Dianjiang County was developed in the time of the Western Wei Emperor Gong Di in 555 CE. Before the Chongqing area became a municipality, Dianjiang belonged to other regions. From October 1, 1949, to March 14, 1997, it belonged to Dazhu, Fuling prefecture.
Based on statistics from October 2015, in the first three quarters, Dianjiang County achieved a GDP of 16.63 billion yuan (an increase of 11.4 percent, and faster than the growth in the previous six months by 0.4 percentage points). The contributions to the GDP were composed of the primary sector producing 2.17 billion yuan (an increase of 4.5%); the secondary sector producing 8.78 billion yuan (an increase of 12.6%); and the tertiary sector producing 5.68 billion yuan (an increase of 12.2%).