Cedar Park, TX: Flood Zones and Water Shut-Off
Cedar Park Public Works answers water shut-off calls at 512-401-5550 in business hours; after hours and holidays, city dispatch answers at 512-260-4600, ext. 0.
Shut Off Your Water First
During normal business hours, call Cedar Park Public Works at 512-401-5550 and a technician will be dispatched to assist you. After hours or during a scheduled holiday, call 512-260-4600, extension 0, and the city's dispatch team will help instead.
- Use your home's main shut-off valve if you can reach it safely. Do not force a valve you cannot operate; seek qualified help.
- Business hours: Public Works, 512-401-5550.
- After hours and holidays: Dispatch, 512-260-4600, extension 0.
- Keep both numbers somewhere you can find them quickly, since which one applies depends on when the problem starts.
For addresses the City of Cedar Park serves, which number to call does not depend on how bad the water damage looks — it depends on the time of day and whether it is a scheduled holiday. Business hours route to Public Works directly; anything outside that window routes through Dispatch, which then contacts the right city staff on your behalf. Check your water bill to confirm the city is your provider — some Cedar Park addresses are served by a separate municipal utility district instead, which publishes its own contacts.
This page is general information, not legal or insurance advice. For a specific situation, talk with your insurer, an attorney or a qualified provider.
Where the City's Responsibility Ends
Cedar Park maintains water service from the main in the street up to and including the meter at your property. Any repair needed beyond the meter, including the line running from the meter into your building, is the owner's responsibility, not the city's.
- City-maintained: the water main and the service line up to and including the meter.
- Owner-maintained: everything from the meter into the house, including interior plumbing.
For what this boundary means for a burst pipe specifically, including how it interacts with insurance and repair timing, see burst pipe water damage in Cedar Park. If standing water sat long enough for you to worry about mold, see mold after water damage in Cedar Park for the licensing rules that apply to cleanup.
Is Your Property in a Floodplain?
Cedar Park's Engineering Department answers floodplain and floodway questions for a specific address — call 512-401-5000 and have the property's legal address ready. The city's Floodplain and Stormwater page says it adopted its Stormwater Master Plan on March 28, 2019, and that most of Cedar Park sits within the recharge or contributing zone of the Edwards Aquifer.
| Question | Who to Contact | Phone | Checked |
|---|---|---|---|
| Is my address in a floodplain or floodway? | Engineering Department | 512-401-5000 | Checked: September 2026 |
| Water or wastewater billing | Utility Billing Department | 512-401-5300 | Checked: September 2026 |
| Building permit questions | Building Permits and Inspections | 512-401-5100 | Checked: September 2026 |
- ATXfloods is the regional site for real-time flood monitoring, low-water crossing and road closures, and traffic cameras in the Austin area.
- The LCRA Hydromet network of automated gauges reports river flow, water levels and rainfall across the lower Colorado River basin.
- Neither tool tells you whether a specific Cedar Park address sits in a floodplain; that answer still comes from the Engineering Department at 512-401-5000.
Central Texas is part of what forecasters call Flash Flood Alley, and Williamson County has seen fast-rising creeks after heavy rain, so an address-specific check is worth the phone call even if the property has not flooded before.
A flood zone designation is not the same thing as a history of flooding at a specific address, and it is not the same as your homeowners policy. Even a property outside a mapped floodplain can take on water in a heavy storm, so the Engineering Department's answer is a starting point for insurance decisions, not the final word on risk.
Outside City Limits: Williamson County
Cedar Park's own Engineering Department only has floodplain authority inside the city limits. If your property sits in the unincorporated part of Williamson County instead, the county's floodplain office handles the question at 512-943-3330.
- Inside Cedar Park city limits: Engineering Department, 512-401-5000.
- Unincorporated Williamson County: County floodplain management, 512-943-3330.
- A city address does not always mean you are inside that city's limits — the department you call can confirm.
- The Upper Brushy Creek Water Control and Improvement District models the Brushy Creek basin and plans flood protection that feeds Williamson County's flood maps.
Williamson County is explicit that a city has floodplain jurisdiction over its own corporate boundaries, not the county — so once you confirm you are inside Cedar Park, the city's Engineering Department is the right office going forward, not the county line.
Utility Billing and Building Permits
Questions about a water or wastewater bill go to the Utility Billing Department at 512-401-5300. Repairs that involve construction, electrical, plumbing or mechanical work generally require a building permit — call Building Permits and Inspections at 512-401-5100 before that work starts.
- Utility Billing Department: 512-401-5300.
- Building Permits and Inspections: 512-401-5100.
- Contractors doing repair work in Cedar Park are expected to register with the city — call 512-401-5100 if you need help confirming that.
Sorting these three numbers out before water damage happens saves time during an actual emergency: Public Works and Dispatch handle the water itself, Utility Billing handles your account, and Building Permits and Inspections handles permit questions before repair work starts.
For the broader picture of what to do in the first hour after water gets into your home, see water damage in Cedar Park, TX.
If That Did Not Work
If neither Cedar Park number connects, or the answer you get does not resolve the problem, there are other paths depending on where the issue sits.
- Try again: if you called 512-401-5550 outside business hours by mistake, try 512-260-4600, extension 0, instead, or vice versa.
- Try another route: if the problem is beyond your water meter, it is the owner's responsibility, so contact a local provider rather than the city.
- Contact the county: for floodplain questions in unincorporated Williamson County, the county's floodplain office is 512-943-3330.
Frequently Asked Questions
How do I shut off my water in Cedar Park?
Who do I call after business hours or on a holiday?
Is my property in a Cedar Park floodplain?
Does the Williamson County floodplain office handle my Cedar Park address?
What if Public Works does not answer or cannot get to me quickly?
Where do I pay my water bill or ask about my account?
Water in your home right now?
See who to call first in Cedar Park, how to reach your water provider, and how to check your flood zone.
Who to Call First in Cedar Park