Downtown Brookfield gets its annual dose of ghosts, ghouls and free candy this Saturday, October 24, when Monsters on Mainstreet brings trick-or-treating to Broadway Avenue and the surrounding business district from noon to 3 p.m. Kids can hit up participating shops marked with Monsters on Mainstreet signs, and the first 500 young trick-or-treaters will score free pumpkins, apple drinks and taffy apples. The day wraps with a costume contest at Grossdale Station starting at 3 p.m., with prizes up for grabs in categories for both kids and adults.
The event is sponsored by the Brookfield Historical Society, the Brookfield Chamber of Commerce and the Village of Brookfield, according to a Village of Brookfield Government Facebook post announcing this year's schedule. Free pumpkins and other treats will be handed out starting at 2:30 p.m., just ahead of the costume judging. What looks like a simple neighborhood tradition actually traces back to a deliberate economic push: the Riverside-Brookfield Landmark reported that Monsters on Mainstreet was established in 1999 as an economic development initiative meant to drive foot traffic into downtown storefronts while Brookfield was applying to become a state-designated Main Street community.
From Guided Parades to Open Trick-or-Treating
The event didn't always look like it does now. The Landmark's reporting notes that organizers originally ran guided group parades starting from four different points around town, but switched to today's self-paced, open-walk format after single large groups arriving all at once overwhelmed small business owners trying to hand out treats. That shift reflects how merchant feedback shaped the event into its current, more manageable structure over the years.
The longtime force behind the tradition is Kit Ketchmark, who co-chaired the Mainstreet Brookfield Promotion Committee back in 1999 when the event launched. Ketchmark has served as Director of the Brookfield Historical Society since 1993 and is a current Brookfield Village Trustee, having previously spent eight years as Village President, according to background published by the Riverside-Brookfield Landmark and the PEP Party of Brookfield.
A Costume Contest Inside a 19th-Century Depot
Grossdale Station, located at 8820½ Brookfield Ave., is home to the Brookfield Historical Society and serves as the backdrop for the afternoon's costume contest. In past years, the Landmark has reported that the contest was broken into four age divisions — 4 and under, 5 to 8, 9 to 12, and 13 and up — with awards given for funniest, scariest and most creative costumes.
The depot itself carries more than a century of local history. Built in 1889 by real estate developer Samuel Eberly Gross, the station was slated for demolition in the late 1970s before local preservationists raised more than $20,000 to physically move the structure across the railroad tracks to its current site on April 9, 1981, according to the Riverside-Brookfield Landmark. The U.S. Department of the Interior recorded Grossdale Station on the National Register of Historic Places in 1980 under Reference #82004912, officially marking it as Brookfield's oldest surviving structure, per the Village of Brookfield.
Don't Confuse It With Halloween Night Hours
Saturday's business-district event is separate from the village's official residential trick-or-treating window. The Village of Brookfield has set municipal trick-or-treat hours for Halloween night itself, October 31, from 3 to 7 p.m., according to Kidlist — a distinction worth noting for families planning around both dates.
Brookfield's fall calendar doesn't stop at downtown storefronts, either. The Riverside-Brookfield Landmark notes that the village also hosts Boo! at the Zoo at Brookfield Zoo Chicago during October, giving families another seasonal option beyond Mainstreet's trick-or-treating and contest.
The village itself is a compact 3.07 square miles in Cook County, roughly 13 miles west of downtown Chicago, according to Wikipedia. U.S. Census Bureau data from 2020 put Brookfield's population at 19,476 residents, with children under 18 making up 24.3% of that total — a sizable share of the community that events like Monsters on Mainstreet are designed to reach.
