HARRISBURG — Hundreds of top elected and appointed officials in Pennsylvania state government are about to receive pay raises, thanks to an automatic, annual cost-of-living adjustment.

The 1.6 percent increase announced today, authorized by a 1995 law designed to counter the effect of inflation, translates into increases of more than $3,000 for some of the highest-ranking officials.

They include Gov. Tom Corbett, whose official salary will grow to nearly $191,000 when the increase takes effect Jan. 1, although a spokesman said the governor, members of his Cabinet and his appointees to various boards and commissions have returned their raises since the administration took office in 2011. Corbett’s net salary remains about $175,000, said Dan Egan in the governor’s Office of Administration.

The state’s appellate judges are all in line for increases of more than $3,000.

The Pennsylvania Supreme Court’s chief justice’s salary will be $209,329 in January, about $3,300 more than retiring incumbent Ron Castille makes. The other justices will see their salaries increase by $3,200 to $203,408.

Judges on the state’s two mid-level appellate courts — the Superior Court and the Commonwealth Court — will see their salaries grow from about $189,000 to nearly $192,000.

County common pleas judges will see a nearly $2,800 increase that takes their salary to $176,572.

The elected statewide row officers — Attorney General Kathleen Kane, Treasurer Rob McCord and Auditor General Eugene DePasquale — will receive increases of $2,500 that boost their salary to nearly $159,000.

The new pay scale for legislators, which takes effect Monday, starts at $85,356, a $1,300 increase, and escalates with positions of increasing responsibility to more than $131,000 for the presiding officers of the House and Senate.