Petersburg city, VA flood risk explained
Flood hazard in Petersburg city sits at the 36.2th national percentile, among the lowest flood hazard in the country; split between inland river flooding (about once every 2 years) and coastal storm surge (about 3.7 times a year). That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Mandatory flood insurance compliance in Petersburg city
FEMA hasn't published a residential structure count for Petersburg city'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, 0.9% of all residential structures in Petersburg city carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Petersburg city against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Petersburg city ranks 2068 — 1 being the highest hazard nationally — and 1337 by population among all 3144 counties covered here, where 1 is the largest. About 34,058 people live in Petersburg city, Virginia, spread over 22.72 square miles.
Your street may differ from Petersburg city's average
FEMA counts 11,497 residential structures in Petersburg city overall, 100 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
Where Petersburg city's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Petersburg city'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.