LEGO bricks are manufactured in several factories around the world to serve different markets efficiently. The main production facilities are located in:

• Billund, Denmark (the original and main factory, producing about 20 billion bricks annually)

• Nyíregyháza, Hungary (a large factory specializing also in DUPLO blocks)

• Monterrey, Mexico (serving North and South American markets)

• Jiaxing, China (serving the Asian market, opened in 2016)

• Kladno, Czech Republic (primarily for brick decoration and packaging)

Additionally, LEGO has recently opened a factory in Vietnam (its most environmentally sustainable to date) and is building a new carbon-neutral factory near Richmond, Virginia, USA, expected to be completed in 2025 to serve the North American market

. These factories use high-precision plastic injection molding to produce LEGO bricks with an accuracy of 0.005 mm, ensuring compatibility and quality across all products

. In summary, LEGO bricks are primarily made in Denmark, Hungary, Mexico, China, the Czech Republic, Vietnam, and soon the USA, reflecting LEGO's global manufacturing strategy to meet demand worldwide efficiently