Facts and Figures Population* 171 483 Retail purchasing power* 5 074 EUR/Einwohner/Jahr Labour market General Unemployment rate* 5,20 % Labour - total* 51 150 person employed Labour by job specification Labour - expert* 9 % Labour - specialist* 10 % Labour - skilled worker* 64 % Labour - helper* 17 % Gross salary by job specification Gross salary - expert* 5 529 €/month Gross salary - specialist* 4 224 €/month Gross salary - skilled worker* 3 360 €/month Gross salary - helper* 2 622 €/month Area information Types of use District area* 1 085,72 km² Industrial and commercial area* 716 ha Residential building area* 6916 ha Agricultural area* 17 ha Location in Germany District with all municipalities Contact My|BusinessLocation Kundenservice Website