Facts and Figures Population* 138 105 Retail purchasing power* 7 063 EUR/Einwohner/Jahr Labour market General Unemployment rate* 2,20 % Labour - total* 53 950 person employed Labour by job specification Labour - expert* 12 % Labour - specialist* 14 % Labour - skilled worker* 59 % Labour - helper* 14 % Gross salary by job specification Gross salary - expert* 7 057 €/month Gross salary - specialist* 5 781 €/month Gross salary - skilled worker* 4 604 €/month Gross salary - helper* 3 037 €/month Area information Types of use District area* 564,55 km² Industrial and commercial area* 345 ha Residential building area* 2587 ha Agricultural area* 145 ha Location in Germany District with all municipalities Contact My|BusinessLocation Kundenservice Website