Starting Saturday, smoking is no longer allowed in restaurants and bars in Kirkwood, MO. All this comes one year beforea smoking ban takes effect St. Louis County and City wide...Voters overwhelmingly approved Kirkwood's Clean Air Act on November 3...Kirkwood is the second County municipality to go smoke-free; Ballwin is the other. Clayton goes smoke free in July...Arnold is on Jefferson County has had a smoking ban for several years.