Official Municipal Guide

Boulder Water Department - Pay Bill, Contact, Address & Services

Everything you need for Boulder City Of — serving 1,400 residents in Boulder, MT.

πŸ“… Last updated: April 2026 πŸ›‘οΈ Verified Official Sources Only

Boulder Water Department Address

Po Box 68
Boulder, MT 59632
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Local Tip: Street parking near Boulder municipal offices fills up fast before 10 AM. Arrive early if paying in person or drop your check in the after-hours payment box.

Boulder Water Department Contact

Customer Service

(406) 225-3381

After-Hours Emergency

(406) 225-3381

Office Hours

Mon–Fri 8:00 AM – 5:00 PM

How to Pay Your Boulder Water Bill Online

1

Visit the Official Payment Page

Go to the Boulder City Of website. Look for the "Pay My Bill" or "Online Payments" section.

2

Enter Your Account Number

Find your account number on your paper bill (top-right corner). Enter it along with your last name or service address.

3

Choose a Payment Method

Select credit card, debit card, eCheck, or bank draft. eCheck is often free while cards may have a small convenience fee.

4

Confirm and Save Your Receipt

Review the total, submit payment, and save or screenshot your confirmation number. Payments usually post within 1-2 business days.

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Quick Tip: Payments made before 3 PM usually post the same business day. Weekend and holiday payments process the next business day.

Boulder Water Bill Payment Guide

Complete step-by-step payment instructions, accepted methods, billing tips, and more.

πŸ’‘ Boulder Insider Tips

Best Time to Call

Lines are shortest right when the office opens. Try calling at 8:00 AM on a Tuesday or Wednesday to skip the queue.

Save on Fees

Boulder accepts eCheck payments at no extra charge. Card payments may add a $2-3 convenience fee per transaction.

Start, Stop, or Transfer Water Service

Start New Service

Moving into Boulder? Contact Boulder City Of at least 3 business days before your move-in date.

βœ“ Valid photo ID required

βœ“ Proof of address (lease or deed)

βœ“ Deposit may apply for new accounts

Stop Service

Moving out? Request disconnection at least 2 business days ahead. You will receive a final bill.

βœ“ Final meter reading scheduled

βœ“ Forwarding address for final bill

βœ“ Deposit refunded within 30 days

Transfer Service

Moving within Boulder? Transfer your existing account instead of closing and reopening.

βœ“ Same account number kept

βœ“ No new deposit needed

βœ“ Processing: 1-3 business days

Report Water Issues in Boulder

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Water Leak

Notice water pooling near the street or sidewalk? Call Boulder City Of immediately. Do not try to access the meter box yourself.

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Sewer Backup

Call your utility before contacting a plumber. Boulder will check the main line first at no charge if the issue is on their side.

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Service Outage

No water? Check with your neighbors first. If the outage is widespread, call (406) 225-3381 for a restoration estimate.

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Real-Life Tip: Take a quick photo or video of the issue before calling. It helps dispatch prioritize and gives the crew a head start before arriving on site.

Boulder Water Billing & Fees

Billing Cycle Monthly
Late Payment Penalty 1.50% of balance
Online Card Fee $2-3 (eCheck is free)
Payment Methods
Cards eCheck Cash Check

Boulder Water Department FAQ

Visit the official Boulder City Of payment portal online. You can pay with a credit card, debit card, or eCheck. A guest pay option is available if you do not have an online account.

You can reach Boulder City Of at (406) 225-3381. The office is open during Mon–Fri 8:00 AM – 5:00 PM.

Boulder City Of is located at Po Box 68, Boulder, MT 59632.

Yes. Most municipal portals offer a one-time guest payment option. You only need your account number from a recent paper bill.

Call Boulder City Of immediately at (406) 225-3381. For after-hours emergencies, most departments have a 24/7 hotline. Do not attempt to fix a main line break yourself.

Contact Boulder City Of at (406) 225-3381 at least 3 business days before your move date. Bring a valid ID and proof of address to start new service.

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