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1 / 41#41. Adair County
- Life expectancy: 75.8 years
--- Same as state average
Counties with the longest life expectancy in Missouri
Life expectancy rates have been on the rise in the United States, with an increase of nearly seven years over the past half-century. (The average lifespan was 70.8 in 1970 and was documented as 77.5 in 2022, according to the Centers for Disease Control and Prevention.) There are many factors that can contribute to how long you'll live—from genetics to how much you drink or smoke, your diet and weight, and how physically active you are. But then there's the matter of where you live.
In some areas of the globe, dubbed "blue zones," there is a disproportionately high number of residents who live to at least 100 years old. These five particular pockets of the world—Ikaria, Greece; Loma Linda, California; Nicoya, Costa Rica, Okinawa, Japan; and Sardinia, Italy—are heavily researched, as scientists try to determine what it is about these residents' diets, lifestyles, and environments that can promote such longevity. While it may not be as obvious of a contributing factor, where you live can play a significant role in your overall lifespan, which is why some states and even counties in the U.S. tend to see longer life expectancy rates compared to others.
By delving into 2024 County Health Rankings & Roadmaps from the University of Wisconsin Population Health Institute, Stacker identified the counties with the longest life expectancy in Missouri. Life expectancy measures the average number of years from birth a person can expect to live and is calculated based on the number of deaths in a given time period and the average number of people at risk of dying during that period. Counties with unreliable or insufficient data were excluded from the analysis. Mortality data came from the National Vital Statistics System.
Read on to see if your county made the list.
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2 / 41#40. Linn County
- Life expectancy: 75.9 years
--- 0.1 years higher than the state average
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3 / 41#39. St. Clair County
- Life expectancy: 76.0 years
--- 0.2 years higher than the state average
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4 / 41#38. Lincoln County
- Life expectancy: 76.1 years
--- 0.3 years higher than the state average
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5 / 41#36. Barton County (tie)
- Life expectancy: 76.2 years
--- 0.4 years higher than the state average
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6 / 41#36. Moniteau County (tie)
- Life expectancy: 76.2 years
--- 0.4 years higher than the state average
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7 / 41#34. Macon County (tie)
- Life expectancy: 76.3 years
--- 0.5 years higher than the state average
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8 / 41#34. Monroe County (tie)
- Life expectancy: 76.3 years
--- 0.5 years higher than the state average
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9 / 41#29. Callaway County (tie)
- Life expectancy: 76.4 years
--- 0.6 years higher than the state average
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10 / 41#29. Carroll County (tie)
- Life expectancy: 76.4 years
--- 0.6 years higher than the state average
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11 / 41#29. Clinton County (tie)
- Life expectancy: 76.4 years
--- 0.6 years higher than the state average
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12 / 41#29. Howard County (tie)
- Life expectancy: 76.4 years
--- 0.6 years higher than the state average
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13 / 41#29. Johnson County (tie)
- Life expectancy: 76.4 years
--- 0.6 years higher than the state average
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14 / 41#28. Pike County
- Life expectancy: 76.5 years
--- 0.7 years higher than the state average
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15 / 41#27. Scotland County
- Life expectancy: 76.7 years
--- 0.9 years higher than the state average
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16 / 41#23. St. Louis County (tie)
- Life expectancy: 76.8 years
--- 1.0 years higher than the state average
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17 / 41#23. Shelby County (tie)
- Life expectancy: 76.8 years
--- 1.0 years higher than the state average
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18 / 41#23. Chariton County (tie)
- Life expectancy: 76.8 years
--- 1.0 years higher than the state average
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19 / 41#23. Perry County (tie)
- Life expectancy: 76.8 years
--- 1.0 years higher than the state average
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20 / 41#21. Warren County (tie)
- Life expectancy: 76.9 years
--- 1.1 years higher than the state average
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21 / 41#21. Livingston County (tie)
- Life expectancy: 76.9 years
--- 1.1 years higher than the state average
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22 / 41#20. Daviess County
- Life expectancy: 77.1 years
--- 1.3 years higher than the state average
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23 / 41#19. DeKalb County
- Life expectancy: 77.3 years
--- 1.5 years higher than the state average
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24 / 41#17. Cole County (tie)
- Life expectancy: 77.5 years
--- 1.7 years higher than the state average
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25 / 41#17. Mercer County (tie)
- Life expectancy: 77.5 years
--- 1.7 years higher than the state average
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26 / 41#16. Cass County
- Life expectancy: 77.6 years
--- 1.8 years higher than the state average
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27 / 41#14. Clark County (tie)
- Life expectancy: 77.7 years
--- 1.9 years higher than the state average
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28 / 41#14. Ste. Genevieve County (tie)
- Life expectancy: 77.7 years
--- 1.9 years higher than the state average
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29 / 41#11. Harrison County (tie)
- Life expectancy: 77.8 years
--- 2.0 years higher than the state average
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30 / 41#11. Christian County (tie)
- Life expectancy: 77.8 years
--- 2.0 years higher than the state average
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31 / 41#11. Cooper County (tie)
- Life expectancy: 77.8 years
--- 2.0 years higher than the state average
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32 / 41#10. Camden County
- Life expectancy: 77.9 years
--- 2.1 years higher than the state average
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33 / 41#8. Osage County (tie)
- Life expectancy: 78.5 years
--- 2.7 years higher than the state average
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34 / 41#8. Clay County (tie)
- Life expectancy: 78.5 years
--- 2.7 years higher than the state average
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35 / 41#7. Andrew County
- Life expectancy: 78.6 years
--- 2.8 years higher than the state average
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36 / 41#6. Boone County
- Life expectancy: 78.7 years
--- 2.9 years higher than the state average
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37 / 41#5. St. Charles County
- Life expectancy: 79.3 years
--- 3.5 years higher than the state average
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38 / 41#4. Holt County
- Life expectancy: 79.5 years
--- 3.7 years higher than the state average
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39 / 41#3. Platte County
- Life expectancy: 79.6 years
--- 3.8 years higher than the state average
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40 / 41#2. Nodaway County
- Life expectancy: 80.5 years
--- 4.7 years higher than the state average
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41 / 41#1. Worth County
- Life expectancy: 80.7 years
--- 4.9 years higher than the state average
This story features data reporting by Karim Noorani, writing by Kiersten Hickman, and is part of a series utilizing data automation across 50 states.
