Overview

• Field operations run from October 6 to November 14 with 44,501 interviewers deployed as part of a 63,000‑person effort.
• The sample covers about seven million dwellings across all 32 states and 2,478 municipalities, spanning urban and rural localities.
• Most responses are gathered face to face on smartphone‑size devices, with some households invited to answer online or by phone.
• Safety protocols prohibit accompaniment by the National Guard, municipal police or the Army, and allow team deployments or rescheduling in high‑risk areas.
• Enumerators wear beige uniforms and carry photo IDs with QR codes for verification, and the roughly 12‑minute questionnaire of up to 101 items covers migration, displacement, fertility, mortality, disability and household services.