4 flood insurance claims·$36,477 paid·5 federal flood & hurricane disasters
Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.
Shaded areas are FEMA’s mapped flood hazard zones in and around Louisa County, Virginia. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.
Flash flooding from summer thunderstorms dominates the flood risk in Louisa County, which recorded 15 flash flood events compared to 7 general flood events over the last 30 years according to the NOAA Storm Events Database.
Recent activity illustrates this pattern. On July 1, training storms with very high rain rates produced by an upper-level trough and cold front led to nuisance flash flooding. Later in the summer, on August 29, scattered thunderstorms that developed and trained along a stationary front produced heavy rain, slow storm motions, cell mergers, and resulting flash flooding.
National Flood Insurance Program claims data indicates that properties in high-risk Zone A require the most attention, registering an average payout of $33,351 with an average recorded water depth of 38 inches. Properties in moderate-to-low risk Zone X also recorded claims, averaging $3,127 with an average recorded water depth of 0 inches.
Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.
In flood insurance claims here that reported a flood depth, the average was 38 inches.
Drawn to scale against an 80-inch door. Even a few inches soaks flooring, the bottom of the drywall and anything plugged in near the floor.
Average of the depths reported on claims (zero and implausible values left out); FEMA’s record doesn’t say exactly where each depth was measured. Source: OpenFEMA NFIP claims.
The worst year was 1992, with 1 claims and $33,351 paid.
Bar height is scaled by square root so ordinary years stay visible next to the worst one. NFIP claims by year of loss. Source: OpenFEMA.
5 NOAA storm reports from Louisa County describe what happened, in the words of the forecasters who covered it. Read the Virginia flood stories →
25 federal disaster declarations since 1969, 5 of them floods, coastal storms or hurricanes.
| Disaster | Began |
|---|---|
| Severe Winter Storm | Jan 22, 2026 |
| Severe Winter Storm And Snowstorm | Jan 2, 2022 |
| Severe Winter Storms | Feb 11, 2021 |
| Hurricane Florence | Sep 13, 2018 |
| Severe Winter Storm And Snowstorm | Jan 22, 2016 |
| Hurricane Sandy | Oct 26, 2012 |
| Severe Storms And Straight-line Winds | Jun 29, 2012 |
| Hurricane Irene | Aug 26, 2011 |
Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.
22 since 1996: 15 flash floods and 7 river or area floods.
| Event | Date | Damage |
|---|---|---|
| Flash Flood | Jul 9, 2025 | — |
| Flash Flood | Jul 1, 2025 | — |
| Flash Flood | Aug 29, 2024 | — |
| Flash Flood | Jul 15, 2023 | — |
| Flood | Nov 12, 2020 | — |
| Flash Flood | Nov 11, 2020 | — |
| Flood | Jul 31, 2018 | — |
| Flood | Jun 22, 2018 | — |
— = no damage estimate in the record. Source: NOAA Storm Events Database.
Flash Flood · Jul 9, 2025. A short wave trough aloft approached the Mid-Atlantic from the west on July 9. Strong thunderstorms formed during the afternoon and evening with gusty winds and heavy rainfall.
Flash Flood · Jul 1, 2025. An upper-level trough and cold front progressed from the Great Lakes region into the Mid-Atlantic on July 1. Numerous thunderstorms moved into central Virginia in the afternoon and evening hours. With training storms and very high rain rates, heavy rain led to nuisance flash flooding in some areas.
Flash Flood · Aug 29, 2024. Scattered thunderstorms developed and trained along a stationary front draped across central Virginia on the night of August 29. These storms produced heavy rain and flash flooding given slow storm motions and cell mergers. Damaging wind gusts also occurred with the strongest storms.
Flash Flood · Jul 15, 2023. Scattered thunderstorms associated with a surface trough of low pressure produced heavy rain which caused flash flooding across portions of central Virginia.
National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.
Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.
If a building in Louisa County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.
Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.