Calvert County Home Sales for May 2009. CLOSED HOME SALES! TOTAL SOLD 79 List Price Range # of Listings Avg Days on Market $0 - $29,999 1 193.00 $90,000 - $119,999 1 8.00 $120,000 - $149,999 2 21.50 $150,000 - $179,999 3 159.67 $180,000 - $209,999 8 146.50