Oranges grow primarily in tropical and subtropical regions around the world. They thrive in warm climates with moderate temperatures, ideally between 60°F and 90°F (15°C to 32°C), and require well-drained, fertile soils such as sandy loams or loams

. Key regions where oranges are grown include:

• The Americas: The United States (especially Florida, California, Texas, and Arizona) and Brazil are the leading producers globally. Brazil exports much of its production, while most U.S.-grown oranges are consumed domestically

• Mediterranean countries: Oranges are cultivated in northern and eastern Mediterranean areas, including Spain, southern France, and parts of the Middle East

• Asia: Oranges are native to tropical Asia and are grown widely throughout the continent

• Africa: Countries like South Africa, Egypt, and Morocco produce oranges commercially

• Other regions: Australia and some coastal areas of Europe (such as southern Spain, Montenegro, and Croatia) also grow oranges, though cultivation becomes less viable further north due to climate limitations

Oranges are generally grown in USDA hardiness zones 9 through 11, although with protection, some varieties can grow in zone 8

. They require a frost-free environment, as temperatures below about 28°F (-2.2°C) can damage fruit and trees

. In summary, oranges grow best in warm, subtropical to tropical climates with well-drained soils and adequate sunlight, spanning five continents including the Americas, Asia, Africa, Europe, and Australia