South Africa is approximately 1,219,090 sq km, while Ireland is approximately 70,273 sq km, making Ireland 5.76% the size of South Africa. Meanwhile, the population of South Africa is ~56.5 million people (51.3 million fewer people live in Ireland).
This to-scale map shows a size comparison of South Africa compared to Ireland. For more details, see an in-depth quality of life comparison of Ireland vs. South Africa using our country comparison tool.