Community Profile

Pledge Status

Active

Pledge Date

Wednesday, March 18, 2026

Program Year

2026

Links and Uploads

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Action Item Report

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Village of Willowbrook

Willowbrook, IL

Frank Trilla

Mayor

Pledge Summary

Willowbrook is a Village within the Chicagoland area, a southwestern suburb of the City of Chicago, with a population just over 9,000. The Village is located within DuPage County and is home to many parks and public greenspace, many of our Village parks have or are undergoing redevelopment which will see the installation of several features that will help increase the monarch butterfly population. Mayor Trilla has committed to helping save monarch butterflies and other pollinators with his signing of the Mayors' Monarch Pledge and looks forward to engaging residents in building more pollinator habitat throughout the Village.

Community Spotlight

Action Items Committed for 2026

Communications and Convening ▸

Issue a proclamation to raise awareness about the decline of the monarch butterfly and the species’ need for habitat. This proclamation must incorporate a focus on monarch conservation.

Program and Demonstration Gardens ▸

Plant or maintain a monarch and pollinator-friendly demonstration garden at City Hall or another prominent or culturally significant community location.
Display educational signage at monarch gardens and pollinator habitat.

Past Pledge Archive

Mayor Name	Program Year	Pledge Date	Achievement
Mayor Frank Trilla	2026	3/18/2026		View Pledge
Mayor Frank Trilla	2025	3/12/2025	Signatories	View Pledge
Mayor Frank Trilla	2024	2/22/2024	Signatories	View Pledge