Port Allen, LA Flood Zone Map
Last updated: August 2026
Port Allen sits on the west bank of the Mississippi River across from Baton Rouge, protected by levees after the 1867 "Great Crevasse" levee break flooded the parish. The river's flood stage at Port Allen is 35 feet, and the city remains dependent on levee integrity during high water.
West Baton Rouge Parish has recorded 285 NFIP flood insurance claims since 1978, totaling $7.4M 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
1,594
West Baton Rouge Parish
Avg. Premium
$481/yr
West Baton Rouge Parish
NFIP Flood Insurance Claims: West Baton Rouge Parish
Properties in West Baton Rouge Parish have filed 285 NFIP flood insurance claims totaling $7.4M in payouts since 1978. The average claim payout is $26K.
Highest-Claim Years
1980
34 claims - $84K
2008
29 claims - $324K
2016
26 claims - $734K
Claims by Flood Zone
Source: OpenFEMA NFIP Claims API. Data sourced August 2026. See national claims data.
Flood Insurance Coverage: West Baton Rouge Parish
Only roughly 1 in 7 households in West Baton Rouge Parish carries NFIP flood insurance (15% of estimated households). This county has elevated flood risk with below-average insurance coverage, meaning many flood losses may go uninsured.
Penetration Rate
15%
roughly 1 in 7 households
Historical Claims Ratio
1 in 6
285 claims over 45+ years across 1,594 current policies
Avg. Claim Payout
$26,109
Per claim, county-wide since 1978
Historically, West Baton Rouge Parish has averaged 1 claim for every 6 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 August 2026, claims since 1978 (August 2026), population from FEMA NRI. All figures are county-wide and include Port Allen.
Not sure whether you're required to carry it? See do I need flood insurance?, or compare NFIP vs. private flood insurance.
Repetitive Loss Properties: West Baton Rouge Parish
West Baton Rouge Parish has 22 properties with multiple flood insurance losses, including 5 severe repetitive loss properties. 1 properties have received FEMA mitigation funding. Severe repetitive loss is a subset of multiple loss, not a separate count. Data sourced August 2026.
Multiple Loss
22
2+ claims within 10 years
Severe Repetitive Loss
5
4+ claims or 2 exceeding value
Mitigated
1
Received FEMA mitigation
By Flood Zone
Source: OpenFEMA NFIP Multiple Loss Properties. Data sourced August 2026.
Flood Insurance Discount: Port Allen
Port Allen has no CRS rating of its own, but it sits in West Baton Rouge Parish, which 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 8
SFHA Premium Discount
10% off
CRS classes range from 1 (best) to 10 (no discount). West Baton Rouge Parish's Class 8 rating means NFIP policyholders in the SFHA can receive up to a 10% discount on their flood insurance premiums. Properties outside the SFHA may receive a 5% discount.
Source: FEMA Community Rating System, April 2026. Discounts apply to NFIP policies only.
Federal Flood Disaster History: West Baton Rouge Parish
West Baton Rouge Parish has been included in 30 federal flood-related disaster declarations.
...and 22 earlier declarations since 2008.
These declarations affected communities across West Baton Rouge Parish, including Port Allen.
Source: OpenFEMA Disaster Declarations Summaries API. Data sourced August 2026.
Recorded Flood Events: West Baton Rouge Parish
NOAA has recorded 10 flood events in West Baton Rouge Parish since 1996, causing $1.8M in damage and 1 death.
Costliest Events
Events by Type
Source: NOAA Storm Events Database, 1996-2026. Data sourced August 2026.
Flood Mitigation: West Baton Rouge Parish
FEMA has funded mitigation for 7 properties in West Baton Rouge Parish, investing $11K 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 August 2026.
FEMA Flood Risk Profile: West Baton Rouge Parish
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 LowEst. annual loss: $2.1M
Coastal Flood Risk
Very LowEst. annual loss: $0
Hurricane Risk
Relatively ModerateEst. annual loss: $3.3M
Source: FEMA National Risk Index, county-level assessment. Individual property risk may vary.
What Your Flood Zone Means in Port Allen
Port Allen faces flood risk primarily from river and stream overflow during heavy rainfall, snowmelt, or upstream dam releases. When rivers exceed their banks, floodwaters spread across low-lying areas mapped in AE and A zones. The most common FEMA flood zone designations in Port Allen are Zone A, Zone X, Zone AE. FEMA's National Risk Index estimates the county's annual expected loss from inland flooding at over $2.1M.
Riverine flood risk in Port Allen is driven by the proximity and elevation of properties relative to nearby waterways. Properties closer to rivers with lower ground elevations typically face higher flood insurance premiums under FEMA's Risk Rating 2.0. 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.
River flood maps can change when FEMA conducts new Flood Insurance Studies or when development alters drainage patterns. Letters of Map Amendment (LOMA) can remove individual properties if the natural ground elevation was always above the Base Flood Elevation and the property was inadvertently mapped in the SFHA. Use our free lookup tool to check the current flood zone for any Port Allen address.
Port Allen, LA Flood Zone FAQ
What flood zones are in Port Allen, LA?
The most common FEMA flood zones in Port Allen are Zone A, Zone X, Zone AE. Properties in these high-risk zones (SFHA) may require flood insurance with a federally regulated or government-backed mortgage.
Is flood insurance required in Port Allen?
If your Port Allen 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 about a quarter of all NFIP flood claims come from properties outside high-risk zones.
How do I check my flood zone in Port Allen?
Enter your Port Allen 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 Port Allen offer flood insurance discounts?
Port Allen itself has no CRS rating, but it sits in West Baton Rouge Parish, which participates in FEMA's Community Rating System (CRS) with a Class 8 rating. Residents in the Special Flood Hazard Area qualify for up to a 10% discount on NFIP flood insurance premiums. Properties outside the SFHA may receive a 5% discount.
Has Port Allen experienced major flooding events?
West Baton Rouge Parish, where Port Allen is located, has been part of 30 federal disaster declarations for flooding, hurricanes, or severe storms. The most recent was Tropical Storm Francine 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 Port Allen?
West Baton Rouge Parish has recorded 285 NFIP flood insurance claims totaling $7.4M in payouts since 1978. The year with the most claims was 1980, with 34 claims and $84K in payouts. These figures cover all NFIP claims in the county, including Port Allen.
How many flood insurance policies are active in Port Allen?
West Baton Rouge Parish currently has 1,594 active NFIP flood insurance policies with an average annual premium of $481. The most policies are in Zone X (1,278 policies). These figures cover all active NFIP policies in the county.
How many Port Allen properties have flooded repeatedly?
West Baton Rouge Parish has 22 properties with multiple flood losses on record, including 5 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 Port Allen 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 Port Allen?
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 Port Allen'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.
Other Louisiana Cities
Understanding Flood Zones
See the Flood Map for Any Port Allen, LA Address
Enter a Port Allen, LA address to view its FEMA flood map, zone designation, SFHA status, and insurance requirements.
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 August 2026 and may not reflect the most recent changes. Always verify current flood zone status through FEMA or a licensed determination provider before making property, insurance, or lending decisions.