The PMA2016/Lagos-R3 survey used a two-stage cluster design. A sample of 52 enumeration areas (EAs) was drawn from the National Population Commission’s¬†master sampling frame. In each EA households and private health facilities were listed and mapped, with 40 households randomly selected. Households were¬†surveyed and occupants enumerated. All eligible females age 15 to 49 were contacted and consented for interviews. The final completed sample included 1,727¬†households (91.3% response rate), 1,432 females (94.7% response rate) and 124 health facilities (93.9% response rate). Data collection was conducted between May and June 2016.