Facts and Figures Population* 544 971 Retail purchasing power* 7 375 EUR/Einwohner/Jahr Labour market General Unemployment rate* 2,80 % Labour - total* 216 720 person employed Labour by job specification Labour - expert* 17 % Labour - specialist* 15 % Labour - skilled worker* 52 % Labour - helper* 16 % Gross salary by job specification Gross salary - expert* 7 393 €/month Gross salary - specialist* 5 417 €/month Gross salary - skilled worker* 4 045 €/month Gross salary - helper* 3 113 €/month Area information Types of use District area* 686,77 km² Industrial and commercial area* 1955 ha Residential building area* 5575 ha Agricultural area* 204 ha Location in Germany District with all municipalities Contact My|BusinessLocation Kundenservice Website