Country size comparison
compared to
Zambia is about 1.5 times smaller than Colombia.
Colombia is approximately 1,138,910 sq km, while Zambia is approximately 752,618 sq km, making Zambia 66.08% the size of Colombia. Meanwhile, the population of Colombia is ~49.1 million people (29.4 million fewer people live in Zambia).
Compare further: Zambia vs. Colombia