Nigeria (Kaduna & Lagos) Round 1 Household and Female (HQFQ) survey used a three-stage cluster design, with urban-rural as strata in Kaduna. A sample of 66 clusters of enumeration areas (EAs) in Kaduna and 37 clusters of enumeration areas (EAs) in Lagos were drawn from the National Population Commission's master sampling frame along with a list of EAs contiguous to the index EA. The EAs in Nigeria are usually small, with approximately 48 households on average. To create clusters with a minimum of 200 households, each EA was listed and mapped.  If there were fewer than 200 households identified, the next EA in the list of contiguous EAs was listed and mapped in its entirety.  If the total number of households was still less than 200, the entirety of the third EA was listed and so on.  Each cluster of EAs serves as the primary sampling unit from which 35 households (40 in Lagos) and up to 3 private health facilities in both Kaduna and Lagos were randomly selected.  Households were surveyed and occupants enumerated. All eligible females age 15 to 49 were contacted and consented for interviews. The final sample included 2,194 households and 2,569 females in Kaduna; and 974 households and 764 females in Lagos. Data collection was conducted between September and October 2014.