Riga is the capital, the primate, and the largest city of Latvia. Home to 605,273 inhabitants, the city accounts for a third of Latvia's total population. The population of Riga metropolitan area, which stretches beyond the city limits, is estimated at 860,142. The city lies on the Gulf of Riga at the mouth of the Daugava river where it meets the Baltic Sea. Riga's territory covers 307.17 km2 and lies 1–10 m above sea level on a flat and sandy plain.