DuPage County residents will observe the 15th anniversary of the Sept. 11 terrorist attacks with a variety of events Sunday. Here’s a look:

• Naperville’s annual remembrance, sponsored by the city’s Exchange Club, will begin at 1 p.m. at the Cmdr. Dan Shanower/Sept. 11 Memorial along the Riverwalk behind city hall, 400 S. Eagle St. The Millennium Carillon bells will toll at 12:30 p.m. in remembrance of the anniversary, followed by a special performance of patriotic music by the Naperville Municipal Band at 12:45 p.m. In case of rain, the event will take place inside the municipal center. The program will feature remarks from Cmdr. Shanower’s brother, Thomas Shanower, who served 2½ years in the Peace Corps in the Kingdom of Tonga before working in India and West Africa, and then joining the U.S. Department of Agriculture in 1998. He currently serves as an associate area director for the Agricultural Research Service’s Pacific West Area. Info: exchangeclub.org.

• The Wheaton College Young Americans for Freedom will display 2,977 American flags on campus to remember those killed in 2001 as part of the Sept. 11: Never Forget Project. More than 200 campuses participate in the project each year. The observance has special meaning in Wheaton because Todd Beamer, one of the heroes of Flight 93 who led the charge to retake the plane that crashed in Shanksville, Pennsylvania, is a graduate of Wheaton College. Info: yaf.org.

• A brief remembrance ceremony for victims of Sept. 11 and an open house are from 8:30 to 10 a.m. at Lombard Fire Department’s Fire Station 1, 50 E. St. Charles Road. Fire department staff members will lead a moment of silence, a bell-ringing ceremony and share some brief comments. Info: (630) 620-5736.

• Oak Brook will have a public memorial ceremony at 9 a.m. at the village hall, 1200 Oak Brook Road. The event will feature a color guard, patriotic songs and speakers. Info: oak-brook.org.

• Naper Settlement will have a memorial program from 10:30 a.m. to noon at 523 S. Webster St., Naperville. Retired Naperville Fire Department Capt. Chuck Wehrli discusses how he was mobilized on Sept. 11, 2001, after the terrorist attacks in New York. Because of relationships he made with other first responders, Wehrli was able to procure a steel beam from the World Trade Center, which now rests at the Cmdr. Dan Shanower/Sept. 11 Memorial. Free. Info: napersettlement.org or (630) 420-6010.

• The Naperville Interfaith Leadership Association has a community commemoration at 4 p.m. in North Central College’s Wentz Concert Hall, 171 E. Chicago Ave., Naperville. Family activities designed to promote tolerance and compassion start in the lobby, followed by an interfaith service at 5 p.m. with music, readings and reflections of different beliefs. Info: (630) 697-1942.