Which county in Indiana has the lowest flood risk?

St. Joseph has the lowest flood risk in Indiana, at 27.1.

What is the flood risk in St. Joseph?

St. Joseph is ranked #1 in Indiana for flood risk, at 27.1.

What are the top counties in Indiana for flood risk?

St. Joseph (27.1), then Sullivan (30.2), and Benton (35.2). The full top 25 is in the table on this page.

How is this flood risk ranking calculated?

Counties in Indiana are ranked by flood risk (FEMA National Risk Index, FEMA NRI v1.20), lowest first. Values describe the county, not an individual property. Source vintage is shown on the page.

How does Indiana compare to the rest of the US for flood risk?

This list is Indiana only. See the national ranking of the lowest counties for flood risk at hearthmap.app/best/lowest-flood-risk.

Lowest Flood Risk Counties in Indiana (2026)

Lowest counties for flood risk in Indiana

Top 25 of 92 counties with data.

Ranked by flood risk (FEMA National Risk Index, FEMA NRI v1.20), lowest first.

Lowest counties for flood risk in Indiana

Rank	County	Value
01	St. Joseph27.1 County page
02	Sullivan30.2 County page
03	Benton35.2 County page
04	Tippecanoe39.1 County page
05	Fulton40.2 County page
06	Howard41.9 County page
07	Starke42.4 County page
08	Elkhart44.4 County page
09	Kosciusko44.8 County page
10	Marshall46.0 County page
11	Steuben46.1 County page
12	Clinton46.2 County page
13	Whitley48.0 County page
14	Blackford48.1 County page
15	Porter48.8 County page
16	Gibson48.8 County page
17	Pulaski49.5 County page
18	Allen49.6 County page
19	Madison49.8 County page
20	Marion50.1 County page
21	Fountain50.6 County page
22	LaPorte50.9 County page
23	Tipton51.3 County page
24	Lawrence52.4 County page
25	Montgomery53.2 County page

How this ranking works

This page ranks Indiana counties by flood risk, sorted so the lowest places appear first. Click any county to see its housing, schools, crime, and demographics in detail.

For flood risk, a lower value is generally more favorable, so the top of the list is the lowest. Want to weigh flood risk against schools, taxes, commute, and more at once? Use the live map to build a custom match.

Data comes from public sources. Source attribution and the exact data vintage are shown above and on the full map of flood risk.

Frequently asked questions

Which county in Indiana has the lowest flood risk?: St. Joseph has the lowest flood risk in Indiana, at 27.1.
What is the flood risk in St. Joseph?: St. Joseph is ranked #1 in Indiana for flood risk, at 27.1.
What are the top counties in Indiana for flood risk?: St. Joseph (27.1), then Sullivan (30.2), and Benton (35.2). The full top 25 is in the table on this page.
How is this flood risk ranking calculated?: Counties in Indiana are ranked by flood risk (FEMA National Risk Index, FEMA NRI v1.20), lowest first. Values describe the county, not an individual property. Source vintage is shown on the page.
How does Indiana compare to the rest of the US for flood risk?: This list is Indiana only. See the national ranking of the lowest counties for flood risk at hearthmap.app/best/lowest-flood-risk.