•The security context in parts of northern Nigeria continues to hamper agricultural monitoring and national food security analyses.

•In collaboration with the European Commission’s Joint Research Centre (JRC), WFP uses high-resolution satellite images to evaluate cropland changes in hard-to-reach areas of north-eastern and north-western Nigeria, comparing the situation for 2020 and 2021 agricultural season with a baseline prior the beginning of the security crisis (NE: 2013, NW: 2017).