Mexico is approximately 1,964,375 sq km, while Tunisia is approximately 163,610 sq km, making Tunisia 8.33% the size of Mexico. Meanwhile, the population of Mexico is ~128.6 million people (116.9 million fewer people live in Tunisia).
This to-scale map shows a size comparison of Mexico compared to Tunisia. For more details, see an in-depth quality of life comparison of Tunisia vs. Mexico using our country comparison tool.