Christ Church · Photo: Pubdog · Public domainStorms, floods and disasters in St. Leonard
St. Leonard isn’t graded for hazard risk: St. Leonard has 726 residents; we grade towns of 1,000 or more.
What St. Leonard faces
Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.
Hurricanes
River and rain flooding
Coastal flooding
Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.
Does St. Leonard flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in St. Leonard. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
St. Leonard isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Calvert County.1 federal disaster brought FEMA money to St. Leonard
Disasters that paid out in St. Leonard itself (aid to households or repair grants to St. Leonard), newest first, with that year’s flood claims.
- 2003Hurricane Isabel41 households applied for aid$54K aid approved
Calvert County has had 19 natural disasters declared by the President since 1953, most often winter storms, then hurricanes and tropical storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Old photos of St. Leonard after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the St. Leonard archive →St. Leonard and its neighbors
How expected damage per building compares across the town line. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Calvert Beach | Aless damage than 94% | hurricanes | — |
| Long Beach | Aless damage than 94% | hurricanes | 16 |
Hazard risk = FEMA’s expected yearly building damage per dollar of building value, vs. the 21,298 U.S. towns we grade; the map is shaded by fifths of the same scale. Flood claims = paid federal flood insurance claims on record.
Get ready for what St. Leonard faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- The season runs June through November and peaks from mid-August to mid-October.
- Bring in porch furniture and anything the wind can throw.
- Fill the gas tank and charge phones before the storm arrives.
- Turn around at flooded roads: a foot of moving water can carry off a car.
- Flood insurance usually takes 30 days to start, so buy it before the forecast.
- Keep papers and medicines up high, in a grab-and-go bag.
- Know your evacuation zone and the way off the coast.
- Storm surge comes fast: leave when you’re told, not when the water arrives.
- Move cars to high ground before king tides and nor’easters.
- Look up the address on FEMA’s flood map.
- Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
- Get a flood insurance quote early: policies usually start 30 days after you buy.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in St. Leonard
Is St. Leonard in a flood zone?
Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Calvert County, 63% of homes in mapped flood zones carry federal flood insurance, and 2.0% of all homes do.
How much is flood insurance in St. Leonard?
FEMA’s Community Rating System list shows no discount for St. Leonard’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
What was the biggest storm in St. Leonard?
By FEMA money that reached St. Leonard, Hurricane Isabel (2003): 41 households applied for aid, $54K approved.
Storm stories
Memories, warnings and help from neighbors in St. Leonard.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where St. Leonard’s residents lived in the 2020 census; OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.