Krnsko is a municipality and village in Mladá Boleslav District in the Central Bohemian Region of the Czech Republic. It has about 600 inhabitants.
Krnsko consists of two municipal parts (in brackets population according to the 2021 census):
The suffix -sko indicates that the village was founded on the site of another village and took its name. Krnsko was founded on the site of the abandoned village of KrnÃÂn.
Krnsko is located about southwest of Mladá Boleslav and northeast of Prague. It lies in the Jizera Table. The municipality is situated on the right bank of the Jizera River.
The first written mention of Krnsko is from 1360. Ã Âehnice was first mentioned in 1319.
The I/16 road, which connects the D10 motorway with MÃÂlnÃÂk, briefly crosses the municipality.
Krnsko is located on the railway line PragueâÂÂMladá Boleslav.
The railway bridge in Krnsko, Stránovský viaduct, was built in 1924 and has been protected as a technical monument. The length of the bridge is and the maximum height above the lowest point of the bridge is up to .