Putnam County, TN: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Putnam County scores at the 60.2th percentile for flood hazard, rated "Relatively Low" — below the national norm for flood hazard. The hazard here is driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 2.1 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Mandatory flood insurance compliance in Putnam County
13.8% of the homes FEMA requires to carry flood insurance in Putnam County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 16 policies against 116 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Looking beyond the mandated zone, 0.2% of all residential structures in Putnam County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
How Putnam County compares nationally
Among the 3144 US counties FEMA scores for flood hazard, Putnam County ranks 1308 — 1 being the highest hazard nationally — and 690 by population among all 3144 counties covered here, where 1 is the largest. About 84,894 people live in Putnam County, Tennessee, spread over 401.106 square miles.
What to do next if you own or are buying in Putnam County
Across all of Putnam County's 29,214 residential structures, 62 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where Putnam County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. If you're unsure why any of this insurance requirement exists at all, the SFHA explainer covers it from first principles.