The US dollar is legal tender in eight countries. 

These countries are: 
⬜️ The United States of America 🇺🇸
⬜️ Ecuador 🇪🇨
✅ El Salvador 🇸🇻
⬜️ the Marshall Islands 🇲🇭
⬜️ Micronesia 🇫🇲
⬜️ Palau 🇵🇼
⬜️ East Timor 🇹🇱
⬜️ Zimbabwe 🇿🇼

  