Is Crosby County, TX in a flood zone?
FEMA's National Risk Index puts Crosby County's flood hazard at the 5.5th percentile nationally — 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 2 years. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Who actually carries the flood insurance FEMA requires
Crosby County is one of the counties where FEMA's own denominator for mandated flood-zone structures is missing, so no compliance rate is shown rather than a guessed one — the data quality guide covers how common this is. Across all residential structures in Crosby County, not just the ones FEMA mandates, 0.3% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Crosby County compares nationally
Crosby County sits at rank 2978 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2817 of 3144 by population (1 is biggest). Crosby County, Texas covers 900.199 square miles and counts roughly 5,030 residents.
Checking a specific address in Crosby County
7 of Crosby County's 2,561 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Crosby County's numbers. See the data quality guide for why Crosby County, like hundreds of other counties, doesn't get a clean compliance percentage.