Broken Arrow Flood Zones: How to Check Your Home
You can check your Broken Arrow flood zone two ways: look up your address on FEMA's flood map, or ask the City of Broken Arrow for a free floodplain determination. Zone AE means high risk; shaded Zone X means moderate risk; unshaded Zone X means minimal risk. Minimal isn't zero, and standard homeowners policies generally don't cover flooding in any zone.
Option 1: Ask the City (Free)
The City of Broken Arrow provides floodplain determinations at no charge, designating your property's flood zone and whether it's in the floodway. Contact the city's Stormwater Management division at 539-250-4191 ext. 3360 with your address and legal description. The city says written responses are mailed in about seven days, and phone or fax answers typically take 48 to 72 hours. The same office handles site visits for flooding concerns (City of Broken Arrow).
Option 2: Look It Up on FEMA's Map
- Go to FEMA's Flood Map Service Center at msc.fema.gov.
- Enter your Broken Arrow street address.
- Open the map panel for your area and find your lot.
- Read the zone label on your property, and check whether the property sits near a shaded area's edge.
The city notes that the Tulsa County incorporated-area maps and data have been effective since September 12, 2024. Broken Arrow also extends into Wagoner County; for homes on that side, confirm the current effective map with the city's floodplain administrator.
What the Zones Mean
| Zone | What FEMA says it means |
|---|---|
| Zone A or AE | Special Flood Hazard Area: land expected to flood in a flood that has a 1% chance of happening in any given year, often called the 100-year flood. AE zones have a set base flood elevation. |
| Zone X (shaded) | Moderate flood hazard: between the 1% annual chance flood and the 0.2% annual chance (500-year) flood. |
| Zone X (unshaded) | Minimal flood hazard: outside and above the 0.2% annual chance flood. |
Source: FEMA flood zones. A "1% chance" each year adds up over the life of a mortgage, so high-risk zones are taken seriously by lenders.
Do You Need Flood Insurance?
- In Zone A or AE with a federally backed mortgage, your lender will generally require flood insurance.
- In shaded Zone X, it's optional but worth pricing, because the risk is real.
- In unshaded Zone X, flooding is less likely, but heavy storms and poor drainage can still put water in homes.
Standard homeowners policies generally exclude rising floodwater, so flood coverage usually comes from a separate policy such as FEMA's National Flood Insurance Program. FEMA notes there's typically a 30-day waiting period before a new flood policy takes effect (FEMA), so buy it before storm season, not when rain is forecast. See how insurers treat flood vs. water damage coverage.
Outside a Flood Zone? Water Can Still Get In
A lot of water damage in Broken Arrow homes doesn't come from mapped floodplains at all. It's from burst pipes, slab leaks, appliance failures and storm water damage, when hail or wind open a roof, or wind-driven rain gets past doors and windows. Local street flooding and poor lot drainage can also push water inside homes far from any creek.
If Your Home Floods
- Stay out of floodwater; it can hide debris and carry sewage and chemicals.
- Don't go back into a flooded home until it's safe and the power is off or checked.
- Photograph the waterline and damage before cleaning.
- Contact your flood insurer, if you have one, and your homeowners insurer.
- Start professional flood cleanup quickly; floodwater-soaked carpet, pad and lower drywall are usually removed and surfaces disinfected.
Water in your home now? Call (918) 739-1874.
Quick Answers
How do I find out if my house is in a flood zone in Broken Arrow?
Ask the City of Broken Arrow's Stormwater Management division for a free floodplain determination at 539-250-4191 ext. 3360, or look up your address on FEMA's Flood Map Service Center at msc.fema.gov.
What does Zone AE mean?
Zone AE is a high-risk area FEMA expects to flood in a flood with a 1% chance of happening in any year, with a set base flood elevation. Lenders generally require flood insurance there for federally backed mortgages.
Do I need flood insurance in Zone X?
It isn't usually required, but it can still be worth having, especially in shaded Zone X. Floods also happen outside mapped zones, and homeowners policies generally don't cover them.
How long does flood insurance take to start?
NFIP policies typically have a 30-day waiting period before coverage begins, so it needs to be in place well before a storm.