Interactive county map
Pick a state, pick a measure, see every county. 10 measures, 3,138 counties.
County map
Pick a state on the small map or in the list.
Counties by value
What each measure means
| Measure | Unit | Definition and source | Range |
|---|---|---|---|
| Storm events per 100,000 people | per 100k | NWS Storm Events 2015-2025 (outage-linked types: wind, tornado, tropical, ice, winter, heat, wildfire) divided by Census ACS 2023 residents. | 0 to 182,692 |
| Highest FEMA hazard risk score | 0-100 | FEMA National Risk Index, highest score among six outage-linked hazards (wind, tornado, hurricane, ice, winter, heat). | 4 to 100 |
| Home energy burden | % of income | DOE LEAD tool: yearly home energy cost as a share of household income, all households. | 0.8 to 14.2 |
| Energy burden, lower-income homes | % of income | DOE LEAD: same measure for lower-income households (80% of area median income or less). | 0.7 to 46.1 |
| Homes built before 1980 | % | Census ACS 2023 year-built tables. | 6.9 to 90.6 |
| Homes heated by electricity | % | Census ACS 2023 house heating fuel. | 0.6 to 96.8 |
| Electricity cost per home | $/year | DOE LEAD: average yearly electricity cost of a household. | 695 to 13,738 |
| Median household income | $ | Census ACS 2023 five-year median. | 25,425 to 178,707 |
| Flood claims per 1,000 homes | per 1,000 | FEMA NFIP flood claims with loss dates 2015-2025 per 1,000 residential structures (OpenFEMA); counties with 1,000+ structures and 5+ claims. Claims history, not an outage count. | 0.0 to 252.2 |
| Flood insurance penetration | % of homes | FEMA NFIP residential contracts in force divided by residential structures (OpenFEMA); counties with 1,000+ structures. | 0.0 to 64.9 |
Top five counties for each measure
Counties with fewer than 10,000 residents are left out of these tables because small counts swing widely; they are on the map and in the CSV.
The same figures as plain HTML, for readers without JavaScript and for search. Download as CSV
Show the table (50 rows)
| Measure | County (10,000+ residents) | Value | Unit |
|---|---|---|---|
| Storm events per 100,000 people | Carbon County, Wyoming | 17,218 | per 100k |
| Storm events per 100,000 people | Albany County, Wyoming | 10,381 | per 100k |
| Storm events per 100,000 people | Fremont County, Idaho | 4,700 | per 100k |
| Storm events per 100,000 people | Boundary County, Idaho | 3,245 | per 100k |
| Storm events per 100,000 people | Moffat County, Colorado | 2,927 | per 100k |
| Highest FEMA hazard risk score | Travis County, Texas | 100 | 0-100 |
| Highest FEMA hazard risk score | Tarrant County, Texas | 100 | 0-100 |
| Highest FEMA hazard risk score | Red River County, Texas | 100 | 0-100 |
| Highest FEMA hazard risk score | Potter County, Texas | 100 | 0-100 |
| Highest FEMA hazard risk score | Lubbock County, Texas | 100 | 0-100 |
| Home energy burden | Cook County, Georgia | 12.2 | % of income |
| Home energy burden | Washington County, Georgia | 9.1 | % of income |
| Home energy burden | Bethel Census Area, Alaska | 8.2 | % of income |
| Home energy burden | McDowell County, West Virginia | 7.0 | % of income |
| Home energy burden | North Slope Borough, Alaska | 6.9 | % of income |
| Energy burden, lower-income homes | Cook County, Georgia | 38.0 | % of income |
| Energy burden, lower-income homes | Washington County, Georgia | 26.6 | % of income |
| Energy burden, lower-income homes | Bethel Census Area, Alaska | 21.8 | % of income |
| Energy burden, lower-income homes | Custer County, Nebraska | 21.1 | % of income |
| Energy burden, lower-income homes | North Slope Borough, Alaska | 20.5 | % of income |
| Homes built before 1980 | Faribault County, Minnesota | 86.6 | % |
| Homes built before 1980 | Nassau County, New York | 86.1 | % |
| Homes built before 1980 | Cherokee County, Iowa | 85.6 | % |
| Homes built before 1980 | Philadelphia County, Pennsylvania | 84.2 | % |
| Homes built before 1980 | Martinsville city, Virginia | 83.6 | % |
| Homes heated by electricity | Union County, Florida | 96.8 | % |
| Homes heated by electricity | Douglas County, Washington | 96.2 | % |
| Homes heated by electricity | Clay County, Florida | 95.3 | % |
| Homes heated by electricity | Citrus County, Florida | 95.3 | % |
| Homes heated by electricity | Charlotte County, Florida | 95.2 | % |
| Electricity cost per home | Cook County, Georgia | 7,607 | $/year |
| Electricity cost per home | Washington County, Georgia | 5,209 | $/year |
| Electricity cost per home | Renville County, Minnesota | 3,832 | $/year |
| Electricity cost per home | Colfax County, Nebraska | 3,742 | $/year |
| Electricity cost per home | Bethel Census Area, Alaska | 3,312 | $/year |
| Median household income | Loudoun County, Virginia | 178,707 | $ |
| Median household income | Santa Clara County, California | 159,674 | $ |
| Median household income | San Mateo County, California | 156,000 | $ |
| Median household income | Falls Church city, Virginia | 154,734 | $ |
| Median household income | Fairfax County, Virginia | 150,113 | $ |
| Flood claims per 1,000 homes | St. John the Baptist Parish, Louisiana | 252.2 | per 1,000 |
| Flood claims per 1,000 homes | Monroe County, Florida | 234.6 | per 1,000 |
| Flood claims per 1,000 homes | Pamlico County, North Carolina | 192.1 | per 1,000 |
| Flood claims per 1,000 homes | Aransas County, Texas | 190.2 | per 1,000 |
| Flood claims per 1,000 homes | Orange County, Texas | 186.8 | per 1,000 |
| Flood insurance penetration | Jefferson Parish, Louisiana | 64.9 | % of homes |
| Flood insurance penetration | Poquoson city, Virginia | 63.0 | % of homes |
| Flood insurance penetration | Monroe County, Florida | 58.2 | % of homes |
| Flood insurance penetration | St. Bernard Parish, Louisiana | 56.8 | % of homes |
| Flood insurance penetration | St. Charles Parish, Louisiana | 55.7 | % of homes |
Questions
What does the county map show?
Counties of one state shaded by one of 10 measures: storm events per resident, FEMA hazard score, home energy burden, old housing, electric heating, flood claims, flood insurance and income. Select a county for its figures and a link to its page.
What is a storm event?
A record in the NOAA Storm Events database of an outage-linked type: damaging wind, tornado, hurricane or tropical storm, ice, winter weather, heat or wildfire, 2015 to 2025. It is a weather report, not a count of power cuts.
What is the FEMA risk score?
The National Risk Index gives each county a 0 to 100 score per hazard. The map uses the highest of six hazards that cause outages and names that hazard. It rates expected loss, not outage minutes.
What is energy burden?
The share of household income spent on home energy, from the DOE LEAD tool. Lower-income homes usually carry a higher burden than all households in the same county.
What is the colour scale option?
Whole US shades counties against national quintile breaks, so colours match across states. This state only spreads five shades across that state's own counties, which shows local differences.
Why are some counties missing a value?
Small counties or those without a record in the source file are drawn grey. The CSV leaves these cells blank.
How do I share a county view?
The address holds the state, measure and county. Copy it, or press Download PNG for a card with the map, legend and source.