Disaster Data / States / Idaho / Custer County

County

Custer County, Idaho

Custer County recorded 5 federal disaster and emergency declarations since FY2000 (through FY2025): 3 major disasters, 2 emergencies, and 0 fire-management declarations. Its most common hazard is biological.

Highlighted: Custer County, ID

Totals: FY2000–FY2025 · Page last rebuilt Sep 12, 2026 · the current in-progress fiscal year is not included in totals

5
Declarations since FY2000
3
Major disasters (DR)
2
Emergencies (EM)
0
Fire management (FM)
Apr 2020
Most recent
$893K
Federal PA obligated (top: roads and bridges)

The federal disaster record for Custer County runs between 2000 and 2020, covering 5 declarations in all. Its most recent major disaster declaration was Covid-19 Pandemic in 2020. The hazards behind these declarations were most often biological, fire, and flood. Since 2000, FEMA has obligated $892,598 in Public Assistance funding to the jurisdiction, most of it for roads and bridges.

Risk and vulnerability context

Historical declarations show what has happened here. These national datasets add context about underlying natural-hazard risk and community vulnerability.

County FIPS 16037
CDC / ATSDR

Social Vulnerability Index

2022 county-level SVI
37.1
overall percentile nationally

Approximately 37.1% of U.S. counties have an equal or lower overall SVI ranking.

Socioeconomic status45.6
Household characteristics43.4
Racial and ethnic minority status31.7
Housing type and transportation30.2

Higher percentiles indicate greater relative social vulnerability within the CDC SVI framework. CDC SVI documentation

FEMA

National Risk Index

December 2025
52.4
overall risk score
Relatively Low
Expected annual loss$10.6MVery Low
NRI social vulnerability91.6Very High
Community resilience10.0Very Low

The NRI combines expected annual loss, social vulnerability, and community resilience to describe relative natural-hazard risk. FEMA NRI documentation

About these measures: CDC Social Vulnerability Index and FEMA National Risk Index Social Vulnerability are separate measures built with different methods. They are shown side by side for context and should not be interpreted as equivalent scores.

Federal Public Assistance by category

Federal share obligated to this jurisdiction under FEMA Public Assistance since 2000, grouped by damage category. Figures are rounded to the nearest dollar and reflect obligations, which may change as projects close out.

CategoryProjectsFederal share obligated
Roads and bridges(C)8$738,064
Water control facilities(D)1$52,016
Utilities(F)2$48,985
Management costs(Z)4$33,991
Emergency protective measures(B)1$16,976
Debris removal(A)1$2,565
All categories17$892,597

Recovery funding, how fast it came

For each disaster, the wait from the declaration to the first federal obligation (amber), then the federal share obligating after that (teal), on a shared 9-year scale. Typical wait to the first obligation here: about 192 days. An obligation is the federal share committed to the recipient state, not funds disbursed to the locality, which comes later and is not shown.

Flooding, Landslides, And Mudslides 2017$893K
192 days to first federal obligation
Declared1 yr2 yr3 yr4 yr5 yr6 yr7 yr8 yr9 yr

Hazard mitigation, what has been funded here

Federal Hazard Mitigation Assistance obligated to this jurisdiction to reduce future disaster losses, across the FEMA mitigation programs. This is the record of past mitigation investment a local hazard mitigation plan documents. Figures are federal share obligated, reported through OpenFEMA and not audited, and are separate from the Public Assistance funding above.

$917,344
federal mitigation share
3
funded projects
ProgramProjectsFederal share obligated
Legislative Pre-Disaster Mitigation(LPDM)2$800,177
Hazard Mitigation Grant Program(HMGP)1$117,167

Most common hazards

Previous occurrences, for your mitigation plan

Every local hazard mitigation plan must document previous occurrences of each hazard. Here is that record for Custer County, sourced to OpenFEMA and refreshed weekly. Copy it straight into your plan.

HazardDateFEMA declarationType
BiologicalApr 9, 2020DR-4534-IDDR
BiologicalMar 13, 2020EM-3467-IDEM
FloodAug 27, 2017DR-4333-IDDR
HurricaneSep 13, 2005EM-3244-IDEM
FireSep 1, 2000DR-1341-IDDR

Every declaration on record

DR = Major disaster (Stafford Act) · EM = Emergency declaration · FM = Fire management assistance

Showing 5 declarations

DateNumberTypeHazardTitle
Apr 9, 2020DR-4534-IDDRBiologicalCovid-19 Pandemic
Mar 13, 2020EM-3467-IDEMBiologicalCovid-19
Aug 27, 2017DR-4333-IDDRFloodFlooding, Landslides, And Mudslides
Sep 13, 2005EM-3244-IDEMHurricaneHurricane Katrina
Sep 1, 2000DR-1341-IDDRFireWildfires
← Idaho statewide overview · All Idaho jurisdictions

How these numbers are built

Drawn from FEMA's OpenFEMA Disaster Declarations Summaries, rebuilt each week. A declaration is counted here once for each designated area it names, so a single disaster covering many localities is counted in each one. For that reason these jurisdiction counts do not sum to Idaho's statewide total. This page counts declarations that named this jurisdiction as a designated area. Totals cover complete fiscal years (Oct 1 to Sep 30); the in-progress year may appear in the most-recent list but is not counted in the totals. Uses OpenFEMA data but is not endorsed by or affiliated with FEMA.

Cite this profile

Choose a citation style, then copy the formatted citation. This profile is derived from FEMA OpenFEMA data and is updated as the underlying Disaster Data build is refreshed.

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