Typing the Letter Ñ and ñ

I could not find the letters "ñ" and Ñ on the keyboard. I have to copy and paste these letters if I have to use them to type names on my projects. How do we type these letters without copying and pasting them? I find it such a hassle to have the letters ñ and Ñ ready for copying and pasting each time I need to use them.
