The analysis of demonstration locations classified by degree of urbanization shows that demonstrating is an urban phenomenon. Seldom are demonstrations held in thinly populated residential areas. A demonstration can thus be considered among the farms of political action for which the participation stimulating factors are clearly more present in urban areas than in rural areas. The distribution of the demonstrations over the regions indicates that more demonstrating is done in Flanders than in Wallonia. Flemings and 'walloons, moreover, appeared in the streets for different points of confiict during the period from 1953 to 1974. Demonstrations with ideological themes overwhelmingly, and communitarian themes mostly, occurred in Flanders; demonstrations for socioeconomic purposes occurred mostly in Wallonia. Demonstrations in the capital, Brussels, had the most participants on the average in general andalso for the three conflict areas.