Portlandia's nearest audiences are comedians, actors, and public-radio fixtures — with no single neighbor pulling far ahead of the rest.
The shape is flat: scores run from 0.95 at the top to 0.94 at position 10, a band of less than two percentage points. Adam Scott (0.95) and Karen Kilgariff (0.95) sit at the head of the cluster, followed closely by Jonathan Van Ness (0.95) and Jemaine Clement (0.95). Tallying the top 10 by subcategory: four are Comedians (Karen Kilgariff, Jemaine Clement, Pete Holmes, Nick Kroll), two are Actors (Adam Scott, Kristen Schaal), one is a TV Personality (Jonathan Van Ness), and two are News Publishers (The National at 0.95, NPR Music at 0.94). The lone TV Show in the top 10 is absent — Portlandia's own subcategory does not appear among its nearest neighbors; the audience shape is defined almost entirely by individual performers and editorial media brands rather than other TV properties. The presence of two News Publishers alongside a dense comedian-and-actor cluster is the most structurally notable feature: this audience sits at the intersection of alternative comedy and public-media sensibility.
The flat distribution across these neighbors suggests an audience with consistent, diffuse overlap across a specific cultural register rather than a concentrated attachment to any single figure or format.