Sequoia sempervirens (Coast redwood) is only native to native to California and a bit of Southern Oregon in the United States of America. All others were planted by humans in the last 200 or so years from seedlings or seed from there.
So yes. There are American Sequoias that are older than any found in Canada since many of the old growth trees in California are over 1500 years old.
The same is true of the Sierra Redwood (Sequoiadendron gigantea) which has an even more restricted natural range in the Sierra Nevada of California.