| Kyonghung County | |
| Native Name Lang: | ko |
| Settlement Type: | County |
| Translit Lang1: | Korean |
| Translit Lang1 Type1: | Hanja |
| Translit Lang1 Info1: | 慶興郡 |
| Translit Lang1 Info2: | Kyŏnghŭng-gun |
| Translit Lang1 Info3: | Gyeongheung-gun |
| Subdivision Type: | Country |
| Subdivision Name: | North Korea |
| Subdivision Type1: | Province |
| Subdivision Name1: | North Hamgyong Province |
| Area Total Km2: | 920 |
| Population As Of: | 2008 census |
| Population Total: | 107,327 |
| Population Density Km2: | auto |
| Parts Type: | Administrative divisions |
| Parts: | 1 ŭp;, 3 workers' districts, 12 ri |
Kyŏnghŭng County is a kun, or county, in North Hamgyong province, North Korea. Formerly known as Ŭndŏk County, from 1977 to 2010.
The county borders the People's Republic of China to the northeast. Except for the southwest, it is dominated by low hills, with occasional plains. The highest point is Songjinsan, which is 1146m (3,760feet). The dominant river is the Tumen, which separates the county from China. The level ground along the Tumen is developed, but approximately 80% of the county is forested.
Mining, particularly coal mining, is the chief industry in Undok, where lignite is found; Undok is the site of the Aoji Coal Mine. In addition, farming and livestock raising are widespread. The chief crops are maize, rice, soybeans, and potatoes. The Aoji-ri Chemical Complex is located in the county as well.
Undok lies on the Hambuk Line and Hoeam Line railroads.
Under Joseon period "Kyunghung", the ancient name of Undok, was one of the six post/garrisons established under the order of King Sejong the Great of Joseon in 1433, to safeguard his people from the hostile Chinese and Manchurian nomads living in Manchuria.
Kyŏnghŭng County is divided into 1 town ("Ŭp") 12 villages ("Ri") and 3 worker's districts ("Rodongjagu").
| Chosŏn'gŭl | Hancha | ||
|---|---|---|---|
| Ŭndŏk-ŭp | 은덕읍 | 恩德邑 | |
| Myŏngryong-rodongjagu | 명룡노동자구 | 明龍勞動者區 | |
| Obong-rodongjagu | 오봉노동자구 | 梧鳳勞動者區 | |
| Ryongyŏl-lodongjagu | 룡연노동자구 | 龍淵勞動者區 | |
| Angil-li | 안길리 | 安吉里 | |
| Changp'yŏng-ri | 장평리 | 長坪里 | |
| Ch'ŏlju-ri | 철주리 | 鐵柱里 | |
| Haksong-ri | 학송리 | 鶴松里 | |
| Kŭmsong-ri | 금송리 | 金松里 | |
| Kwirang-ri | 귀락리 | 貴洛里 | |
| Myŏngdŏng-ri | 명덕리 | 明德里 | |
| Rokya-ri | 록야리 | 鹿野里 | |
| Sin'asal-li | 신아산리 | 新阿山里 | |
| Songhang-ri | 송학리 | 松鶴里 | |
| Songsal-li | 송산리 | 松山里 | |
| T'aeyang-ri | 태양리 | 太陽里 |
