West Springfield-based United Financial Bancorp, the holding company for United Bank, reported net income of $2.4 million for the third quarter, compared to $1.3 million for the corresponding period in 2007, an 84.6 percent increase.

The improved results were largely due to a significant increase in net interest income, driven by net interest margin expansion and growth in average earning assets, and to a lesser extent, growth in non- interest income, the company said.