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Firearm fatalities and Years of potential life lost

Where Firearm fatalities is higher, Years of potential life lost tends to be higher. The link is moderate: +0.55 across 2,003 counties, on a scale from −1 (opposite) to +1 (in step). That figure compares places with the same population density, income and education, so those differences can't explain it. It holds inside states too. Measured separately within each of 34 states, the middle value of the link is +0.70.

Holds after adjusting

Every place, plotted

One dot for each place reporting both measures. Hover over or tap a dot to see its name and values. The thin line is the straight line that best fits the dots. The bold line, shown for counties, is the link after adjusting for density, income and education. A dot far from the lines is a place that does not follow the pattern.

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What each measure is

Firearm fatalities

Deaths involving a gun per 100,000 people. Most are suicides and homicides, counted together.

County Health Rankings · County Health Rankings v148

Years of potential life lost

Years of life lost before age 75, per 100,000 people. A death at 25 counts as fifty years lost and a death at 70 as five, so earlier deaths count for more.

County Health Rankings · County Health Rankings v001

Highest and lowest

Where each measure is highest and lowest among the places reporting both (2023), with the other measure beside it. This is shown for every size of place where both are published. Metro-area values are added up from their counties. A measure that cannot be added up across counties, such as a middle value (median), has no metro figure. Counts are shown per 1,000 residents, since raw totals would only list the largest places. Cities and towns and ZIP codes are shown where the Census survey or the CDC publishes them; most other sources stop at the county. They are shown for places of 5,000 residents or more, and only where the survey’s margin of error is small enough for the figure to be usable. The CDC publishes its health estimates for cities in a version adjusted for age, so places with older or younger people can be compared fairly, but not for ZIP codes.

Counties

By firearm fatalities

Firearm fatalitiesYears of potential life lost
Highest
Phillips County, AR79.520,041
Leflore County, MS70.521,369
Wilcox County, AL63.819,439
Kusilvak Census Area, AK62.524,556
Lowndes County, AL61.119,891
Lowest
Middlesex County, MA1.864,416
Bergen County, NJ2.14,472
Norfolk County, MA2.184,629
Rockland County, NY2.295,423
Nassau County, NY2.324,800

By years of potential life lost

Firearm fatalitiesYears of potential life lost
Highest
Oglala Lakota County, SD3340,417
Todd County, SD40.634,850
Apache County, AZ22.227,851
McKinley County, NM19.427,593
Big Horn County, MT38.225,709
Lowest
Loudoun County, VA4.333,355
Arlington County, VA3.133,513
Fairfax County, VA5.23,772
Carver County, MN5.623,990
San Mateo County, CA4.124,006
States

By firearm fatalities

Firearm fatalitiesYears of potential life lost
Highest
Mississippi27.113,328
Louisiana24.912,185
New Mexico24.112,363
Wyoming23.88,978
Alabama23.711,853
Lowest
Massachusetts3.75,975
Hawaii4.326,299
Rhode Island4.476,529
New Jersey4.816,562
New York4.96,637

By years of potential life lost

Firearm fatalitiesYears of potential life lost
Highest
Mississippi27.113,328
West Virginia17.913,324
New Mexico24.112,363
Louisiana24.912,185
Alabama23.711,853
Lowest
Massachusetts3.75,975
Hawaii4.326,299
Utah136,429
Minnesota96,462
Rhode Island4.476,529
Metro areas

By firearm fatalities

Firearm fatalitiesYears of potential life lost
Highest
Greenwood, MS61.519,683
Greenville, MS58.320,282
Selma, AL48.420,427
Pine Bluff, AR43.915,702
Payson, AZ40.419,407
Lowest
Boston-Cambridge-Newton, MA-NH3.485,300
Worcester, MA3.496,707
Urban Honolulu, HI3.586,042
New York-Newark-Jersey City, NY-NJ3.656,070
Amherst Town-Northampton, MA3.845,587

By years of potential life lost

Firearm fatalitiesYears of potential life lost
Highest
Gallup, NM19.427,593
Clarksdale, MS39.122,826
Show Low, AZ24.221,728
Española, NM20.821,299
Selma, AL48.420,427
Lowest
Corvallis, OR8.264,158
San Jose-Sunnyvale-Santa Clara, CA3.984,202
Bozeman, MT16.94,276
Edwards, CO13.44,321
State College, PA5.984,450

Counties furthest from the pattern

Compared with the straight line that best fits all 2,004 counties: the five with far more years of potential life lost than their firearm fatalities would suggest, and the five with far less.

Firearm fatalitiesYears of potential life lost
Above the line
Oglala Lakota County, SD3340,417
Todd County, SD40.634,850
McKinley County, NM19.427,593
Apache County, AZ22.227,851
Mingo County, WV18.122,437
Below the line
Custer County, SD36.15,543
Phillips County, AR79.520,041
Ravalli County, MT32.96,195
Park County, CO33.77,198
Southeast Fairbanks Census Area, AK40.39,720

Two series, one county

Both measures over time for a county you pick. The two charts are stacked, so they share only the years along the bottom. You can pick from the thirty largest counties reporting both. This panel covers 2010–2024, and a measure published only once shows as a single dot.

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Every version of the link

Each row measures the same link, from −1 to +1, in a different way. If the rows mostly agree, the link does not depend on one choice of method.

Before adjusting for anything+0.7002,003 counties reporting both
After adjusting for density, income and education+0.545the part of the link that is not just how urban, rich and educated a place is
Also adjusting for population size+0.542size taken out as well as density
Also comparing only within each state+0.453each county is compared only with others in its own state, so this is no longer a comparison between states
Giving bigger counties more weight+0.682the adjusted link for the average resident rather than the average county. With this weighting, the data counts for about 264 equally weighted counties
Middle value inside single states+0.696the link worked out inside each of 34 states with at least 20 counties reporting
Using ranks, after adjusting+0.594uses each county’s rank, not its value, so a few extreme counties cannot create the link

How much to believe it

Could it be chance?

The p-value is the chance of seeing a link this strong if there were really none. A value of 0.05 or less means the link is unlikely to be chance. Very small values are written in short form: 3.1e-16 means 0.00000000000000031, and the bigger the number after “e-”, the smaller the value. Treating every county as a separate case gives p = 5.2e-155. But counties in the same state tend to resemble each other, so the better figure allows for that: p = 5.9e-18. The site tested 20,910 pairs, and testing so many turns up some flukes. The q-value allows for that too. For this pair it is 5.3e-154.

Do nearby places look alike?

Moran’s I measures how much nearby places look alike: 0 means no map pattern, and higher means neighbours are more similar. For the part of each county that the adjustment leaves unexplained, it is +0.28 (p = 0.001). That unexplained part still clusters on the map. So some regional factor shared by both measures is not accounted for.

Did they change together?

The figures above compare counties at one moment. This asks a different question: where firearm fatalities rose most, did years of potential life lostmove too? Each county’s change is compared with the average change in its own state. That takes out ups and downs that hit a whole region at once. Each change is the gap between two estimates that both contain some error. That error pulls these links towards zero, so a weak one is weak partly for that reason. The q column shows whether a link could be a fluke, allowing for the many pairs tested: 0.05 or less means it is unlikely to be chance.

PeriodCountiesChange togetherWithin statesq
2014–2019 the main test: each Census survey figure averages five years, and these two do not overlap; before the pandemic————
2019–2023 a repeat check: its two five-year survey figures both include 2019, and it covers the COVID years1,848+0.33+0.272.3e-9

Measured over the nearest years published: Firearm fatalities: 2019–2022 for the 2019–2023 row; Years of potential life lost: 2019–2022 for the 2019–2023 row.

Not measurable over the main period, so only the second period is shown. How change is measured.

Related pairs

Association only. Nothing here shows that either measure changes the other. This describes counties, not the people in them. Two measures going together across places does not mean the same people have both. How the US county data works · Explore Firearm fatalities and Years of potential life lost