The short answer is no.
Most comics distributed in the US were printed in the USA. A notable exception is Stanley Morse; Junior Hope #1-3, Mister Mystery #1-5, Mr Universe #1-4 and Weird Tales of the Future #1-4 - all were printed in Canada for distribution in US (there are no "Printed in USA" versions).
Once slabbed, you can't tell, since these are considered US editions by CGC (and OSPG and collecting community). Other than having a raw copy to check indicia, you can use GCD and Comic Book+. CGC only denotes Canadian comics or Canadian Price Variants on label.