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Updated May 2026

Flood Risk in Indiana

Indiana carries a relatively low statewide average risk score of 10, with 100% of its 93 counties at A or B. 0 counties are in the F (extreme) tier, typically along major rivers or flood-prone basins. Statewide NFIP take-up is modest at 393 total claims.

93
Counties
393
NFIP Claims
$10,637,903
Total Payouts
10
Avg Risk Score

Grade Distribution Across Indiana

The grade mix is dominated by A — 100% of counties — meaning the typical place in this state has very low historical flood loss. The handful of B/C/D/F counties below define where risk is concentrated.

A
93
counties
B
0
counties
C
0
counties
D
0
counties
F
0
counties

How Indiana Compares Nationally

The U.S. county-level average composite score is 12. Indiana sits at 10, which is right around the national average. 325 federal flood-related disaster declarations across 93 counties — averaging 3.5 per county, well above the U.S. norm. The state experiences large-loss flood events on a recurring basis.

For full national context — every state ranked by average score and total claims — see the all-states overview. The riskiest-counties ranking and highest-payouts ranking drill into where loss is concentrated. Real-time stream-gauge readings are at USGS Water Data.

Riskiest in Indiana

CountyGradeScore
JeffersonA19
HarrisonA18
BartholomewA17
ElkhartA17
LakeA17

Safest in Indiana

CountyGradeScore
MarionA3
MonroeA7
CassA8
JohnsonA8
KosciuskoA8

How Indiana's Risk Is Calculated

Every county in Indiana is scored on the same four factors that drive every county nationwide: NFIP claims density (40%), federally declared flood-disaster frequency (25%), average claim severity (20%), and year-over-year trend (15%). Source data comes from the public FEMA flood-mapping program and OpenFEMA endpoints. Detailed weighting math, plus the data's known limitations (county-level granularity, NFIP-participation bias, historical bias), is on the methodology page.

All 93 Counties in Indiana

Sorted by flood risk score, highest to lowest.

#CountyGradeScoreClaimsPayoutsDisasters
1JeffersonA1915$585,1297
2HarrisonA1816$1,955,9516
3BartholomewA178$262,6634
4ElkhartA1722$257,0493
5LakeA1716$120,8074
6CarrollA1514$344,7263
7FloydA146$193,0835
8PorterA136$49,8273
9ClarkA1137$1,228,6856
10PerryA114$86,9566
11SwitzerlandA113$177,5656
12VanderburghA1112$213,9454
13GibsonA110$06
14BrownA104$36,2095
15CrawfordA104$302,3475
16DecaturA102$216,1984
17FranklinA101$05
18GreeneA101$05
19LawrenceA100$05
20MadisonA104$176,8764
21MarshallA102$65,7255
22MartinA100$04
23MontgomeryA101$04
24MorganA103$48,9624
25OrangeA101$7,0174
26OwenA102$37,3294
27WarrickA101$05
28WashingtonA100$04
29WarrenA100$04
30ClayA103$81,6454
31AllenA108$50,7684
32DaviessA100$05
33DearbornA101$11,6095
34FayetteA102$3,8054
35JacksonA101$11,7504
36JenningsA100$04
37KnoxA101$04
38LaPorteA102$30,4064
39OhioA100$04
40PikeA100$04
41PoseyA102$20,0024
42ScottA100$04
43SpencerA100$05
44StarkeA105$100,7394
45SullivanA100$04
46VermillionA100$04
47VigoA105$64,5684
48AdamsA93$12,2733
49BentonA90$03
50BlackfordA90$03
51BooneA92$59,7153
52ClintonA90$03
53DeKalbA90$03
54DelawareA95$125,0893
55DuboisA92$111,2223
56FountainA90$02
57FultonA91$19,4843
58GrantA91$02
59HamiltonA93$5,0823
60HancockA92$14,1123
61HendricksA93$48,1882
62HenryA91$03
63HowardA95$143,2152
64HuntingtonA97$55,5472
65JasperA95$192,0323
66JayA92$115,0063
67MiamiA90$02
68NewtonA93$7,6793
69NobleA96$67,6362
70ParkeA91$87,6133
71PulaskiA92$78,9343
72PutnamA90$02
73RandolphA90$03
74RipleyA92$42,9172
75RushA91$8,0083
76St. JosephA911$242,4903
77ShelbyA99$173,0043
78SteubenA91$02
79TippecanoeA92$4,8512
80TiptonA90$03
81UnionA90$02
82WabashA91$6952
83WayneA93$7,1052
84WellsA92$77,0722
85WhiteA913$169,3652
86StatewideA90$03
87CassA81$01
88JohnsonA812$161,3403
89KosciuskoA87$23,7323
90LaGrangeA84$123,2971
91WhitleyA80$01
92MonroeA711$1,386,8403
93MarionA344$332,0193

Frequently Asked Questions

What is the average flood risk score in Indiana?

Indiana's average composite flood risk score is 10 on a 0–100 scale, computed as the mean of all 93 county scores. That is roughly equal to the U.S. county-level average of 12. Score components: 40% claims density, 25% disaster frequency, 20% claim severity, 15% trend.

Which counties in Indiana have the highest flood risk?

The riskiest county in Indiana is Jefferson with a composite score of 19 (grade A). The next four — Harrison, Bartholomew, Elkhart, Lake — round out the top-five most exposed places in the state.

How many NFIP flood-insurance claims has Indiana filed?

FEMA's National Flood Insurance Program shows 393 claims on file from Indiana, with combined payouts of $10,637,903 across the dataset. 68 of the state's 93 counties have at least one NFIP claim recorded.

Are FEMA flood maps the same as your risk score?

No. The flood risk score on this page is a county-wide composite drawn from claims, disasters, severity, and trend. FEMA Flood Insurance Rate Maps (FIRMs, available at fema.gov/flood-maps) are parcel-level zone designations based on hydrologic modeling. The two answer different questions; serious decisions about insurance or building should use both, plus real-time hydrology from USGS Water Data.

When was the Indiana data last updated?

These figures were refreshed from the OpenFEMA API on 2026-05-16. FEMA itself publishes new NFIP claims on a quarterly cycle, so the data may lag actual events by up to three months.

Flood risk profile for Indiana: 93 counties, 393 NFIP claims, average composite score 10.

The this entity record above pulls directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. What follows is the per-entity context — how this entity sits in the broader U.S. flood risk, NFIP claims, and disaster declarations distribution and which underlying factors drive the headline numbers.

Every number on this page links back to FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.

For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.