| Zagreb County Zagrebačka županija Zágráb vármegye  | 
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| County of the Kingdom of Croatia-Slavonia | |||||
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 Coat of arms  | 
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| Location of the County (yellow) within the Kingdom of Croatia-Slavonia (green) | |||||
| Capital | 
Zagreb 45°49′N 15°59′E / 45.817°N 15.983°ECoordinates: 45°49′N 15°59′E / 45.817°N 15.983°E  | 
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| History | |||||
| • | Established | 1840 | |||
| • | Treaty of Trianon | 4 June 1920 | |||
| Area | |||||
| • | 1910 | 7,210 km2(2,784 sq mi) | |||
| Population | |||||
| • | 1910 | 594,052 | |||
| Density | 82.4 /km2 (213.4 /sq mi) | ||||
| Today part of | 
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Coat of arms
Zagreb County (Croatian: Zagrebačka županija; Hungarian: Zágráb vármegye) was a historic administrative subdivision (županija) of the Kingdom of Croatia-Slavonia. Croatia-Slavonia was an autonomous kingdom within the Lands of the Crown of Saint Stephen (Transleithania), the Hungarian part of the dual Austro-Hungarian Empire. Its territory is now in northern Croatia. The capital of the county was Zagreb (Croatian, in Hungarian: Zágráb).
Zagreb County shared borders with the Austrian lands Styria, Carniola and Bosnia-Herzegovina and the counties of Varaždin County, Bjelovar-Križevci, Požega and Modruš-Rijeka (all in Croatia-Slavonia). The river Sava flows through the county. Its area was 7210 km² around 1910.