New South Wales (Australia) is 4.9 times larger than Tunisia.
Area: 163,610 km2 World Factbook
Population: 10,937,521 (July 2014) World Factbook
Tunisia, officially the Tunisian Republic; is the northernmost country in Africa and, at almost 165,000 square kilometres in area, the smallest country in the Maghreb region of North Africa. Wikipedia
New South Wales (abbreviated as NSW), is Australia's most populous state, and is located in the south-east of the country, north of Victoria, south of Queensland, east of South Australia, west of Jervis Bay Territory and encompasses the whole of the Australian Capital Territory. Wikipedia