National drug use prevalence figures represent average rates of use among t
he general population. Such prevalence figures are often used to make cross
-national comparisons and to evaluate the effectiveness of different nation
al drug policies. It is argued here that these national-level numbers mask
interesting and important differences between local areas. In 1997, researc
hers asked approximately 22,000 respondents, selected from five categories
of distinct address density municipalities throughout the Netherlands, abou
t their lifestyles and use of licit and illicit drugs. The data collected i
ndicated divergence between drug use prevalence in urban and rural municipa
lities, whereas other drug use indicators, such as age of first use, seemed
unaffected by address density. The survey data also revealed distinctions
between drug use prevalence in Amsterdam, Rotterdam, The Hague, and Utrecht
, although the cities occupy the same level of address density. This paper
addresses some of these discrepancies in prevalence rates and offers an exp
lanation in terms of the differential "lifestyles" of the various cities re
presented by sample respondents.