Harmonising Subnational Boundaries

Center for International Earth Science Information Network; Flowminder Foundation; United Nations Population Fund; WorldPop, University of Southampton

“Harmonising Subnational Boundaries” discusses GRID3’s work to support the harmonisation, production, and use of digitised legal/administrative units, operational units, and statistical areas. GRID3’s boundaries work has three primary areas of focus: improving and harmonising operational units; fostering improved collaboration on boundary harmonisation among disparate government bodies; and using boundaries harmonisation to support census efforts. The paper focuses on case studies in Nigeria, the Democratic Republic of the Congo, and Zambia.

GRID3 works with countries to generate, validate and use geospatial data on population, settlements, infrastructure, and subnational boundaries. For more information, see

Keywords: administrative units; census; community health workers; digital boundaries; emergency operations; enumeration area; GIS; gridded population data; harmonisation; health catchment; microplan; operational units; points of interest; pre-enumeration area; routine operations; semi-automated delineation; settlement; settlement layer; settlement mapping; statistical areas; statistical infrastructure; subnational boundaries; sustainable development; GRID3; health zones; participatory mapping; vaccination; immunisation; CIESIN; UNFPA; Flowminder; WorldPop; polio


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Academic Units
Center for International Earth Science Information Network
Published Here
September 9, 2020

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Recommended Citation:
Center for International Earth Science Information Network (CIESIN), Columbia University; Flowminder Foundation; United Nations Population Fund (UNFPA); WorldPop, University of Southampton. 2020. Harmonising Subnational Boundaries. Palisades, NY: Georeferenced Infrastructure and Demographic Data for Development (GRID3). Accessed DAY MONTH YEAR.

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