The municipality is divided into seven (7) Zonal Councils namely: Somanya, Oterkpolu, Boti, Nkurakan, Nsutapong, Klo-Agogo and Obawale The Yilo Krobo Municipality lies within the dry equatorial climatic zone which experiences substantial amount of precipitation.

This is characterized by a bi-modal rainy season, which reaches its maximum during the two peak periods of May – June and September – October.

The municipality lies within the semi-deciduous rain forest and the coastal savannah zone of the country.

Tree types that are most widespread in the municipality include palm, mango, nim, ceiba and acassia.

The rocks forming the ranges are called the Togo series, which include quartzites, phyllites, sandstones, phyllonites and sandy-shades.

The quartzites in the municipality are hard, massively bedded rocks but occasionally flaky varieties occur.

On the south-eastern part of the municipality is the Krobo Mountains from where it is believed the Yilo people migrated to the present area According to the 2010 Population and Housing Census (PHC) report, Yilo Krobo has a total population of 87,847 which comprises 42,378 males (48.2%) and 45,469 females (54.8%); depicting more females than males.

Table 1.8 shows the population size by locality of residence, the sex ratio and the percentage the municipality covers in the region.

The Volta, Greater Accra and Ashanti regions are relatively large in-migrant areas in the municipality, i.e., 2,429, 1,931 and 1,188 persons respectively.

Those who migrate might do so because of marriage since Upper East had the highest percentage (29.9) of persons who have stayed in the municipality for twenty years and above.