Trinity County, TX: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Trinity County scores at the 40.3th 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 once every 1 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 Trinity County
FEMA hasn't published a residential structure count for Trinity 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, 0.5% of all residential structures in Trinity County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Trinity County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Trinity County ranks 1940 — 1 being the highest hazard nationally — and 2122 by population among all 3144 counties covered here, where 1 is the largest. Trinity County, Texas covers 693.857 square miles and counts roughly 14,489 residents.
What to do next if you own or are buying in Trinity County
FEMA counts 7,676 residential structures in Trinity County overall, 40 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
Where Trinity County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Trinity 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.