Croatia is 2.8 times larger than Slovenia.
Area: 56,594 km2 World Factbook
Population: 4,470,534 (July 2014) World Factbook
Croatia, officially the Republic of Croatia, is a unitary democratic parliamentary republic at the crossroads of Central Europe, Southeast Europe, and the Mediterranean. Its capital and largest city is Zagreb. The country is divided into 20 counties and the city of Zagreb. Wikipedia
Area: 20,273 km2 World Factbook
Population: 1,988,292 (July 2014) World Factbook
Slovenia, officially the Republic of Slovenia, is a nation state in southern Central Europe at the crossroads of main European cultural and trade routes. It borders Italy to the west, Austria to the north, Croatia to the south and southeast, and Hungary to the northeast. Wikipedia