Table 1

Quartile Distribution of ZIP Code–Level Data on Resident Characteristics, Local Crime Risk, and Pharmacy Density17

VariableValue
Population total
 Quartile 1<21,559
 Quartile 221,559 to <26,905
 Quartile 326,905 to <41,604
 Quartile 4≥41,604
Median age (yr)
 Quartile 1<31.75
 Quartile 231.75 to <34.00
 Quartile 334.00 to <38.28
 Quartile 4≥38.28
Median household income ($)
 Quartile 1<27,411
 Quartile 227,411 to <40,466
 Quartile 340,466 to <62,882
 Quartile 4≥62,882
% Female residents
 Quartile 1<51.0
 Quartile 251.0 to <52.9
 Quartile 352.9 to <54.1
 Quartile 4≥54.1
% White residents
 Quartile 1<7.8
 Quartile 27.8 to <16.8
 Quartile 316.8 to <59.3
 Quartile 4≥59.3
% Residents with income below federal poverty line
 Quartile 1<8.45
 Quartile 28.45 to <27.10
 Quartile 327.10 to <35.75
 Quartile 4≥35.75
% Graduated high school
 Quartile 1<74.7
 Quartile 274.7 to <85.2
 Quartile 385.2 to <92.00
 Quartile 4≥92.00
% Graduated college
 Quartile 1<10.00
 Quartile 210.00 to <18.50
 Quartile 318.50 to <42.85
 Quartile 4≥42.85
% Employed
 Quartile 1<46.4
 Quartile 246.4 to <56.7
 Quartile 356.7 to <65.3
 Quartile 4≥65.3
% Uninsured
 Quartile 1<11.0
 Quartile 211.0 to <16.9
 Quartile 316.9 to <22.9
 Quartile 4≥22.9
Local personal crime risk score
 Quartile 1<248.5
 Quartile 2248.5 to <410.0
 Quartile 3410.0 to <497.5
 Quartile 4≥497.5
Local property crime risk score
 Quartile 1<181.5
 Quartile 2181.5 to <321.0
 Quartile 3321.0 to <397.0
 Quartile 4≥397.0
Local total crime risk scorea
 Quartile 1<182.0
 Quartile 2182.0 to <354.0
 Quartile 3354.0 to <400.5
 Quartile 4≥400.5
Pharmacy density
 Quartile 1<0.72
 Quartile 20.72 to <1.21
 Quartile 31.21 to <1.88
 Quartile 4≥1.88
  • a U.S. average = 100.