Vaccination rates in some areas of the United States are decreasing. Decreases are slight but significant: the incidence of vaccine preventible disease outbreaks has risen. Vaccination is, once again, being hotly debated in public forums. In this paper, we examine current public framings of childhood vaccination to better understand how and why parents' vaccination opinions and behaviors are generally polarized into pro-and anti-vaccination camps. In California and Washington State, we found that instead of coalescing into these stark polarities, or even falling on a spectrum across a pro-and anti-vaccination divide, parents' perceptions of childhood vaccination were highly complex and better conceptualized as diverse and dynamic multidimensional assemblages. In light of this, we argue that the polarized view of vaccination is both incorrect and potentially alienating to the lay public. We suggest that providers and policymakers must begin to recognize the jagged, context-dependent, equifinal nature of how parents sort through vaccination-related information or account for their vaccination decisions in order to reverse declining vaccination rates in the United States.