Howard County, Maryland
Natural disaster risk, federal disaster history and flood insurance facts.
Howard County, Maryland has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 72% of US counties. It ranks 8th of 24 counties in Maryland. The costliest hazards here are inland flooding, heat waves and hurricanes. FEMA estimates about $52 million a year in expected losses, or roughly $156 per resident. Since 1971 it has been included in 20 federal disaster or emergency declarations for natural events (14 major disasters). The most recent was in January 2026 (severe winter storm). Fewer than 1 in 100 homes here carry federal flood insurance (816 policies). Since 1978, federal flood insurance has paid about $16 million on 422 claims here, including $8.0 million for floods in 2018.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Howard County
- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
- Check that cooling works before summer.
- Know where the nearest cooling center is.
- Know your evacuation zone and route before June 1.
- Ask about roof age, shutters and the separate wind or hurricane deductible on your home policy.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 78.1 | $30M | ||
| Heat wave | 89.3 | $5M | ||
| Hurricane | 81.2 | $4M | ||
| Strong wind | 89.0 | $3M | ||
| Earthquake | 77.5 | $2M | ||
| Cold wave | 53.2 | $2M | ||
| Tornado | 42.2 | $2M | ||
| Lightning | 84.1 | $1M | ||
| Drought | 75.0 | $1M | ||
| Hail | 71.9 | $1M | ||
| Winter weather | 92.7 | $845K | ||
| Ice storm | 59.2 | $217K | ||
| Wildfire | 15.6 | $9K | ||
| Landslide | 52.1 | $3K | ||
| Coastal flooding | 20.4 | $632 |
Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is very low and community resilience is very high in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Howard County. 2020s bar runs to November 2026.
By type
Most recent
Show all 20
Maryland also had 1 statewide declarations that did not name single counties.
Storm history since 1969
Tornado risk by county ›The National Weather Service has logged 624 storm reports in Howard County since 1969, with 4 deaths and 7 injuries and about $44.9 million in reported damage. The strongest on record here was an F2 tornado on September 24, 2001 near North Laurel.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Sep 24, 2001 | F2 | North Laurel | 0 / 0 |
| Jul 31, 1978 | F2 | – | 0 / 0 |
| Aug 28, 1992 | F1 | – | 2 / 0 |
| Mar 11, 2026 | EF1 | Sykesville Mape Arpt | 0 / 0 |
| Jul 10, 2000 | F1 | Savage | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Jul 30, 2016 | Flash Flood | Ellicott City | $22M |
| May 27, 2018 | Flash Flood | Ellicott City | $11M |
| Jun 5, 2024 | Tornado | Jonestown | $3M |
| Aug 28, 1992 | Tornado | – | $3M |
| Sep 24, 2001 | Tornado | North Laurel | $1M |
| Jun 8, 2022 | Thunderstorm Wind | Oakland Mills | $1M |
Source: NOAA Storm Events Database, county-based reports through Jul 28, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.
Hurricanes and tropical storms
Hurricane risk by county ›Since 1876, 2 hurricanes and 14 tropical storms have passed within 65 miles of the center of Howard County, 6 of them since 1950. The strongest was an unnamed hurricane in 1878, with top winds near 95 mph about 57 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Oct 23, 1878 | Unnamed | Category 1, 95 mph | 57 mi |
| Oct 14, 1893 | Unnamed | Category 1, 75 mph | 59 mi |
| Aug 4, 2020 | Isaias | Tropical storm, 65 mph | 50 mi |
| Sep 18, 1876 | Unnamed | Tropical storm, 65 mph | 51 mi |
| Aug 23, 1933 | Unnamed | Tropical storm, 65 mph | 54 mi |
| Aug 29, 1893 | Unnamed | Tropical storm, 65 mph | 62 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 4, 2020 | Isaias | Tropical storm, 65 mph | 50 mi |
| Sep 26, 1992 | Danielle | Tropical storm, 45 mph | 60 mi |
| Jun 3, 1963 | Unnamed | Tropical storm, 45 mph | 60 mi |
| Aug 18, 1955 | Diane | Tropical storm, 45 mph | 57 mi |
| Aug 13, 1955 | Connie | Tropical storm, 60 mph | 49 mi |
| Sep 1, 1952 | Able | Tropical storm, 60 mph | 20 mi |
Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.
Flood insurance in Howard County
Check your address flood zone ›National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.
Homes in Howard County
Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 125,286 housing units.
Compare in Maryland
All 24 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Montgomery County | Inland flooding | |
| Prince George's County | Inland flooding | |
| Baltimore County | Inland flooding | |
| Anne Arundel County | Inland flooding | |
| Baltimore City | Inland flooding | |
| Howard County | Inland flooding | |
| Frederick County | Inland flooding | |
| Harford County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Montgomery County | 19 | |
| Prince George's County | 17 | |
| Baltimore County | 22 | |
| Anne Arundel County | 21 | |
| Frederick County | 21 | |
| Carroll County | 17 |
Cities in Howard County
Common questions about Howard County
What is the biggest natural hazard in Howard County?
Inland flooding has the highest expected yearly losses in Howard County, about $29.9 million a year in FEMA's estimate. Heat wave is second at $4.8 million.
How many federal disasters has Howard County had?
Howard County has been included in 20 federal disaster or emergency declarations for natural events since 1971, including 14 major disasters. The most recent was Severe Winter Storm in January 2026.
Is Howard County a high-risk place to live?
Its overall rating is Relatively Low, 8th highest of 24 in Maryland. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.
Do I need flood insurance in Howard County?
Standard home insurance does not cover flooding. About 1 in 125 homes in Howard County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.
How many tornadoes has Howard County had?
NOAA records list 20 tornadoes in Howard County since 1950. The strongest was an F2 tornado on September 24, 2001 near North Laurel. The weather service has also logged 55 hail reports and 161 floods here.
How many hurricanes have hit Howard County?
NOAA's hurricane records show 2 hurricanes and 14 tropical storms passing within 65 miles of the center of Howard County. The strongest was an unnamed hurricane in 1878, with winds near 95 mph.
Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.