Armm. I don't have enough context to your request but this could work: https://inecnigeria.org/collections/ When you click on each of them, it gives you stats into the INEC structure in each state from LGA to RA and to PU.

Here is a link to the data request https://open.africa/dataset/nigeria-ward-population

Neither of the link provided here worked. Does this mean the data are not available?

The second link shared has a download option for the data. Please see: https://open.africa/dataset/nigeria-ward-population/resource/bd09e182-38c3-45ba-8c7b-db7060fca742