High sales volume and limited supply characterized the Fairfield County housing market this quarter. While the number of overall sales fell 15.4% to 3,335 from the prior year quarter, it was the second highest number of second quarter sales in 12 years. Both single family and condo sales followed the same pattern. Listing inventory countywide fell 7.7% to 5,972 from the prior year quarter, the lowest second quarter supply in 12 years. Condo inventory has annually declined for 5 consecutive quarters. As a result, price trend indicators moved higher…