Four zones of threat to potato cultivation by golden cyst nematode were outlined in Poland on the basis of comparative analyses of four factors: localities, agricultural farms, number of pest foci and area of infested arable land and also on the basis of localization and density of sites with the pest. The results of analyses, based on very numerous data from many years of observations in commercial fields, are well documented for majority of voivodships belonging to III and IV zones of threat; groups of voivodships in which density of localities with golden cyst nematode is greatest.