Buyers snatched up 13 single-family homes during the month and seven condominium units, according to the Warren Group, which tracks housing data statewide.
Those figures were up from January 2011, when eight homes and three condos sold.
For town-by-town single-family stats, click here; for condos, click here.
The median price for single-family homes increased 13.89 percent to $326,000.
Condo prices decreased 29.21 percent to $134,500.
Statewide, home sales increased on lower prices that drew buyers into the market, said Warren Group CEO Timothy Warren.
"After a decline in sales volume in December, it's promising to see the highest sales volume in five years in January," Warren said. "Given low mortgage rates and steady prices, there's hope this year may fare a bit better."
Justin A. Rice can be reached at email@example.com.