Herve is a city and municipality of Wallonia located in the province of Liège, Belgium. On January 1, 2018 Herve had a total population of 1…Herve is a city and municipality of Wallonia located in the province of Liège, Belgium. On January 1, 2018 Herve had a total population of 17,598. The total area is 56.84 km² which gives a population density of 310 inhabitants per square kilometre.