Brown County, NE flood risk explained
Flood hazard in Brown County sits at the 2.3th national percentile, among the lowest flood hazard in the country; driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 4 years. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Mandatory flood insurance compliance in Brown County
FEMA hasn't published a residential structure count for Brown County's mapped flood zone, so a reliable mandatory-compliance percentage can't be computed here — see the data quality guide for why this gap exists for roughly a quarter of US counties. Looking beyond the mandated zone, 0% of all residential structures in Brown County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Brown County ranks
Among the 3144 US counties FEMA scores for flood hazard, Brown County ranks 3076 — 1 being the highest hazard nationally — and 2965 by population among all 3144 counties covered here, where 1 is the largest. Brown County, Nebraska covers 1,221.405 square miles and counts roughly 2,877 residents.
What to do next if you own or are buying in Brown County
0 of Brown County's 2,452 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
Where Brown County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Brown County's compliance figure is one of the ones affected by FEMA's incomplete denominator data — the data quality guide explains what that means and how many counties it touches.