When was silver removed from US coins?

The last silver dimes and quarters were dated 1964, although some were actually minted in 1965. All circulating dimes and quarters dated 1965 and later are made of copper-nickel.

The last silver dollars were dated 1935.

Silver was removed from half dollars in stages:

- Up to 1964 they were made of 90% silver

- From 1965 to 1970 they were 40% silver

- After that, they've been made of copper-nickel.

In addition, nickels minted from mid-1942 to 1945 contained a small amount of silver due to wartime shortages of nickel. Those are the only nickels that ever contained any silver.