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Union, LA

Flood Risk Score: 19/100 · Rank #239 of 3,277 counties

Union County in Louisiana has 22 FEMA disaster declarations on record covering 1983–2024, most recently Tropical Storm Francine on Sep 10, 2024 (DR-3614). Its flood risk grade is A (Low risk), ranking #239 of 3,277 U.S. counties, with 28 NFIP flood insurance claims totaling $1,159,003 in payouts. Flood risk is relatively low compared to the national average.

19
Risk Score
28
NFIP Claims
$1,159,003
Total Payouts
22
Disasters
$41,393
Avg Claim
28
Active Policies

FEMA Disaster Declarations in Union County

The 22 most recent federally declared disasters affecting Union County, LA (1983–2024). Total declarations on record: 22.

DeclaredIncident TypeTitleFEMA Disaster #
Sep 10, 2024HurricaneTropical Storm FrancineDR-3614
Sep 13, 2021Coastal StormTropical Storm NicholasDR-3574
Aug 29, 2021HurricaneHurricane IdaDR-4611
Aug 27, 2021HurricaneTropical Storm IdaDR-3568
Oct 27, 2020HurricaneTropical Storm ZetaDR-3549
Oct 16, 2020HurricaneHurricane Delta DR-4570
Oct 7, 2020HurricaneHurricane Delta DR-3547
Sep 14, 2020HurricaneHurricane SallyDR-3543
Aug 28, 2020HurricaneHurricane LauraDR-4559
Aug 23, 2020HurricaneTropical Storms Laura and MarcoDR-3538
Jun 7, 2020Coastal StormTropical Storm Cristobal DR-3527
Mar 13, 2016FloodSevere Storms and FloodingDR-4263
Aug 29, 2012HurricaneHurricane IsaacDR-4080
Sep 13, 2008HurricaneHurricane IkeDR-1792
Sep 2, 2008HurricaneHurricane Gustav DR-1786
Aug 29, 2008HurricaneHurricane GustavDR-3289
Sep 24, 2005HurricaneHurricane Rita DR-1607
Sep 21, 2005HurricaneHurricane RitaDR-3260
Aug 29, 2005HurricaneHurricane KatrinaDR-1603
Aug 27, 2005HurricaneHurricane KatrinaDR-3212
May 20, 1989FloodSevere Storms & FloodingDR-829
Jan 11, 1983FloodSevere Storms and FloodingDR-675

Score Breakdown

The composite score of 19 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
47
Claim Severity
20%
0
Year-over-Year Trend
15%
50

Other Counties in Louisiana

CountyGradeScoreClaimsDisasters
BienvilleA19122
ClaiborneA19721
De SotoA19021
LincolnA19421
Red RiverA19022
TensasA19021
View All Counties in Louisiana

Frequently Asked Questions

How many FEMA disaster declarations does Union County, LA have?

Union County, LA has 22 federal disaster declarations on FEMA record (1983–2024). The 5 most recent are: Tropical Storm Francine (declared Sep 10, 2024, DR-3614); Tropical Storm Nicholas (declared Sep 13, 2021, DR-3574); Hurricane Ida (declared Aug 29, 2021, DR-4611); Tropical Storm Ida (declared Aug 27, 2021, DR-3568); Tropical Storm Zeta (declared Oct 27, 2020, DR-3549). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Union County, LA?

Union County is graded A (composite score 19/100, low risk). It ranks #239 of 3,277 U.S. counties for flood risk in our scoring model. The grade combines NFIP claims density (40%), disaster frequency (25%), claim severity (20%), and year-over-year trend (15%).

How many NFIP flood insurance claims have been filed in Union County?

28 NFIP flood insurance claims have been filed in Union County, LA, totaling $1,159,003 in payouts. The average claim is $41,393. Source: FEMA FimaNfipClaims v2 dataset.

Has Union County, LA had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Union County was Tropical Storm Francine on Sep 10, 2024 (DR-3614). The county has 22 declared disasters in the OpenFEMA record covering 1983–2024.

The this entity record above pulls directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. What follows is the per-entity context — how this entity sits in the broader U.S. flood risk, NFIP claims, and disaster declarations distribution and which underlying factors drive the headline numbers.

The methodology behind every numeric value on this page is publicly documented on the FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.

Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.

Source: FEMA OpenFEMA datasets, 2026.