The Butler County pension fund rose roughly $4 million since August, climbing to $142 million. The fund, which is mostly in the form of investments, dropped to $130 million in May before rebounding. County Controller Jack McMillin said unlike many other pension funds, the county’s fund is in good shape. “We’re in a healthy position,” he said. “We’re certainly in the top tier of public pension funds at our level.” McMillin said the pension plan is funded close to 78 percent, with 80 percent being the ideal number. There are 438 county retirees or beneficiaries who receive monthly payments.