Generally any urban area where there is a degree of socioeconomic deprivation.
That sounds like I'm mapping disease incidence.
But seriously, print this out for future reference:
PATHOLOGY OF THE 'CHAV':
conventional, potent strain thought to have emerged circa
1997; precise site of origin unknown, but most likely in western Europe.
is pandemic in developed countries of the western hemisphere and mainland Europe; transmits via human social contact and is potentiated in environments with poor parenting and deprived socioeconomic conditions.
antisocial behaviour; typical strains depict variants of Nike Air Max trainers, but Adidas, and in isolated cases, Reebok, trainers are present in some localities; corrupted and often incomprehensible dialects; loitering in an intimidating fashion with bikes and dogs; indecorous outerwear initially manufactured for sporting purposes. Varies by country.
hide yo wife, hide yo kids; known to be highly contagious during adolescence.