Liberec District (Czech: okres Liberec) is a district in the Liberec Region of the Czech Republic. Its capital is the city of Liberec.

Liberec District is divided into three administrative districts of municipalities with extended competence: Liberec, Frýdlant and Turnov. The town of Turnov is located in the neighbouring Semily District and it is the only such administrative district in the country whose borders do not correspond to the borders of the district.

Cities and towns are marked in bold and market towns in italics:

Bílá - Bílý Kostel nad Nisou - Bílý Potok - Bulovka - Černousy - Český Dub - Cetenov - Chotyně - Chrastava - Čtveřín - Dětřichov - Dlouhý Most - Dolní Řasnice - Frýdlant - Habartice - Hejnice - Heřmanice - Hlavice - Hodkovice nad Mohelkou - Horní Řasnice - Hrádek nad Nisou - Jablonné v Podještědí - Janovice v Podještědí - Janův Důl - Jeřmanice - Jindřichovice pod Smrkem - Kobyly - Krásný Les - Křižany - Kryštofovo Údolí - Kunratice - Lázně Libverda - Lažany - Liberec - Mníšek - Nová Ves - Nové Město pod Smrkem - Oldřichov v Hájích - Osečná - Paceřice - Pěnčín - Pertoltice - Příšovice - Proseč pod Ještědem - Radimovice - Raspenava - Rynoltice - Šimonovice - Soběslavice - Stráž nad Nisou - Světlá pod Ještědem - Svijanský Újezd - Svijany - Sychrov - Višňová - Vlastibořice - Všelibice - Žďárek - Zdislava

Liberec District borders Poland in the north and briefly Germany in the northwest. The terrain is very diverse, with large differences in altitude, and hilly landscape prevails. The territory extends into seven geomorphological mesoregions: Frýdlant Hills (north), Jizera Mountains (east), Zittau Basin (centre), Ještěd–Kozákov Ridge (a strip from centre to southeast), Jičín Uplands (south), Ralsko Uplands (southwest) and Lusatian Mountains (a small part in the west). The highest point of the district is the mountain Smrk in Lázně Libverda with an elevation of 1,124 m (3,688 ft), the most dominant feature of the southern part of the district is Ještěd at 1,012 m (3,320 ft). The lowest point is the river bed of the Smědá in Černousy at 210 m (690 ft).

From the total district area of 989.3 km (382.0 sq mi), agricultural land occupies 465.4 km (179.7 sq mi), forests occupy 421.3 km (162.7 sq mi), and water area occupies 9.8 km (3.8 sq mi). Forests cover 42.6% of the district's area.

Several notable rivers originate in the territory. The Lusatian Neisse and Smědá drain water into the Baltic Sea, and the Ploučnice and Jizera drain water into the North Sea. The area is poor in bodies of water.

The Jizerské hory Protected Landscape Area is located in the east of the district. It includes the Czech part of the UNESCO World Heritage Site named Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe. The second protected landscape area in the territory is Lužické hory, situated in the west.

Historical population

Year Pop. ±% 1869 165,637 —     1880 177,893 +7.4% 1890 186,668 +4.9% 1900 203,000 +8.7% 1910 214,009 +5.4%	Year Pop. ±% 1921 196,426 −8.2% 1930 205,822 +4.8% 1950 135,713 −34.1% 1961 145,399 +7.1% 1970 148,250 +2.0%	Year Pop. ±% 1980 161,289 +8.8% 1991 163,107 +1.1% 2001 162,780 −0.2% 2011 169,878 +4.4% 2021 174,225 +2.6%
Source: Censuses

Name	Population	Area (km)
Liberec	107,982	106
Hrádek nad Nisou	7,932	49
Frýdlant	7,388	32
Chrastava	6,340	27
Nové Město pod Smrkem	3,757	29
Jablonné v Podještědí	3,741	58
Hodkovice nad Mohelkou	3,002	13
Český Dub	2,923	23
Raspenava	2,849	41
Hejnice	2,792	38

The largest employers with headquarters in Liberec District and at least 1,000 employees are:

Economic entity	Location	Number of employees	Main activity
Regional Hospital Liberec	Liberec	4,000–4,999	Health care
Denso Manufacturing	Liberec	2,000–2,499	Automotive industry
Magna Exteriors (Bohemia)	Liberec	1,500–1,999	Automotive industry
Regional Police Directorate of the Liberec Region	Liberec	1,500–1,999	Public administration
Benteler ČR	Chrastava	1,000–1,499	Automotive industry
Drylock Technologies	Hrádek nad Nisou	1,000–1,499	Manufacture of hygiene needs
Technical University of Liberec	Liberec	1,000–1,499	Education
Webasto Roof & Components Czech Republic	Liberec	1,000–1,499	Automotive industry

A short section of the D10 motorway from Prague, which further continues as the R/35 expressway to Liberec and Chrastava (part of the European route E442) and then forks to the I/13 road to Děčín and to the I/35 road to Zittau, runs through the district. A section of the I/35 road runs from Liberec to Frýdlant and the Czech-Polish border.

The most important monuments in the district, protected as national cultural monuments, are:

• Sychrov Castle
• Lemberk Castle
• Frýdlant Castle
• Ještěd Tower
• Grabštejn Castle
• Basilica of Saints Lawrence and Zdislava in Jablonné v Podještědí
• Pilgrimage complex with the Church of the Visitation in Hejnice
• Liberec City Hall

The best-preserved settlements and landscapes, protected as monument zones, are:

The most visited tourist destinations are the Liberec Zoo, iQ Landia science centre in Liberec, DinoPark Liberec, Centrum Babylon Liberec, and Sychrov Castle.

• Liberec District – profile on the Czech Statistical Office website