Population for Slovakia was 5.45701 Mil. of Persons in January of 2019, according to the United States Federal Reserve. Historically, Population for Slovakia reached a record high of 5.45701 in January of 2019 and a record low of 5.28845 in January of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for Population for Slovakia - last updated from the United States Federal Reserve on March of 2024.