Answer:
4. セーラムの人口は173,442人です
5. ポートランドの人口は653,115人です
6. 東京の人口は9,273,000人です
Keep in mind that all these are direct translations. So it might be slightly sloppy since it was directly translated and not fit for Japanese slang and shortenings. So please correct me if this is slightly off :)
