Cobb Water Account Help Center for QuickPay, CSS Portal, Late Bills & Leak Adjustments
Use this Cobb County guide when you need to pay a water bill, find your new 9-digit account number, register for the CSS Portal, set up autopay, avoid disconnection, request a payment plan, apply for a leak credit, or understand water/sewer/stormwater charges.
Every section includes the official link, phone number, office address, portal action, or fee beside the step so you can complete the task without guessing.
Fast answer: Cobb County Water System customers can pay through QuickPay with the 9-digit account number, or use the Customer Self-Service CSS Portal to manage the account, view bills/consumption, update contact information, request water service, set up autopay, and apply for a leak credit. Customer Service is 770-419-6200, and the Customer Service Facility is 660 South Cobb Drive, Marietta, GA 30060.
Past-due warning: if the current balance is unpaid 10 days after the due date, Cobb says the customer is delinquent, gets a $10 late fee, and may be disconnected. A $50 delinquency fee is assessed when disconnection is created. Full past-due balance plus the $50 fee must be paid before 3pm for same-day restoration.
Cobb County Water Bill Quick Facts
Cobb County Water Bill Action Board
Choose your situation. Each card gives the official link or contact beside the action.
I need to pay without logging in
Use QuickPay. You only need the 9-digit account number from the top right of the bill.
Open QuickPayI want to manage my account
Register in the CSS Portal with email, account number, and activation token from the bill.
Open CSS PortalI am past due
Pay the full past-due balance immediately. To set up a payment plan, email Cobb Water Customer Service.
Email payment plan requestMy service was disconnected
Pay the full past-due balance plus $50 delinquency fee. Online payments post immediately and restores are generated automatically.
Read restore rulesMy bill is high because of a leak
Repair the leak, keep receipts, and apply for a partial leak adjustment in the CSS Portal.
Leak credit rulesI see sewer backup or broken line
Call emergency response/dispatch at 770-419-6201 only for sewer backup or a gushing/severe broken water line.
Call emergency dispatchQuickPay vs CSS Portal: Which One Should You Use?
| Need | Use this | What you need | Official action |
|---|---|---|---|
| Pay without account setup | QuickPay | 9-digit account number from upper right of bill. | Open QuickPay |
| Register online account | CSS Portal | Email address, account number, activation token from above the payment coupon. | Register/sign in |
| Manage account | CSS Portal | Login credentials after registration. | Portal explanation |
| Apply for leak credit | CSS Portal | Address, account number, leak explanation, repair receipt/parts receipt/repair letter. | Leak adjustment page |
| Move-in request | CSS Portal | Account/service details requested by Cobb Water. | Start portal request |
Official Cobb County Water Payment Options
CSS Portal
Register and manage account, view bills/consumption, update contact info, and make online requests.
Open portalPhone pay
Call 770-419-6200. Cobb says you do not need to speak with a representative; have account number and follow prompts.
Call 770-419-6200PayPal
Cobb says PayPal payments will not show up immediately and a small service fee may be assessed.
Payment optionsPast-Due Bill, Disconnection and Same-Day Restore Rules
$10 late fee
If payment is not made on the current balance 10 days after the bill due date, Cobb says the customer becomes delinquent and gets a $10 late fee.
Delinquency rules$50 delinquency fee
A $50 delinquency fee and deposit, if applicable, are assessed when the disconnection is created.
Read fee rule3pm same-day restore
Full past-due balance plus $50 fee must be paid before 3pm to be restored the same day. Payments after 3pm restore next business day.
Pay full balancePast-due call/email script
Payment Plan and Water Bill Assistance
Ask Cobb Water for a payment plan
Cobb says customers who need to set up a payment plan should contact Customer Service by email.
Email Customer ServiceApply for outside assistance
Cobb lists organizations that may help with utility expenses during hardship, but says it does not determine eligibility or funding status.
Assistance pageKeep paying or arrange payment
Cobb says customers should continue paying and/or make a payment arrangement while applying for assistance.
Open CSS PortalSend assistance confirmation
Once assistance is confirmed, email confirmation to ccwscustomerservice@cobbcounty.gov to avoid disconnection.
Email confirmationMove-In, Start, Stop or Transfer Water Service
Move-in request
The CSS sign-in page includes a Move in request option. Use it when service needs to begin at a property.
Start move-in requestPortal requests
Cobb says CSS Portal customers can make online requests, including water service requests.
Portal detailsCall before closing date
For account-specific service start/stop/transfer questions, call 770-419-6200 or email Customer Service.
Call Customer ServiceHigh Cobb Water Bill? Apply for Leak Credit the Right Way
Leak credit rule
Cobb’s Leak Credit Policy gives a partial credit for eligible leaks once in a rolling 12-month period and no more than two affected months. It does not fully compensate for a leak.
Leak adjustment pageWhat to submit
- Address and account number.
- Brief explanation of the type of leak.
- Plumbing repair receipt, parts receipt, or repair explanation letter.
- Pool volume for pool leak credits.
- Continue paying while the credit is processed.
Most common indoor leak
Cobb says the most common leak inside the home is a toilet leak, and many silent toilet leaks are caused by damaged flappers.
Freeze-drip note
Cobb says temporary dripping during cold weather is usually around 50 gallons or less and is not considered an ongoing leak.
Billing increment
Cobb bills based on usage in 1,000-gallon increments, so tiny temporary drips may not visibly affect most bills.
2026 Cobb Water, Sewer and Stormwater Bill Items
Cobb bills monthly. The water meter is read monthly to determine consumption. The rates below are listed effective June 1, 2026.
| Bill item | Official detail | What it means | Official link |
|---|---|---|---|
| Monthly service charge | Most standard 5/8" or 3/4" meters: $8.00 per month. | Fixed fee charged even if usage is low. | Understand bill |
| Residential water tier 1 | 1,000–3,000 gallons: $3.85 per 1,000 gallons. | Lower tier for first range of residential use. | Rates page |
| Residential water tier 5 | 50,000 gallons and above: $11.25 per 1,000 gallons. | Higher usage gets more expensive; conservation matters. | Rate calculator |
| Wastewater/sewer | $7.51 per 1,000 gallons. | Sewer can make a high-usage bill much larger. | Sewer rate |
| Irrigation | $11.25 per 1,000 gallons. | Irrigation-heavy months can raise bills quickly. | Irrigation rate |
| Stormwater | Residential: $4.75 monthly; non-residential: $4.75 per 3,700 sq ft impervious area monthly. | Applies to unincorporated Cobb and City of Mableton properties. | Stormwater detail |
Emergency Dispatch, Sewer Backup and Stormwater Contacts
Emergency dispatch
Call 770-419-6201 only for sewer backup in home/street or broken water line with gushing/severe leaks.
Call 770-419-6201Stormwater outside road right-of-way
Call 770-419-6435 or email stormwater@cobbcounty.gov.
Email stormwaterDrainage in road right-of-way
Cobb lists 770-528-1600 for drainage inquiries in the road right-of-way.
Call 770-528-1600Local Cobb County Tips That Save Time
Best path by situation
- Quick payment: use QuickPay with 9-digit account number.
- Full account tools: use CSS Portal with activation token.
- Past due: pay full balance immediately and request payment plan by email if needed.
- Disconnected: pay full past due plus $50 fee before 3pm for same-day restore.
- Leak bill: repair first, keep receipt, then apply for credit in the portal.
Common mistakes to avoid
- Using an old bank bill-pay account number.
- Waiting for a paper bill and missing the due date.
- Paying only part of the past-due amount after disconnection.
- Calling emergency dispatch for normal billing questions.
- Assuming PayPal posts immediately.
- Applying for assistance but not emailing confirmed assistance to Cobb Water.
10 Cobb County Water Bill Attributes With Answers
| Attribute | Answer | Best action |
|---|---|---|
| Official QuickPay | Use ccw-css.cobbcounty.org/quickpay with 9-digit account number. | Pay now |
| CSS Portal setup | Email, account number, and activation token from bill are needed. | Register/login |
| Customer service phone | 770-419-6200. | Call Water System |
| Customer service address | 660 South Cobb Drive, Marietta, GA 30060. | Open map |
| Mailing payment address | PO Box 580234, Charlotte, NC 28258. | Verify payment options |
| Delinquency late fee | $10 if current balance is unpaid 10 days after due date. | Read delinquency |
| Disconnection fee | $50 delinquency fee when disconnection is created. | Pay full balance |
| Returned payment | $30 returned payment fee; two returns can require cash or money order for one year. | Returned payment rule |
| Leak credit | Partial credit once in rolling 12 months, up to two affected months. | Apply for leak adjustment |
| Emergency dispatch | 770-419-6201 for sewer backup or gushing/severe broken water line only. | Call emergency dispatch |
Cobb Water Customer Service Facility Map and Visit Plan
Use this for in-person billing help, drive-thru payment, or account-service questions at the Customer Service Facility.
Bring
Bill, 9-digit account number, ID, payment method, activation token if registering, and any leak repair documents.
Office windows
Lobby: 8am–5pm. Drive-thru: 7:30am–3:30pm. Call center has a midday closure window.
Ask before leaving
“Is my balance current, is disconnection cleared, and do I need a payment plan or leak adjustment request today?”
Official Cobb County Water Bill Links
Cobb County Water System Bill Pay FAQ
How do I pay my Cobb County water bill online?
Use Cobb Water QuickPay if you only want to make a payment with your 9-digit account number, or use the CSS Portal if you want full account management.
Where is my Cobb Water account number?
Cobb says the account number appears on the top right side of the bill, below the amount due and payment due date.
What do I need to create a CSS Portal account?
You need an email address, your account number, and the activation token printed on the bill above the payment coupon.
What is the Cobb County Water customer service phone number?
Call Cobb County Water System Customer Service at 770-419-6200.
Where is the Cobb Water Customer Service Facility?
The Customer Service Facility is at 660 South Cobb Drive, Marietta, GA 30060.
What happens if my Cobb water bill is late?
If the current balance is unpaid 10 days after the bill due date, Cobb says the customer is delinquent, gets a $10 late fee, and is subject to disconnection.
How do I restore disconnected Cobb water service?
Pay the full past-due balance plus the $50 delinquency fee. Cobb says payment before 3pm can restore the same day; after 3pm restores next business day.
Do I need to call after paying a disconnected Cobb Water account?
Cobb says online payments post immediately and restores are generated automatically after the full past-due balance and $50 delinquency fee are paid.
Can I get help paying a Cobb County water bill?
Cobb lists outside organizations that may provide partial utility assistance. While applying, keep paying or make a payment arrangement, and email confirmed assistance to ccwscustomerservice@cobbcounty.gov.
How do I apply for a Cobb Water leak credit?
Log in to the CSS Portal and apply for a partial leak adjustment. Have the address, account number, leak explanation, and repair receipt, parts receipt, or repair letter ready.