suite 102, Stuart, FL 34994
Pay in person, account help, start/stop/transfer service, service questions, documents.
Payment/correspondence mail
Martin County Utilities, PO Box 9000, Stuart, FL 34995-9000
Mail payments and automatic bank payment paperwork when timing allows.
County main reference
2401 SE Monterey Road, Stuart, FL 34996
General county government reference, not the primary utilities payment counter.

Martin County Water Utilities FAQ

What is the Martin County Utilities phone number?

Call 772-221-1434 for Martin County Utilities customer service, phone payments, new service, transfer/close questions and after-hours/weekend utility emergencies.

Where do I pay my Martin County water bill online?

Use the official Martin County Utility Online BillPay page at onlinebiller.com/martincnty. Existing users can log in, and QuickPay is available without enrollment.

Can I pay without creating an online account?

Yes. Martin County Utility QuickPay says no enrollment is required and allows customers to view current balance and make a one-time payment with a credit/debit card or bank account.

What are Martin County Utilities customer service hours?

Customer Service representatives are available Monday through Friday, 8 a.m. to 5 p.m., except major holidays. After-hours and weekend emergencies still use 772-221-1434.

Where is the Martin County Utilities office?

The Customer Service office is at 3473 SE Willoughby Boulevard, Suite 102, Stuart, FL 34994.

How do I start new water or sewer service?

Call 772-221-1434 or visit the Stuart office. Martin County may request your address, phone number, driver’s license number or tax ID, existing account number and deposit. If the location has never had service, an application and required fees are needed.

Is same-day new service available after 2:30 p.m.?

No. Martin County says that beginning May 11, 2026, same-day service for new accounts will no longer be available after 2:30 p.m.

What should I do if my Martin County Utilities bill is past due?

Call 772-221-1434. The Online BillPay page tells past-due customers to contact the Customer Service Center to avoid interruption of service.

Can I request a meter test for a high bill?

Yes. Submit a request for a meter test. If the meter reading is inaccurate, Martin County says it will send an adjusted bill based on the previous 12 months of water use. If the meter is correct, a $20 meter-test charge appears on the next bill.

How can I get help paying my Martin County water bill?

Check the Lend a Hand Program. Qualifying Martin County Utilities customers experiencing temporary financial hardship may receive help up to $400 per quarter, subject to funds. Email financialassist@martin.fl.us or call 772-288-5785.

30-Second Martin County Utilities Checklist

Pay/login: Online BillPay → Existing Customer Login or QuickPay → save confirmation.

Call: 772-221-1434 for customer service, phone payment, start/stop/transfer and after-hours emergencies.

Visit: 3473 SE Willoughby Boulevard, Suite 102, Stuart, FL 34994, Monday-Friday 8 a.m.-5 p.m.

Past due: call before relying only on online payment to avoid service interruption.

New service: prepare ID/account details and deposit; same-day new-account service is unavailable after 2:30 p.m. beginning May 11, 2026.

Water Bill Payment, Leak & Utility Help Toolkit

Use this free helper to find the official water bill portal, avoid unsafe payment pages, handle late bills, troubleshoot high usage, prepare start/stop service documents, and contact the utility office with the right details.

Find official payment pages safely
Prepare before late fees or shutoff
Check high bill and leak causes
Useful on every city water guide

Official Water Bill Portal Finder

Enter your city, state, and utility name. This tool creates safe search shortcuts for the official bill pay portal, customer service page, outage line, and start/stop service page.

Safety tip: Use the official city, county, or utility website when paying a water bill. Do not enter card or bank details on a page that only looks like a payment portal but does not clearly identify the official utility.

Safe Water Bill Payment Checklist

Before paying online, use this checklist to reduce the risk of wrong payment, duplicate payment, missed receipt, or third-party confusion.

Important: Some official utilities use third-party processors. That can be normal, but the payment processor should be linked from the official utility website and show clear fee/payment details.

Late Bill, Shutoff Notice & Reconnection Action Plan

Select your situation and get practical next steps. This helps users act quickly without guessing.

Do not wait: If you received a shutoff notice, online payment alone may not stop disconnection. Call the utility billing office and save your confirmation number.

High Water Bill & Leak Troubleshooter

A high bill can be caused by leaks, irrigation, estimated readings, seasonal use, or account/meter issues. Choose the closest problem below.

Quick leak test Turn off all water, then check whether the meter still moves.
Toilet check Put food coloring in tank. If color reaches bowl without flushing, there may be a leak.
Ask utility Request usage history, meter reread, leak adjustment policy, and payment arrangement options.

Start, Stop or Transfer Water Service Checklist

Moving in or out? Choose your situation and prepare the details most utilities commonly request.

Your preparation checklist

Move-out tip: Ask for a final meter read, final bill date, refund/deposit process, and confirmation number when stopping service.

Payment Assistance & Arrangement Finder

If you cannot pay the full water bill, this guide helps you decide what to ask before disconnection or extra fees.

Helpful document list: Keep your account number, photo ID, service address, bill copy, shutoff notice, income proof if needed, repair receipt if leak-related, and payment confirmation numbers.

Water Department Call Script Generator

Generate a clear call or email script before contacting the utility billing office.

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