
International Advertising
Advertise in Chicago
Advertise in Chicago with One Day Agency
Connect with Midwestern US Audiences With Targeted Advertising in Chicago
Chicago is the most populous city in Illinois and the third most populated in the US. It is a major hub in the Midwestern and Great Lakes regions and a key destination for global brand advertisers.
Outdoor marketing in Chicago is a powerful tool for improving brand recognition in a city with a large population, sustained visitor numbers, and high traffic volumes. One billboard placement can generate as many as 600,000 impressions over its display period, with millions more for those in prime positions.
A population of 2.664 million is augmented by a staggering 55.3 million yearly visitors, representing a 6.5% year-on-year increase. International travellers flock to Chicago for the dramatic architecture, the famous arts and culture, the strong foodie scene, and iconic events like the Chicago Marathon, Lollapalooza, and the Chicago Blues Festival.
Why Advertise in Chicago?
Chicago is the third-largest US city, providing vast audience numbers. Its diverse and multicultural demographics ensure brands can target specific audience segments or create huge-scale campaigns to attract as many impressions as possible.
As a prominent US media market, the city's vibrant atmosphere, central location, and well-connected transport networks, including the Chicago Transit Authority (CTA) and expressways, offer ample out-of-home placements that connect with creatives, professionals, and tourists alike.
Home to multiple household brand name corporations like United Airlines, the financial marketplace CME Group, and the Walgreens Boots Alliance, alongside the University of Illinois Chicago, there are defined professional and student audiences that augment the brand advertising opportunity.
Why One Day?
One Day provides brands with access to an all-senior, multi-skilled and full-funnel team of advertising and marketing specialists, eliminating knowledge gaps and silos with a cohesive approach that delivers end-to-end support from one well-established team.
We collaborate with brands of every size, leveraging leading ad tech, media planning, and buying to maximise advertising efficiencies and incorporating creative, data-backed analytics to drive impressions and spark conversations in Chicago and other high-profile cities across the US and the wider world.
Advertise in Chicago: Key Formats
Latest Integrated OOH Campaigns.
See below our selected work in media planning and buying, click or tap to view.
Motorsports - Experiential OOH Campaign
FMCG - Out-of-Home Campaign in Ireland.
Non-Alcoholic Beer - Out-of-Home Campaign & TV

Meet the Media Planning Team
Klaudia
Head of Department
Shelby
Media Planning & Buying
Scott
Media Planning & Buying
“From the Magnificent Mile to Millennium Park, Chicago offers brands a powerful stage—and at One Day Agency, we help you own it. Our OOH campaigns tap into the city’s cultural, commercial, and commuter hotspots, reaching millions across one of America’s most influential urban landscapes.”
Ricardo Seixas, Founder and CEO, One Day Agency
Frequently Asked Questions.
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Like in most significant cities, outdoor advertising is regulated by several bodies, including the Department of Buildings for billboards erected on structures, the Department of Transportation for public transport marketing, and the Department of Business Affairs and Consumer Protection.
Each organisation has varied restrictions to ensure that out-of-home advertising complies with zoning rules relevant to specific areas, adheres to the limitations on the sizes and heights of billboards, and complies with regulations unique to historic neighbourhoods.
The best way to confirm whether your planned campaigns, placements, imagery, and text abide by the varied rules is to work with an accomplished global advertising team that can advise on what those regulations mean to you and whether your creatives and messaging are fully compliant.
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Chicago has long been one of the best cities in the US for marketing, with its famed jazz and blues scene, diverse population and renowned street food and skyline, as a city with a deep history integral to modern urban planning in the US.
Brands use the city’s status, reputation, and visitor volumes to capitalise on billboards and digital advertising placements that deliver excellent impressions, embed brand familiarity, and ensure that Chicago locals and international tourists engage with promotions and have high brand recognition.

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Chicago Advertising and Media planning.