As of 2024, two-thirds of New York City’s subway stations do not offer step-free access from the street to the platform (i.e. no elevators), making it difficult, or impossible, for certain riders to reach their destinations by transit. This study aimed to quantify basic, yet fundamental components of subway stations that influence their accessibility, such as the number of steps, the presence of hand-rails, and the width of platforms - most of which are not available to transportation planners or riders within trip-planning applications. Team members surveyed every entrance, along with the paths to platforms using an evaluation tool created with a mobile-phone survey collection app. The data collected demonstrate significant variability in several of these physical attributes, including wide variance in the number of steps from each station entrance to the same platform, as well more-specific accommodations such as tactile-guiding strips for persons with vision impairments. This novel data set, available here, can inform navigation decisions for riders, as well as prioritizing station upgrades by planners and policymakers..