iPhones are made in China, but I guess some people consider them to be junk.
Apple is a multinational cooperation, that means it carries out and supervises operation and production in at least one country apart from its home country. It is registered in California but the process of producing its products take place in different countries.
There are two main processes to the making of a phone; the assembling and manufacturing, I may also add the designing process to make it three as it's a key process;
Companies like Apple outsource for components of their products from foreign manufacturers, they get their screen, battery and camera all from different countries. Their suppliers also change with new designs.
The assembling is also outsourced and takes place in different factories, most of which are located in China. One of such factories in Zhengzhou has been renamed 'iPhone City' by the locals and employs hundreds of thousands of workers daily.
The pack of the product would usually say that it was designed in California, so I would assume that here is where the blueprint for the products come from and it coordinates the other processes.
China may be involved in a part of the manufacturing and a bulk of the assembling due to cheaper and available labour, but iPhones are technically not made there.