Address lookup

Johnson 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

$2,051

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

Policies in force, including condo units
599
Cumulative recorded losses
448
Net dollars paid
$31,682,003

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 Johnson County.

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

What these records tell you

Johnson County’s 599 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 Iowa counties

Largest recorded loss years

Published net claim payments from 1978 through 2025, 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.

2008$27,165,0751993$3,631,5662013$247,7602018$118,6332016$105,943
All published years and net payments
Johnson County claims history
Year of lossNet payments
1978$33,129
1980$1,975
1981$391
1982$4,359
1983$0
1986$0
1990$82,790
1991$39,446
1993$3,631,566
1994$0
1996$13,195
1998$11,494
2002$20,122
2006$0
2007$57,708
2008$27,165,075
2009$13,822
2010$63,581
2012$5,173
2013$247,760
2014$56,163
2015$4,592
2016$105,943
2018$118,633
2025$0

446 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