Passage: Klaipėda (German: Memel), an important seaport in East Prussia, was detached from Germany by Article 28 of the Treaty of Versailles and was governed by the Allies according to Article 99. France assumed administration of the region while Lithuania continued to lobby for its control, claiming that it should belong to Lithuania as it had a significant Lithuanian population (see Lithuania Minor) and was that country's only access to the Baltic Sea. Poland also laid claim to the territory. As the Allies were hesitant to make a decision and it seemed that the region would remain a free state much like the Free City of Danzig, Lithuania took the initiative and organized the Klaipėda Revolt in January 1923. Soviet Russia and Germany supported the action. The region, as an autonomous territory with its own parliament (Klaipėda Parliament), was attached to Lithuania. The region covered about 2,400 km² and had a population of approximately 140,000.During the 1920s, Lithuania and Germany maintained a relatively normal relationship as they were united by anti-Polish sentiment. In January 1928, after long and difficult negotiations, Germany and Lithuania signed a border treaty, which left Klaipėda on the Lithuanian side. However, tensions began rising in the 1930s after the Weimar Republic was replaced with Nazi Germany. An especially tense period came in February 1934 when the Lithuanian government arrested dozens of pro-Nazi activists. In response to these arrests and trials, Germany declared a boycott of Lithuanian agricultural imports. The boycott caused an economic crisis in Suvalkija (southern Lithuania), where farmers organized violent protests. However, after the plebiscite in Saar most of the pro-Nazi prisoners received amnesty. In the wake of the amnesties, Lithuanian prestige suffered both abroad and in Klaipėda, allowing Germany to strengthen its influence in the region.

Question: How big was the region?
2,400 km²