yeareach

Yeareach is a term used in marketing analytics to describe the total audience exposure achieved over the course of a calendar year. In practice, yeareach refers to the number of unique individuals who were reached by one or more marketing activities within a year, with attempts to avoid counting the same person multiple times across channels. Because people can be exposed to a brand via TV, online video, social media, email, or in-store interactions, calculating yeareach requires deduplication and cross-channel attribution.

Etymology: the word is formed from year and reach, pointing to annual exposure measurement. It is not a standardized term with a single official definition, and different organizations may compute it differently.

Calculation: yeareach can be estimated by aggregating reach figures from multiple channels and applying overlap correction using audience modeling, probabilistic methods, or deterministic unique-user data when available. Some approaches report a lower bound by taking the union of channel reach under strong deduplication, while others may rely on panels or identity graphs to estimate overlaps.

Applications: marketing planners use yeareach to compare annual audience breadth against goals, budget allocations, and prior years. It can support strategic decisions about which channels to invest in and how to scale campaigns.

Limitations: measuring yeareach hinges on data quality, privacy constraints, and the absence of a universal standard. Estimates can vary across vendors and methodologies.

See also: reach, frequency, unique users, impressions, cross-media measurement.