In June 2019 New Business Ethiopia reported that a joint meeting of Parliament and the House of Federation decided to postpone the national population census because of instability in parts of the country.
A delayed census mattered for elections, budget shares, and ethnic federal claims, because outdated population numbers shape constituency maps and resource fights, so the postponement was more than a technical statistics delay.
Kept as elections and demography archive, the New Business Ethiopia report dates the mid-2019 decision to put the census on hold.
Sources: New Business Ethiopia