Table 2.

Zip code–level socioeconomic characteristics by zip code category

CharacteristicProportion of Black Residents in Zip CodeP
<5%5 to 14.9%15 to 24.9%25 to 49.9%>50%
Total number of zip codes (n)11,6202842118614911077
Median per capita income ($U.S.)21,40021,32318,75716,52814,032<0.0001
People below poverty line (%)9.7911.4213.9518.1125.45<0.0001
People employed in professional/managerial positions (%)31.1632.0228.9626.0523.71<0.0001
Housing units occupied by owner (%)76.7268.3766.6365.9659.40<0.0001
People aged >25 years with high school diploma (%)31.3226.9828.0228.7727.99<0.0001
People aged >25 years with college degree (%)12.5713.1310.948.937.45<0.0001
Zip codes in metropolitan areas (%)56.3277.0269.4855.8066.57<0.0001
  • There were 4 zip codes missing data on percentage of owner-occupied housing and 11 zip codes missing data on type of employment. Total number of zip codes was 18,216.