Which county in Florida has the lowest flood risk?

Union has the lowest flood risk in Florida, at 29.3.

What is the flood risk in Union?

Union is ranked #1 in Florida for flood risk, at 29.3.

What are the top counties in Florida for flood risk?

Union (29.3), then Hardee (34.6), and Hamilton (36.5). The full top 25 is in the table on this page.

How is this flood risk ranking calculated?

Counties in Florida 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 Florida compare to the rest of the US for flood risk?

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

Lowest Flood Risk Counties in Florida (2026)

Lowest counties for flood risk in Florida

Top 25 of 67 counties with data.

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

Lowest counties for flood risk in Florida

Rank	County	Value
01	Union29.3 County page
02	Hardee34.6 County page
03	Hamilton36.5 County page
04	Polk37.3 County page
05	Highlands39.2 County page
06	Holmes41.8 County page
07	Leon49.0 County page
08	Marion49.5 County page
09	Alachua50.8 County page
10	Palm Beach51.4 County page
11	Bradford52.1 County page
12	Liberty53.2 County page
13	Jefferson54.0 County page
14	Levy54.1 County page
15	Madison54.4 County page
16	Jackson55.4 County page
17	Washington55.6 County page
18	Orange56.1 County page
19	Seminole56.7 County page
20	DeSoto56.8 County page
21	Lake57.4 County page
22	Gilchrist57.7 County page
23	Lafayette57.7 County page
24	Citrus60.4 County page
25	Gadsden61.0 County page

How this ranking works

This page ranks Florida 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 Florida has the lowest flood risk?: Union has the lowest flood risk in Florida, at 29.3.
What is the flood risk in Union?: Union is ranked #1 in Florida for flood risk, at 29.3.
What are the top counties in Florida for flood risk?: Union (29.3), then Hardee (34.6), and Hamilton (36.5). The full top 25 is in the table on this page.
How is this flood risk ranking calculated?: Counties in Florida 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 Florida compare to the rest of the US for flood risk?: This list is Florida only. See the national ranking of the lowest counties for flood risk at hearthmap.app/best/lowest-flood-risk.