First Connecticut Bancorp posted double-digit growth in the third quarter, including a 14 percent year-over-year increase in commercial lending.

The parent company for Farmington Bank recorded net income of $4.2 million for the period ended Sept. 30, compared with $2.5 million a year ago.

Net interest income increased $1.7 million, or 11 percent, year-over-year to $17.7 million.

Total loans increased $287.6 million, or 14 percent, to $2.3 billion from the third quarter of last year. Compared with the second quarter, loans grew $50.4 million. An $82 million increase in the commercial portfolio offset a $31.5 million decline in the residential portfolio.

Deposits increased $245.4 million, or 14 percent, year-over-year to $2 billion.

Asset quality decreased slightly compared to the prior quarter due to one commercial loan relationship but improved year over year. Loan delinquencies of 30 days or more represented 0.67 percent of total loans at Sept. 30, compared with 0.58 percent at June 30 and 0.78 percent last year. Nonaccrual loans represented 0.71 percent of total loans, compared with 0.57 percent in the prior quarter and 0.76 percent last year.

In a statement, Chairman, President and CEO John J. Patrick Jr. said the bank had opened its 23rd branch earlier this month in West Springfield and planned to open another branch next month in East Longmeadow He said the bank also received regulatory approvals to open branches in Manchester and Vernon, Connecticut.

The company paid a cash dividend of 6 cents per share on Sept. 14, an increase of 1 cent compared to the linked quarter.