Facts and Figures Population* 312 033 Retail purchasing power* 5 157 EUR/Einwohner/Jahr Labour market General Unemployment rate* 4,30 % Labour - total* 121 520 person employed Labour by job specification Labour - expert* 11 % Labour - specialist* 11 % Labour - skilled worker* 57 % Labour - helper* 21 % Gross salary by job specification Gross salary - expert* 5 101 €/month Gross salary - specialist* 3 967 €/month Gross salary - skilled worker* 3 043 €/month Gross salary - helper* 3 429 €/month Area information Types of use District area* 949,80 km² Industrial and commercial area* 1892 ha Residential building area* 6898 ha Agricultural area* n.a. Location in Germany District with all municipalities Contact My|BusinessLocation Kundenservice Website