Severe Weather History


New Jersey Flood History: 1,053 Recorded Events

1,052

Recorded events

21

Counties affected

11

Direct deaths

$1.1B

Property damage

New Jersey flood history: 1,052 recorded events across 21 counties between 1996 and 2025.

Decade by decade

New Jersey flood history by decade

New Jersey flood history: recorded events per decade
New Jersey flood history: recorded events per decade

The 2010s are the busiest decade on record with 490 reported flood events across New Jersey. Earlier decades are thinner because systematic reporting for this hazard expanded over time, not because the weather was calmer.

County ranking

Counties with the most flood events in New Jersey

RankCountyEventsDeathsDamageSpan
#1Bergen County1071$52.4M1996–2022
#2Somerset County880$266.0M2002–2025
#3Morris County591$255.5M1998–2024
#4Union County450$2.7M1996–2019
#5Hunterdon County411$63.0M1998–2023
#6Camden County380$13.5M2001–2023
#7Burlington County370$59.0M2006–2018
#8Passaic County350$5.2M1996–2017
#9Middlesex County321$51.1M1998–2023
#10Mercer County312$91.0M1998–2018
#11Monmouth County310$11.5M1998–2025
#12Cape May County280$5.0M1997–2020
#13Essex County281$4.0M1996–2016
#14Ocean County260$11.0M1997–2018
#15Cumberland County250$27.0M2002–2025
#16Gloucester County241$13.0M2001–2018
#17Atlantic County230$31.0M1997–2023
#18Hudson County221$2.7M1996–2019
#19Warren County180$33.2M2006–2017
#20Salem County171$17.0M2007–2015
#21Sussex County160$15.1M1998–2016
Source: NOAA/NCEI Storm Events · ranked by recorded event count

Significant events

Deadliest flood events in New Jersey

DateCountyScaleDeathsInjuries
Aug 28, 2011Mercer County—20
Apr 15, 2007Middlesex County—10
Aug 28, 2011Morris County—10
Aug 28, 2011Salem County—10
Apr 15, 2007Bergen County—10
Apr 15, 2007Essex County—10
Aug 14, 2011Gloucester County—10
Aug 28, 2011Hudson County—10
Jun 28, 2006Hunterdon County—10
Source: NOAA/NCEI Storm Events · dates UTC

All hazards in New Jersey · Flood across the U.S.