Jackson County residents can buy half-price tickets to some Kansas City Royals games this season. The Royals open the 2011 season at home Thursday against the Los Angeles Angels.

The discount applies to 15 games this year. The first three are the April 6 game against the Chicago White Sox, the April 17 against the Seattle Mariners and the April 29 game against the Minnesota Twins. The buy-one, get-one-free discount applies to $27 field plaza seats, $25 outfield box seats and $19 reserved box seats.

They can be bought in two ways:

• At the Kauffman Stadium box office. Bring an ID that shows your Jackson County ZIP code.

• Online at www.royals.com/jackson, and then enter JACKSON as the password. Your address must have a Jackson County ZIP code.