Hi Phumulo,
Whilst we don’t have the exact figure at hand, we’d suggest first accessing ABS data, and then exploring the Queensland Education departments website also for the relevant information.
Many people living on the Cape York Peninsula are speaking English as their second, third and even fourth language. For many speakers of additional languages, their spoken comprehension may be better than their written; you may like to consider other forms of communication, depending on your design solution.
Luke