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A

Sierra, NM

Flood Risk Score: 10/100 · Rank #2134 of 3,277 counties

Sierra County in New Mexico has 4 FEMA disaster declarations on record covering 1972–2013, most recently Severe Storms, Flooding, and Mudslides on Oct 29, 2013 (DR-4152). Its flood risk grade is A (Low risk), ranking #2134 of 3,277 U.S. counties, with 0 NFIP flood insurance claims totaling $0 in payouts. Flood risk is relatively low compared to the national average.

10
Risk Score
0
NFIP Claims
$0
Total Payouts
4
Disasters
$0
Avg Claim
0
Active Policies

FEMA Disaster Declarations in Sierra County

The 4 most recent federally declared disasters affecting Sierra County, NM (1972–2013). Total declarations on record: 4.

DeclaredIncident TypeTitleFEMA Disaster #
Oct 29, 2013FloodSevere Storms, Flooding, and MudslidesDR-4152
Sep 7, 2005HurricaneHurricane Katrina EvacuationDR-3229
Jan 29, 1979FloodFloodingDR-571
Sep 20, 1972FloodHeavy Rains & FloodingDR-353

Score Breakdown

The composite score of 10 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
9
Claim Severity
20%
0
Year-over-Year Trend
15%
50

Other Counties in New Mexico

CountyGradeScoreClaimsDisasters
ChavesA10184
CibolaA1004
ColfaxA1004
Dona AnaA1034
Los AlamosA1004
OteroA1045
View All Counties in New Mexico

Frequently Asked Questions

How many FEMA disaster declarations does Sierra County, NM have?

Sierra County, NM has 4 federal disaster declarations on FEMA record (1972–2013). The 4 most recent are: Severe Storms, Flooding, and Mudslides (declared Oct 29, 2013, DR-4152); Hurricane Katrina Evacuation (declared Sep 7, 2005, DR-3229); Flooding (declared Jan 29, 1979, DR-571); Heavy Rains & Flooding (declared Sep 20, 1972, DR-353). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Sierra County, NM?

Sierra County is graded A (composite score 10/100, low risk). It ranks #2134 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 Sierra County?

0 NFIP flood insurance claims have been filed in Sierra County, NM, totaling $0 in payouts. The average claim is $0. Source: FEMA FimaNfipClaims v2 dataset.

Has Sierra County, NM had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Sierra County was Severe Storms, Flooding, and Mudslides on Oct 29, 2013 (DR-4152). The county has 4 declared disasters in the OpenFEMA record covering 1972–2013.

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.