Facts and Figures Population* 137 574 Retail purchasing power* 6 200 EUR/Einwohner/Jahr Labour market General Unemployment rate* 3,10 % Labour - total* 53 010 person employed Labour by job specification Labour - expert* 10 % Labour - specialist* 12 % Labour - skilled worker* 55 % Labour - helper* 22 % Gross salary by job specification Gross salary - expert* 5 674 €/month Gross salary - specialist* 4 713 €/month Gross salary - skilled worker* 3 612 €/month Gross salary - helper* 2 718 €/month Area information Types of use District area* 789,33 km² Industrial and commercial area* 779 ha Residential building area* 4057 ha Agricultural area* 33 ha Location in Germany District with all municipalities Contact My|BusinessLocation Kundenservice Website