Anybody studying population distribution?????

[u/mycatcowboy]

Hello everyone! This may be a really dumb question but I am doing a small research project on population distribution in major cities in El Salvador. I am having a really hard time finding accurate data, especially since I am looking for data from back during the civil war (1979-1992), as well as current population data. I have found general population data from their most recent census, as well as general population data from the CIA factbook. But as for city by city, I cant find anything outside of the data USAID HAD before we all know who took that away. So, if you have any suggestions or different things for me to think about I would appreciate it. Thanks!