Facts and Figures Population* 135 844 Retail purchasing power* 5 798 EUR/Einwohner/Jahr Labour market General Unemployment rate* 4,70 % Labour - total* 33 410 person employed Labour by job specification Labour - expert* 10 % Labour - specialist* 11 % Labour - skilled worker* 59 % Labour - helper* 19 % Gross salary by job specification Gross salary - expert* 6 522 €/month Gross salary - specialist* 4 651 €/month Gross salary - skilled worker* 3 600 €/month Gross salary - helper* 2 637 €/month Area information Types of use District area* 536,50 km² Industrial and commercial area* 723 ha Residential building area* 3463 ha Agricultural area* 19 ha Location in Germany District with all municipalities Contact My|BusinessLocation Kundenservice Website