Yes, you can buy Powerball tickets online in Illinois through the official website or mobile app of the Illinois Lottery. This convenient option allows players to purchase tickets, check results, and manage their accounts digitally. Online ticket sales provide a secure and easy way to participate in Powerball drawings from the comfort of your home. Make sure to verify the legitimacy of the website or app before making any transactions. Enjoy the convenience of buying Powerball tickets online in Illinois and good luck with your numbers!