| 金阳县 | Jīn yáng xiàn | Jinyang county in Liangshan Yi autonomous prefecture 凉山彝族自治州, south Sichuan |
| 铅山县 | Qiān shān xiàn | Qianshan county in Shangrao 上饶, Jiangxi |
| 铜山县 | Tóng shān xiàn | Tongshan county in Xuzhou 徐州, Jiangsu |
| 铜梁县 | Tóng liáng xiàn | Tongliang suburban county in Chongqing municipality, formerly in Sichuan |
| 铜陵县 | Tóng líng xiàn | Tongling county in Tongling, Anhui |
| 铜鼓县 | Tóng gǔ xiàn | Tonggu county in Yichun 宜春, Jiangxi |
| 锦屏县 | Jǐn píng xiàn | Jinping county in Qiandongnan Miao and Dong autonomous prefecture 黔东南州, Guizhou |
| 锦县 | Jǐn xiàn | Jin county in Liaoning |
| 锦西县 | Jǐn xī xiàn | former Jinxi county, now part of Nanpiao district 南票 of Huludao city 葫芦岛市, Liaoning |
| 错那县 | Cuò nà xiàn | Cona county, Tibetan: Mtsho sna rdzong, in Lhokha prefecture 山南地区, Tibet |
| 镇原县 | Zhèn yuán xiàn | Zhenyuan county in Qingyang 庆阳, Gansu |
| 镇坪县 | Zhèn píng xiàn | Zhenping county in Ānkāng 安康, Shǎnxī |
| 镇安县 | Zhèn ān xiàn | Zhen'an county in Shāngluò 商洛, Shǎnxī |
镇宁布依族苗族自
治县 | Zhèn níng Bù yī zú Miáo zú zì zhì xiàn | Zhenning Buyei and Hmong autonomous county in Anshun 安顺, Guizhou |
| 镇宁县 | Zhèn níng xiàn | Zhenning Buyei and Hmong autonomous county in Anshun 安顺, Guizhou |
| 镇巴县 | Zhèn bā xiàn | Zhenba county in Hànzhōng 汉中, Shǎnxī |
| 镇平县 | Zhèn píng xiàn | Zhenping county in Nanyang 南阳, Henan |
| 镇康县 | Zhèn kāng xiàn | Zhenkang county in Lincang 临沧, Yunnan |
镇沅彝族哈尼族拉
祜族自治县 | Zhèn yuán Yí zú Hā ní zú Lā hù zú zì zhì xiàn | Zhenyuan Yi, Hani and Lahu autonomous county in Pu'er 普洱, Yunnan |
| 镇沅县 | Zhèn yuán xiàn | Zhenyuan Yi, Hani and Lahu autonomous county in Pu'er 普洱, Yunnan |
| 镇源县 | Zhèn yuán xiàn | Zhenyuan county in Yunnan |
| 镇赉县 | Zhèn lài xiàn | Zhenlai county in Baicheng 白城, Jilin |
| 镇远县 | Zhèn yuǎn xiàn | Zhenyuan county in Qiandongnan Miao and Dong autonomous prefecture 黔东南州, Guizhou |
| 镇雄县 | Zhèn xióng xiàn | Zhenxiong county in Zhaotong 昭通, Yunnan |
| 钟山县 | Zhōng shān xiàn | Zhongshan county in Hezhou 贺州, Guangxi |
| 钟祥县 | Zhōng xiáng xiàn | Zhongxiang county in Hubei |
| 铁岭县 | Tiě lǐng xiàn | Tieling county in Tieling 铁岭, Liaoning |
| 长垣县 | Cháng yuán xiàn | Changyuan county in Xinxiang 新乡, Henan |
| 长子县 | Cháng zǐ xiàn | Changzhi county in Changzhi 长治, Shanxi |
| 长宁县 | Cháng níng xiàn | Changning county in Yibin 宜宾, Sichuan |
| 长岛县 | Cháng dǎo xiàn | Changdao county in Yantai 烟台, Shandong |
| 长岭县 | Cháng lǐng xiàn | Changling county in Songyuan 松原, Jilin |
| 长掌义县龙 | cháng zhǎng Yì xiàn lóng | Yixianosaurus longimanus, theropod dinosaur from Yi county 义县, Jinzhou 锦州, west Liaoning |
| 长武县 | Cháng wǔ xiàn | Changwu county in Xiányáng 咸阳, Shǎnxī 陕西 |
| 长汀县 | Cháng tīng xiàn | Changting county in Longyan 龙岩, Fujian |
| 长沙县 | Cháng shā xiàn | Changsha county in Changsha 长沙, Hunan |
| 长治县 | Cháng zhì xiàn | Changzhi county in Changzhi 长治, Shanxi |
| 长泰县 | Cháng tài xiàn | Changtai county in Zhangzhou 漳州, Fujian |
| 长海县 | Cháng hǎi xiàn | Changhai county in Dalian 大连, Liaoning |
| 长白朝鲜族自治县 | Cháng bái cháo xiān zú zì zhì xiàn | Changbai Korean autonomous county in Baishan 白山, Jilin |
| 长白县 | Cháng bái xiàn | Changbai Korean autonomous county in Baishan 白山, Jilin |
| 长兴县 | Cháng xīng xiàn | Changxing county in Huzhou 湖州, Zhejiang |
| 长丰县 | Cháng fēng xiàn | Changfeng county in Hefei 合肥, Anhui |
| 长野县 | Cháng yě xiàn | Nagano prefecture, Japan |
| 长阳土家族自治县 | Cháng yáng Tǔ jiā zú zì zhì xiàn | Changyang Tujiazu autonomous county in Hubei |
| 长顺县 | Cháng shùn xiàn | Changshun county in Qiannan Buyei and Miao autonomous prefecture 黔南州, Guizhou |
| 门源回族自治县 | Mén yuán Huí zú zì zhì xiàn | Menyuan Hui autonomous county in Haibei Tibetan autonomous prefecture 海北藏族自治州, Qinghai |
| 门源县 | Mén yuán xiàn | Menyuan Hui autonomous county in Haibei Tibetan autonomous prefecture 海北藏族自治州, Qinghai |
| 开化县 | Kāi huà xiàn | Kaihua county in Quzhou 衢州, Zhejiang |
| 开原县 | Kāi yuán xiàn | Kaiyuan county in Tieling 铁岭, Liaoning |
