In subsequent work, we examined the concentration of liquor stores in Los Angeles County, using data from the 1987 Census of Retail Trade. The first map shows the distribution of liquor stores in 1987. The distribution of liquor stores is highly concentrated in the central core of the county, particularly in South Central Los Angeles. On the other hand, the population density of the central core is higher.
To correct for this, we calculate liquor store density. The second map shows liquor stores on a per capita basis. As seen, while there is still a higher concentration in the central core of Los Angeles County, the pattern is much more complex. Many other areas of the county have a high concentration and many areas in South Central Los Angeles have low densities. This probably indicates that liquor stores are concentrated in commercial areas and that these distributed in certain locales. While liquor stores represent a major problem for poorer communities, the problem is exacerbated because there are relatively few other retail businesses. Consequently, liquor stores represent a higher proportion of businesses in low income communities.