Overdose Death Urbanicity Graphs

The figures below show the changes in age-adjusted death rates involving prescription opioids by urbanization classification of residence from year to year.

  • Large central metro—Counties in metropolitan statistical areas of 1 million or more population that:
    • Contain the entire population of the largest principal city
    • Have their entire population contained in the largest principal city
    • Contain at least 250,000 inhabitants of any principal city
  • Large fringe metro—Counties of 1 million or more population that did not qualify as large central metro counties.
  • Medium metro—Counties of populations of 250,000 to 999,999.
  • Small metro—Counties of populations less than 250,000.
  • Micropolitan—Counties in micropolitan statistical areas that have a population of at least 10,000 but less than 50,000.
  • Noncore—Nonmetropolitan counties that did not qualify as micropolitan.

Categories of 2013 NCHS Urban-Rural Classification Scheme for Counties (https://www.cdc.gov/nchs/data_access/urban_rural.htm)

County Urbanization Level 2016 Rate 2017 Rate
United States 5.2 5.2
Large Central Metro 4.7 4.7
Large Fringe Metro 5.2 5.2
Medium Metro 6 5.9
Small Metro 5.2 5.2
Micropolitan 5.7 5.6
Noncore 5.7 5.3


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