Currently there are 17 homes on the market in Jefferson county, Washington that are priced over $1,000,000 with an average time on the market of 480 days and an average price per square foot of $520. In the last year only 9 homes have sold in Jefferson county over $1,000,000 with an average time on the market of 336 days. average price per square foot for the sold properties was $440 while the average asking price per foot for the sold properties was $497. Just some curious facts.