Columbia rhymes with:
colombia, colombia, colombia, colombia, colombia, escambia, gambia, senegambia, zambia, agoraphobia, albea, arabia, arencibia, betabia, cancerphobia, claustrophobia, cobia, colombia, escambia, fabia, gambia, gebbia, homophobia, libya, lobbia, namibia, phobia, robia, rubbia, rubia, sabia, sarabia, senegambia, serbia, suburbia, tibia, tobia, xenophobia, zambia, zenobia, zubia
Columbia sounds like:
clamp, cleanup, climb, clump, clumpy, collomb, colomb, colombe, colombia, colombo, columba, columbo, coulombe, culinova