Share households using improved source of drinking water Philippines 2017, by region

A total of 31,791 households were selected for the sample, of which 27,855 were occupied. Of the occupied households, 27,496 were successfully interviewed, yielding a response rate of 99 percent. In the interviewed households, 25,690 women age 15-49 were identified for individual interviews; these interviews were completed with 25,074 women, yielding a response rate of 98 percent.

The Philippines has 17 administrative regions namely, the National Capital Region (NCR), Cordillera Administrative Region (CAR), Region I (Ilocos Region), Region II (Cagayan Valley), Region III (Central Luzon), Region IV-A (CALABARZON), Region IV-B (MIMAROPA), Region V (Bicol Region), Region VI (Western Visayas), Region VII (Central Visayas), Region VIII (Eastern Visayas), Region IX (Zamboanga Peninsula), Region X (Northern Mindanao), Region XI (Davao Region), Region XII (SOCCSKSARGEN), Caraga Region, and the Autonomous Region in Muslim Mindanao (ARMM). Each of these regions are composed of provinces, highly urbanized cities (HUCs) or other special areas, which are subdivided into cities, municipalities, and barangays. The barangays are the smallest local government unit. National government offices are usually (but not always) concentrated in the regional centers, and the seat of the provincial government is situated in each of the respective provinces. The country has 81 provinces, 33 HUCs, and 42,036 barangays.