69.6% of Oakville residents have English as their mother tongue (the corresponding figure for French is 1.8%). Polish is the native language for 1.5% of the population, followed by Italian, Portuguese, and Spanish (at 1.4% each).[20]
79.4% of residents stated their religion as Christian, almost evenly split between Roman Catholics and Protestants. Non-Christian religions include Islam: 2.0%, Hinduism: 1.3%, Sikhism: 1.1%, and Judaism: 0.7%. 14% indicated no religion.