There are 12 Federal Reserve Districts (FRD) in US with one Federal Reserve Bank per district.

在美国有12个联邦储备区，每个区都设有一个联邦储备银行。

youdao

There are twelve Federal Reserve Districts divided among the whole country, and each one of which has a Federal Reserve Bank in a major city.

整个国家被划分为12 个联邦储备区，在每一区内的一座重要城市里设有一个联邦储备银行。

youdao

So that's the Federal Reserve System. Incidentally there are twelve Banks and there are twelve districts.

所以，这就是联邦储备金系统，顺便提一句，这里说道有十二个银行和十二个区域。

youdao

So that's the Federal Reserve System. Incidentally there are twelve banks and there are twelve districts.

所以，这就是联邦储备金系统，顺便提一句,这里说道有十二个银行和十二个区域。

耶鲁公开课 - 金融市场课程节选

The survey of the 12 Federal Reserve Districts said there had been a modest rise in retail sales.

BBC: US Fed's Beige Book says economy seeing modest growth

That sentiment was echoed in the Federal Reserve's beige book, an anecdotal summary of economic conditions across the central bank's 12 regional districts.

WSJ: Retail Sales Increase