Grand Prairie, TX Flood Zone Lookup
Last updated: March 2026
Grand Prairie in the Dallas-Fort Worth metro faces flooding from the West Fork Trinity River and Johnson Creek. The city holds a CRS Class 4 rating with a 30% flood insurance discount, reflecting an exceptionally strong floodplain management program. CRS classifications are reviewed periodically and may change over time.
Dallas County has recorded 3,427 NFIP flood insurance claims since 1978, totaling $67.9M in payouts. Explore the full NFIP claims data by state and county to see how this area compares nationally.
FEMA Region
Region 6
NFIP Policies
7,832
Dallas County
Avg. Premium
$816/yr
Dallas County
FEMA Flood Risk Profile: Dallas County
Based on FEMA's National Risk Index, which evaluates flood risk at the county level using historical loss data, exposure, and vulnerability.
Inland Flood Risk
Very HighEst. annual loss: $323.7M
Hurricane Risk
Relatively LowEst. annual loss: $676K
Source: FEMA National Risk Index, county-level assessment. Individual property risk may vary.
Federal Flood Disaster History: Dallas County
Dallas County has been included in 12 federal flood-related disaster declarations.
...and 4 earlier declarations since 1966.
These declarations affected communities across Dallas County, including Grand Prairie.
Source: OpenFEMA Disaster Declarations Summaries API. Data sourced February 2026.
NFIP Flood Insurance Claims: Dallas County
Properties in Dallas County have filed 3,427 NFIP flood insurance claims totaling $67.9M in payouts since 1978. The average claim payout is $20K.
Highest-Claim Years
1991
344 claims - $4.7M
1989
266 claims - $4.0M
1995
265 claims - $3.5M
Claims by Flood Zone
Source: OpenFEMA NFIP Claims API. Data sourced March 2026. See national claims data.
Flood Insurance Coverage: Dallas County
Only roughly 1 in 132 households in Dallas County carries NFIP flood insurance (0.8% of estimated households). With 304 recorded flood events and $1.4B in damage, most flood losses in this county are likely uninsured.
Penetration Rate
0.8%
roughly 1 in 132 households
Historical Claims Ratio
1 in 2
3,427 claims over 45+ years across 7,832 current policies
Avg. Claim Payout
$19,820
Per claim, county-wide since 1978
Historically, Dallas County has averaged 1 claim for every 2 active policies (since 1978). This compares cumulative claims against today's policy count and does not predict future claim likelihood.
Coverage data: NFIP policies as of March 2026, claims since 1978 (March 2026), population from FEMA NRI. All figures are county-wide and include Grand Prairie.
What Your Flood Zone Means in Grand Prairie
Grand Prairie faces multiple inland flood threats, including riverine flooding from nearby waterways and flash flooding from intense rainfall overwhelming urban drainage systems. Properties near river corridors face the highest risk, but stormwater backup can affect neighborhoods well outside the mapped floodplain. The most common FEMA flood zone designations in Grand Prairie are Zone AE, Zone AO, Zone X. FEMA's National Risk Index estimates the county's annual expected loss from inland flooding at over $323.7M. Grand Prairie has Zone AO areas subject to sheet-flow flooding, where shallow water spreads across broad, flat terrain rather than channeling through waterways.
With both riverine and urban stormwater flood risk, insurance costs in Grand Prairie depend heavily on a property's elevation relative to nearby waterways and the local drainage infrastructure. FEMA's Risk Rating 2.0 prices in multiple inland flood sources rather than relying on the flood zone line alone. If your property is in a Special Flood Hazard Area (SFHA) and you have a federally regulated or government-backed mortgage, federal law generally requires your lender to ensure you carry flood insurance.
Flood zone boundaries in Grand Prairie can shift when FEMA updates its Flood Insurance Studies or when upstream development changes how water moves through the watershed. New stormwater infrastructure or dam modifications can also trigger map revisions. Use our free lookup tool to check the current flood zone for any Grand Prairie address.
Repetitive Loss Properties: Dallas County
Dallas County has 251 properties with multiple flood insurance losses, including 46 severe repetitive loss properties. 10 properties have received FEMA mitigation funding. Severe repetitive loss is a subset of multiple loss, not a separate count. Data sourced March 2026.
Multiple Loss
251
2+ claims within 10 years
Severe Repetitive Loss
46
4+ claims or 2 exceeding value
Mitigated
10
Received FEMA mitigation
By Flood Zone
Zone data available for 250 of 251 properties.
Source: OpenFEMA NFIP Multiple Loss Properties. Data sourced March 2026.
Recorded Flood Events: Dallas County
NOAA has recorded 304 flood events in Dallas County since 1996, causing $1.4B in damage and 13 deaths.
Costliest Events
Events by Type
Source: NOAA Storm Events Database, 1996-2026. Data sourced March 2026.
Flood Mitigation: Dallas County
FEMA has funded mitigation for 455 properties in Dallas County, investing $2.2M in flood risk reduction. Common mitigation actions include acquisition (buying and demolishing flood-prone structures), elevation (raising buildings above flood level), and safe rooms (wind/storm shelters for tornado and hurricane protection).
By Action Type
Source: OpenFEMA Hazard Mitigation Assistance. Data sourced March 2026.
Flood Insurance Discount: Grand Prairie
Grand Prairie participates in FEMA's Community Rating System (CRS), a voluntary program that rewards communities for flood mitigation efforts beyond minimum NFIP requirements. Residents in the Special Flood Hazard Area may qualify for reduced flood insurance premiums.
CRS Class
Class 4
SFHA Premium Discount
30% off
CRS classes range from 1 (best) to 10 (no discount). Grand Prairie's Class 4 rating means NFIP policyholders in the SFHA can receive up to a 30% discount on their flood insurance premiums. Properties outside the SFHA may receive a 10% discount.
Source: FEMA Community Rating System, April 2026. Discounts apply to NFIP policies only.
Grand Prairie, TX Flood Zone FAQ
What flood zones are in Grand Prairie, TX?
The most common FEMA flood zones in Grand Prairie are Zone AE, Zone AO, Zone X. Properties in these high-risk zones (SFHA) may require flood insurance with a federally regulated or government-backed mortgage.
Is flood insurance required in Grand Prairie?
If your Grand Prairie property is in a Special Flood Hazard Area (SFHA) and you have a federally regulated or government-backed mortgage, federal law generally requires your lender to ensure you carry flood insurance. Properties in Zone X are not federally required to carry flood insurance, though coverage is still recommended since over 40% of all NFIP flood claims come from Zone X properties.
How do I check my flood zone in Grand Prairie?
Enter your Grand Prairie address in the search tool above for an instant flood zone determination. Results include your FEMA flood zone, SFHA status, base flood elevation (if available), and FIRM panel information, pulled directly from FEMA's National Flood Hazard Layer.
Does Grand Prairie offer flood insurance discounts?
Yes. Grand Prairie participates in FEMA's Community Rating System (CRS) with a Class 4 rating, qualifying residents in the Special Flood Hazard Area for up to a 30% discount on NFIP flood insurance premiums. Properties outside the SFHA may receive a 10% discount.
Has Grand Prairie experienced major flooding events?
Dallas County, where Grand Prairie is located, has been part of 12 federal disaster declarations for flooding, hurricanes, or severe storms. The most recent was Severe Storms, Straight-Line Winds, Tornadoes, and Flooding in 2024. Federal disaster declarations are issued when flooding overwhelms local resources and triggers FEMA assistance programs.
How many flood insurance claims have been filed in Grand Prairie?
Dallas County has recorded 3,427 NFIP flood insurance claims totaling $67.9M in payouts since 1978. The year with the most claims was 1991, with 344 claims and $4.7M in payouts. These figures cover all NFIP claims in the county, including Grand Prairie.
How many flood insurance policies are active in Grand Prairie?
Dallas County currently has 7,832 active NFIP flood insurance policies with an average annual premium of $816. The most policies are in Zone X (3,876 policies). These figures cover all active NFIP policies in the county.
How many Grand Prairie properties have flooded repeatedly?
Dallas County has 251 properties with multiple flood losses on record, including 46 severe repetitive loss properties. These are properties that have experienced four or more NFIP claims of $5,000+ or two claims exceeding the building value.
Can my Grand Prairie property be removed from a high-risk flood zone?
Yes, if your property's natural ground elevation is above the Base Flood Elevation and FEMA inadvertently mapped it in a high-risk zone, you can apply for a Letter of Map Amendment (LOMA). A successful LOMA removes the property from the Special Flood Hazard Area, generally eliminating the federal mandatory flood insurance requirement. You will need an elevation certificate from a licensed surveyor. If a property was raised above the BFE with fill material, the process is a LOMR-F rather than a LOMA.
What is Base Flood Elevation in Grand Prairie?
Base Flood Elevation (BFE) is the predicted height of floodwaters during a 1% annual chance (100-year) flood, shown on FEMA maps as an elevation number in feet above sea level. In Grand Prairie's Zone AE areas, BFE lines appear on the FIRM as wavy contours labeled with elevation values. Properties with a lowest floor at or above the BFE typically qualify for significantly lower NFIP flood insurance premiums.
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Disclaimer: Flood risk data on this page is sourced from FEMA datasets including the National Risk Index, NFIP claims and policy records, disaster declarations, and the Community Rating System. These datasets were last extracted on March 2026 and may not reflect the most recent changes. This page is for informational purposes only and is not a certified flood zone determination. Always verify current flood zone status through FEMA or a licensed determination provider before making property, insurance, or lending decisions.