The geography of US exports is heavily concentrated in a handful of large industrial and logistics states. Texas leads by a wide margin because energy, chemicals, machinery, electronics and trade with Mexico all pass through its economy and ports.

California combines technology, machinery, agriculture and transportation equipment, while states such as Louisiana, New York, Illinois, Michigan, Washington and South Carolina appear prominently for very different reasons.

The measurement has an important caveat

Census state export statistics use an origin-of-movement concept. That identifies the state where merchandise begins its export journey, which is not always the same place where the product was manufactured.

A shipment produced inland can therefore be attributed differently depending on logistics and documentation. The data are still valuable, but they are best interpreted as a map of export movement rather than a perfect measure of local production.

Industry mix explains the ranking

Texas benefits from petroleum and chemicals as well as manufactured goods. Washington's exports can move sharply with aircraft deliveries. Louisiana is exposed to energy and chemicals, while Michigan is tied closely to vehicles and North American supply chains.

That makes annual growth rates volatile. A commodity-price swing or a few large aircraft deliveries can move a state's export value without a comparable change in employment.

Mexico and Canada shape state trade

For many manufacturing states, North American trade matters more than distant markets. Components can cross borders several times before a finished vehicle or machine reaches a customer.

Companies evaluating export markets should therefore look at destinations and product categories alongside the headline state total. A state can be a major exporter because of one specialised corridor rather than broad international exposure.