Covasna County in the context of "Székely Land"

The Hungarian minority of Romania (Hungarian: romániai magyarok, pronounced [ˈromaːnijɒji ˈmɒɟɒrok]; Romanian: maghiarii din România) is the largest ethnic minority in Romania. As per the 2021 Romanian census, 1,002,151 people (6% of respondents) declared themselves Hungarian, while 1,038,806 people (6.3% of respondents) stated that Hungarian was their mother tongue.

Most ethnic Hungarians of Romania live in areas that were parts of Hungary before the Treaty of Trianon of 1920. Encompassed in a region known as Transylvania, the most prominent of these areas is known generally as Székely Land (Romanian: Ținutul Secuiesc; Hungarian: Székelyföld), where Hungarians comprise the majority of the population. Transylvania, in the larger sense, also includes the historic regions of Banat, Crișana and Maramureș. There are forty-one counties of Romania; Hungarians form a large majority of the population in the counties of Harghita (85.21%) and Covasna (73.74%), and a large percentage in Mureș (38.09%), Satu Mare (34.65%), Bihor (25.27%), Sălaj (23.35%), and Cluj (15.93%) counties.

About 9.3% of Romania's population is represented by minorities (the rest of 77.7% being Romanians), and 13% unknown or undisclosed according to 2021 census. The principal minorities in Romania are Romani people, and Hungarians (Szeklers, Csangos, and Magyars; especially in Harghita, Covasna, and Mureș counties), with a declining German population (in Timiș, Sibiu, Brașov, or Suceava) and smaller numbers of Poles in Bukovina (Austria-Hungary attracted Polish miners, who settled there from the Kraków region in contemporary Poland during the 19th century), Serbs, Croats, Slovaks and Banat Bulgarians (in Banat), Ukrainians (in Maramureș and Bukovina), Greeks (Brăila, Constanța), Jews (Wallachia, Bucharest), Turks and Tatars (in Constanța), Armenians, Russians (Lipovans, in Tulcea), Afro-Romanians, and others.

To this day, minority populations are greatest in Transylvania and the Banat, historical regions situated in the north and west of the country which were former territorial possessions of either the Kingdom of Hungary, the Habsburgs, or the Austrian Empire (since 1867 the dual monarchy of Austria-Hungary until World War I).

The Olt (Romanian and Hungarian; German: Alt; Latin: Aluta or Alutus, Turkish: Oltu, Ancient Greek: Ἄλυτος Alytos) is a river in Romania. It is 615 km (382 mi) long, and its basin area is 24,050 km (9,290 sq mi). It is the longest river flowing exclusively through Romania. Its average discharge at the mouth is 174 m/s (6,100 cu ft/s). It originates in the Hășmaș Mountains of the eastern Carpathian Mountains, near Bălan, close to the headwaters of the river Mureș. The Olt flows through the Romanian counties of Harghita, Covasna, Brașov, Sibiu, Vâlcea, and Olt. The river was known as Alutus or Aluta in Roman antiquity. Olt County and the historical province of Oltenia are named after the river.

Sfântu Gheorghe, Râmnicu Vâlcea and Slatina are the main cities on the river Olt. The Olt flows into the Danube river near Turnu Măgurele.