Somali entities have a tendency to inflate their figures for various reasons (aid being one of them).
This table is from the world bank thread:
View attachment 35228
SL (incl all of sool & half of sanaag even though SL controlled western sanaag is more densely populated) 673,263 + 1,242,003 + 721,363 + 327,428 + 272,062 = 3,236,119
PL (incl half of sanaag) 719,512 + 392,698 + 272,062 = 1,384,272
Yh, Mudug isn't included in the table, but even if north Mudug was taken to account SL's population would probably be double PL's population.