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Mercer County, New Jersey

County-level FEMA declaration history, assistance rollups, and flood insurance context for Mercer County.

Total declarations
28
1965 to 2021
Tracked FEMA aid
$1.8B
PA + assistance signals
Most common type
Hurricane
10,564 registrations tracked
Most recent event
DR-4614
Sep 5, 2021
Cross-link

Need the flood-zone side of the story?

The same county on FloodZoneMap.org covers flood-zone context, map interpretation, and related flood insurance questions that sit adjacent to this disaster-history page.

Open FloodZoneMap.org
Federal spending

Public + individual assistance structure

Public assistance totals come from FEMA project-level obligations. Individual assistance totals prioritize the validated or intake totals without double counting both sources together.

Public assistance

Infrastructure repair, debris removal, emergency measures, and related project obligations.

Emergency Protective Measures$1.2B
Management Costs$157.7M
Debris Removal$150.8M
Section 324 Management Costs$71.5M
Water Control Facilities$55.6M
Parks, Recreational Facilities, and Other Items$48.5M
Buildings and Equipment$35.6M
Roads and Bridges$7.1M
Total PA obligated$1.8B

Individual assistance

Registrations, housing assistance, and other-needs dollars surfaced through the FEMA assistance datasets.

Tracked registrations10,564
IHP / household aid$14.8M
Housing assistance$9.6M
Other needs assistance$5.3M
NFIP claims paid$0
Timeline

Every declaration on record for this county

Ordered newest to oldest so recent search intent is handled first, without losing the long historical tail.

BiologicalMar 2020Mercer County

COVID-19 PANDEMIC

DR-4488-NJ · Jan 20, 2020 to May 11, 2023
$1.2BPA obligated
659Registrations
$3.7MHousehold aid
PA, HMPrograms
BiologicalMar 2020Mercer County

COVID-19

EM-3451-NJ · Jan 20, 2020 to May 11, 2023
$0PA obligated
0Registrations
$0Household aid
PAPrograms
HurricaneOct 2012Mercer County

HURRICANE SANDY

DR-4086-NJ · Oct 26, 2012 to Nov 8, 2012
$390.6MPA obligated
2,851Registrations
$515KHousehold aid
PA, HMPrograms
HurricaneAug 2011Mercer County

HURRICANE IRENE

DR-4021-NJ · Aug 27, 2011 to Sep 5, 2011
$16.0MPA obligated
3,239Registrations
$5.1MHousehold aid
PA, HMPrograms
WinterMar 2003Mercer County

SNOW

EM-3181-NJ · Feb 16, 2003 to Feb 17, 2003
$11.2MPA obligated
0Registrations
$0Household aid
PAPrograms
About this county

Disaster history context for Mercer County

Mercer County, New Jersey has 28 FEMA disaster declarations on record, spanning from 1965 to 2021. The dominant hazard type is hurricane, followed by severe storm. That is close to the New Jersey average of 30 declarations per county. Total tracked FEMA obligations for this county exceed $1.8B, split between public infrastructure repair and individual household assistance.

Public assistance covers debris removal, emergency protective measures, and infrastructure repair managed through FEMA project obligations. Individual assistance includes housing aid, other-needs grants, and validated registrations reported through the IHP datasets. These figures reflect what FEMA's open datasets report — actual disbursements to individuals and local agencies may differ from the obligation totals shown here.