Census Enumeration Information System – A Case study of Part of Ikeja Gra Residential Layout, Ikeja of Lagos State

Census Enumeration Information System of part of Ikeja GRA residential layout, Ikeja Local Government area of Lagos State was conceived to manage census data in a digital database that is consistent and devoid of redundancy that enables data sharing and at the end, National Population Commission will be a node among the geospatial data information infrastructure in the national geo-spatial framework. Therefore, the design of a geodemographic digital database has become more useful and imminent for National Population Commission to establish a pragmatic database that will allow easy update and retrieval. Population data of the Five enumeration areas in the study area making up a Supervisory area were from the National Population Commission (NPC), Abuja; while the geometric data were digitized from 1.0m Ikonos image of the study area from the Office of the Surveyor-General of the Federation (OSGOF), Abuja and attribute data were from oral interview. Adekunle Fajuyi had a population density of 1426/ Km² as the most densely populated in the study area while the least was Oduduwa that had 422/ Km². The reason is attributed to more houses falling in residential category in Adekunle Fajuyi area while Oduduwa area have more buildings with residential purposes. The network analysis compared the results from taking the best route and alternative route from the assemblage point to a point in EA 0010. The difference between taking the best route and the alternative route is 7.4m. This is an indication that the best route is shorter than the alternative which will in turn saves time and cost of running the operations of the Enumerators. The maps of the best and alternative routes were produced. This structure if properly put in place is expected to provide for the implementation of a proper GIS in the National Population Commission nationwide.