New Zealand is approximately 268,838 sq km, while American Samoa is approximately 224 sq km, making American Samoa 0.08% the size of New Zealand. Meanwhile, the population of New Zealand is ~4.9 million people (4.9 million fewer people live in American Samoa).
This to-scale map shows a size comparison of New Zealand compared to American Samoa. For more details, see an in-depth quality of life comparison of American Samoa vs. New Zealand using our country comparison tool.