Source & Notes
Data Table
Source: EMARKETER ForecastMarch 2026 
Note: includes large-format roadside advertising displays intended for viewing from extended distances (e.g., bulletins, posters, wall murals); includes both traditional and digital advertising
Additional Note: EMARKETER benchmarks its US billboard ad spending projections against Outdoor Advertising Association of America (OAAA) data, for which the last full year measured was 2025.
Methodology: Estimates are based on the analysis of various elements related to the ad spending market, including macro-level economic conditions, historical trends of the advertising market, historical trends of each medium in relation to other media, reported revenues of major ad publishers, estimates from other research firms, data from benchmark sources, consumer media consumption trends, consumer device usage trends, and EMARKETER interviews with executives at ad agencies, brands, media publishers, and other industry leaders.
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