Municipality Basic data Type of municipality Municipality Location Germany » Northrhine-Westphalia » Viersen, Kreis » Grefrath Population* 15 069 Retail purchasing power* 6 118 €/person/year Urbanization* medium populated Area information Municipal area* 30,98 km² Industrial and commercial area* 62 ha Residential building area* 271 ha Agricultural area* 0 ha Excise tax Level of business tax* 455 % (municipal rate) Level of land tax B* 490 % (municipal rate) Labour market (in district) Labour market Unemployment rate (in district)* 6,1 % Labour - total* 98 890 person employed Labour by job specification Labour - expert* 9 % Labour - specialist* 12 % Labour - skilled worker* 56 % Labour - helper* 23 % Gross salary by job specification Gross salary - expert* 5 551 €/month Gross salary - specialist* 4 354 €/month Gross salary - skilled worker* 3 367 €/month Gross salary - helper* 2 620 €/month Infrastructure Motorway Motorway (distance)* 7 km Motorway junction Wankum (A40) Nearby motorways A40 A61 Airport Airport (distance)* 30 km Name of airport Flughafen Düsseldorf Port Port (distance)* 22 km Name of port Rheinhafen Krefeld Port type Inland port Modality trimodal Waters Rhein Freight village Freight village (distance)* 61 km Name of freight village GVZ Herne-Emscher Modality trimodal Contact My|BusinessLocation Kundenservice Website