Here is a video with the map where you can see all locations of interest of Dead Rising 4. Mostly they are easy to find, but it could be a problem to find some of them.
2020-2-21 Dead Rising 4 Willamette Mall Map. Dead Rising 4 Willamette Mall map is included below that shows off all the areas of the mall map with over 90% of the areas being filled out. You can click the map below to get a full screen of it if you need to find anything. Dead Rising 4 Willamette Mall Map that shows off the entire map of Willamette mall in 4k viewing to see key locations or just get a look of each area in the world.
I think it was easier to see the locations this way than entering in every location, but just tell me if you need more help.Also, some of the locations can be obtained trough the main story. The pink icons are panic rooms, they do not count as location of interest.Pause the video every time you want to clearly see where are the locations.TIP: If you are unable to find some locations, I can recommend you to count them by zones very slowly. For example, go to old town, count all the icons and then count them on your map. If you get the same number, it means you got them all. Do this several times and very slowly because you can get lost or miss one icon because you think you have already counted that one. Also, once you have finished with every zone, get the total number of everything you have counted. If you get less than 163, you have missed one location.
Hope it is useful.EDIT: A lot of people were missing the apartment above Cameron´s Camera in Old Town, check that out because it is easy to miss that one!