Hekou District, under the Dongying City, Shandong Province. Located in the north of Shandong Province, the Yellow River north of the estuary, the territory is typical of the Yellow River delta geomorphology, the terrain is high in the south and low in the north, high in the west and low in the east, for the warm-temperate monsoon continental climate; jurisdiction of two streets, four towns, with a total area of 2,267.44 square kilometers. According to the seventh census data, as of zero hour on November 1, 2020, Hekou District resident population of 197,648 people. In 2020, Hekou District realized a gross domestic product of 19.053 billion yuan, a year-on-year increase of 7.0%. Among them, the primary industry realized added value of 2.480 billion yuan, an increase of 4.2%; the secondary industry realized added value of 8.655 billion yuan, an increase of 10.9%; the tertiary industry realized added value of 7.918 billion yuan, an increase of 3.1%. The proportion of tertiary industry was structurally adjusted to 13.0:45.4:41.6.