What countries don't use death penalty?

Answer 1

The United States is the only western nation that still uses capital punishment. The United States, Japan and Taiwan are the only fully developed countries that still engage in this practice.

It is important to note that, while the US Supreme Court currently considers capital punishment constitutional, many states do not. Fourteen states and the District of Columbia have formally abolished the death penalty; New York has declared part of their capital punishment statute unconstitutional, and is not engaging in this practice; thirty-five states still allow the death penalty for certain crimes, but vary in frequency of use.

Answer

If by Western countries you mean industrialized democracies, then only The United States of America, Japan and Taiwan currently use the death penalty. In the USA 36 states, the federal government and the U.S. military have a death penalty statute. As of now South Korea has a moratorium on the death penalty.

Answer 2

the U.S. is one i know, china and Iran use the death penalty but aren't democratic.

Answer 3

on eof them is the UK