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Navajo, AZ

Flood Risk Score: 12/100 · Rank #1017 of 3,277 counties

Navajo County in Arizona has 8 FEMA disaster declarations on record covering 1970–2021, most recently Severe Storms and Flooding on Sep 13, 2021 (DR-4620). Its flood risk grade is A (Low risk), ranking #1017 of 3,277 U.S. counties, with 3 NFIP flood insurance claims totaling $5,000 in payouts. Flood risk is relatively low compared to the national average.

12
Risk Score
3
NFIP Claims
$5,000
Total Payouts
8
Disasters
$1,667
Avg Claim
3
Active Policies

FEMA Disaster Declarations in Navajo County

The 8 most recent federally declared disasters affecting Navajo County, AZ (1970–2021). Total declarations on record: 8.

DeclaredIncident TypeTitleFEMA Disaster #
Sep 13, 2021FloodSevere Storms and FloodingDR-4620
Sep 12, 2005HurricaneHurricane Katrina EvacuationDR-3241
Jan 19, 1993FloodSevere Storms, Tornadoes & FloodingDR-977
Oct 5, 1983FloodSevere Storms & FloodingDR-691
Feb 19, 1980FloodSevere Storms & FloodingDR-614
Dec 21, 1978FloodSevere Storms & FloodingDR-570
Mar 4, 1978FloodSevere Storms & FloodingDR-551
Sep 22, 1970FloodHeavy Rains & FlashDR-294

Score Breakdown

The composite score of 12 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
17
Claim Severity
20%
0
Year-over-Year Trend
15%
50

Other Counties in Arizona

CountyGradeScoreClaimsDisasters
GilaA1278
GrahamA1238
PinalA1357
ApacheA1106
MaricopaA115810
GreenleeA1107
View All Counties in Arizona

Frequently Asked Questions

How many FEMA disaster declarations does Navajo County, AZ have?

Navajo County, AZ has 8 federal disaster declarations on FEMA record (1970–2021). The 5 most recent are: Severe Storms and Flooding (declared Sep 13, 2021, DR-4620); Hurricane Katrina Evacuation (declared Sep 12, 2005, DR-3241); Severe Storms, Tornadoes & Flooding (declared Jan 19, 1993, DR-977); Severe Storms & Flooding (declared Oct 5, 1983, DR-691); Severe Storms & Flooding (declared Feb 19, 1980, DR-614). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Navajo County, AZ?

Navajo County is graded A (composite score 12/100, low risk). It ranks #1017 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 Navajo County?

3 NFIP flood insurance claims have been filed in Navajo County, AZ, totaling $5,000 in payouts. The average claim is $1,667. Source: FEMA FimaNfipClaims v2 dataset.

Has Navajo County, AZ had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Navajo County was Severe Storms and Flooding on Sep 13, 2021 (DR-4620). The county has 8 declared disasters in the OpenFEMA record covering 1970–2021.

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.

Every number on this page links back to FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.

For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.

Source: FEMA OpenFEMA datasets, 2026.