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San Joaquin County flood insurance

Published NFIP policy and loss records, alongside a way to check the map.

Average annual premium and federal policy fee per policy unit

$940

As of 2026-08-31. A portfolio average, not a quote for a home.

Policies in force, including condo units
4,336
Cumulative recorded losses
409
Net dollars paid
$8,319,279

Cumulative losses in the HUDEX report through August 31, 2026. Loss counts include claims closed without payment. No annual series or first loss year is stated in this report.

Find a flood zone in San Joaquin County.

U.S. addresses only. Include a ZIP for a more precise match.

What these records tell you

San Joaquin County’s 4,336 policy units describe the published NFIP book of business. The average combines different buildings, limits and deductibles. Private flood insurance is outside this dataset.

Historic net payments measure reported insured losses; they do not measure all economic damage or a home’s probability of flooding. The separate OpenFEMA release below provides a year-of-loss breakdown.

Nearby county records

These counties are closest by Census internal point; this list does not assert shared borders.

All California counties

Largest recorded loss years

Published net claim payments from 1978 through 2026, grouped by year of loss. Dollar amounts are nominal. The 2026-09-08 OpenFEMA claims release is a separate population from the policy workbook above.

1997$2,570,5782023$1,527,2972022$947,4241996$743,2592004$577,386
All published years and net payments
San Joaquin County claims history
Year of lossNet payments
1978$837
1980$6,055
1982$4,074
1983$210,205
1984$5,868
1986$534,490
1988$0
1989$0
1991$30,337
1992$4,114
1993$4,692
1994$0
1995$62,781
1996$743,259
1997$2,570,578
1998$334,654
1999$0
2000$8,745
2002$747
2003$69,071
2004$577,386
2005$26,900
2006$37,586
2007$7,665
2008$3,982
2010$1,760
2011$0
2012$41,586
2014$730
2016$27,858
2017$209,640
2019$103,765
2021$1,118
2022$947,424
2023$1,527,297
2024$0
2025$0
2026$4,142

421 published claim records in this county series. Records without payment are included in counts. Missing county records are retained in national controls and are not allocated to counties. OpenFEMA NFIP redacted claims V3.

Data and methodology

Complete official HUDEX report, summed across its community rows within each geocoded county FIPS. Policy Count includes condominium units under master policies. Average premium is Total Premium + Federal Policy Fee divided by Policy Count; this is an aggregate per policy unit, not a property quote. Loss counts include losses closed without payment. Total Net Dollars Paid is cumulative in this report, including the source's adjustments. The report does not specify the first loss year or split losses by year, so a starting year and annual breakdown are not inferred. Unassigned county records are retained in state totals separately. No record sampling.

Official NFIP policy and loss geography workbook

Read the full methodology and coverage limits