Facts and Figures Population* 250 547 Retail purchasing power* 5 981 EUR/Einwohner/Jahr Labour market General Unemployment rate* 4,90 % Labour - total* 95 920 person employed Labour by job specification Labour - expert* 9 % Labour - specialist* 12 % Labour - skilled worker* 58 % Labour - helper* 21 % Gross salary by job specification Gross salary - expert* 5 876 €/month Gross salary - specialist* 4 743 €/month Gross salary - skilled worker* 3 677 €/month Gross salary - helper* 2 881 €/month Area information Types of use District area* 450,40 km² Industrial and commercial area* 1102 ha Residential building area* 5444 ha Agricultural area* 8 ha Location in Germany District with all municipalities Contact My|BusinessLocation Kundenservice Website