Yà Âmju County is a kun, or county, in northwestern North P'yà Ângan province, North Korea, on the coast of the Yellow Sea. It is bordered by Ryongch'à Ân and P'ihyà Ân to the north, Tongrim to the east, and Ch'à Âlsan to the south; to the west lies the ocean. The county was created in 1952 from portions of Ch'à Âlsan and Ryongch'à Ân.
The terrain of Yà Âmju is mostly level or rolling, sloping upward from the southwest to the northeast. In the north and east are small mountains like Mangilsan (613 m). The islands of the Pansà Âng archipelago lie offshore and are a noted regional attraction. Other islands include Taedasado and Changdo.
YÃ Âmju county is divided into 1 Ã Âp (town), 1 rodongjagu (workers' district) and 22 ri (villages):
Although warmed somewhat by the sea, the local climate remains basically continental, with an average annual temperature of 8.4 ðC reflecting the fluctuation between January's -8.7 ðC and August's 24 ðC. Annual rainfall is relatively low, 800âÂÂ1000 mm.
Due to the level terrain, 54.4% of the land in Yà Âmju is cultivated, with only 15% remaining as forestland (mostly pine). The county is North P'yà Ângan's second-largest producer of rice; other local crops include soybeans, maize, tobacco, and fruit. Fishing and livestock raising are also important local industries, as is salt harvesting. Yà Âmju produces enough salt to satisfy 10% of national demand. A large aquaculture installation also operates in the county, dating from the early 1980s; it is reported to cover more than 1 kmò, with more than 80 separate ponds.
Yà Âmju county is served by the P'yà Ângà Âi, Tasado and Paengma lines of the Korean State Railway.
A large rock in Namap-ri has been designated North Korean natural monument No. 64.