Demographic question sets are named groupings of demographic_questions an organization attaches to a job post or candidate survey to collect self-reported applicant demographic data (e.g. for DE&I reporting). A set is either custom (defined by the organization) or linked to a Greenhouse-supplied standard set; in both cases its child questions live under /v3/demographic_questions?demographic_question_set_id={id}. Inactive (soft-removed) and disabled sets are returned by default so historical applicant submissions stay readable — use active and enabled to narrow to live sets only.