Property owners in most school districts in Delaware County have seen their school taxes rise once again, increasing bills by an average of $100, writes Meghan Bobrowsky for the Philadelphia Inquirer.

The modest $100 million increase in school funding provided by the state for this school year was not nearly enough to stave off another round of increases, which have been an annual practice for the last 10 years. They have increased an average of 25 percent in Chester, Bucks, Delaware, and Montgomery counties over this period.

School officials blame a number of issues for the increases, such as pension, contractual, and special-education costs, and various state and federal mandates.

The Chichester School District was the only school district in Delaware County to not increase taxes.

The following are the average tax increases in each Delco school district, except for the Chester-Upland School District, which was not included in the Inquirer’s analysis:

• Chichester: $0
• Upper Darby: $68
• William Penn: $74
• Ridley: $83
• Penn-Delco: $94
• Interboro: $97
• Southeast Delco: $105
• Springfield: $113
• Marple Newtown: $114
• Haverford Township: $124
• Rose Tree Media: $124
• Garnet Valley: $150
• Wallingford-Swarthmore: $190
• Radnor Township: $337

Read more about the tax increases in the Philadelphia Inquirer by clicking here.