Facts and Figures Population* 275 807 Retail purchasing power* 6 313 EUR/Einwohner/Jahr Labour market General Unemployment rate* 4,90 % Labour - total* 98 570 person employed Labour by job specification Labour - expert* 15 % Labour - specialist* 14 % Labour - skilled worker* 51 % Labour - helper* 20 % Gross salary by job specification Gross salary - expert* 7 087 €/month Gross salary - specialist* 5 484 €/month Gross salary - skilled worker* 3 751 €/month Gross salary - helper* 2 938 €/month Area information Types of use District area* 453,03 km² Industrial and commercial area* 1301 ha Residential building area* 3001 ha Agricultural area* 26 ha Location in Germany District with all municipalities Contact My|BusinessLocation Kundenservice Website