> ## Content Index
> Fetch the complete content index at: https://www.adlingo.org/llms.txt
> Use this file to discover other available public pages before exploring further.

# Audience Index
- URL: https://www.adlingo.org/glossary/audience-index/
- Published: 2025-01-15T11:52:00.000Z
- Updated: 2025-01-15T11:52:00.000Z
- Description: A metric comparing the concentration of a target audience in a particular media vehicle to their concentration in the general population.
- Author: Travis Lusk
- Tags: Agencies & Holdcos, #glossary, #Import 2026-10-27 17:05

A quick read on whether a media vehicle over- or under-delivers your target. An index of 100 means parity with the general population. Over 100 means concentration. Under 100 means you are buying reach you probably cannot use. It is a starting filter, not a final answer. High index with low reach is still a niche buy.