| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Jen-feng-chuang | city | Tianjin Shi | China | 39.3113889 | 117.6622222 | 26 | 28494 |
| Jiajiawa | city | Tianjin Shi | China | 38.9197222 | 117.3708333 | 13 | 34371 |
| Jiakou | city | Tianjin Shi | China | 38.95 | 116.85 | 55 | 40290 |
| Jiangwakou | city | Tianjin Shi | China | 39.5225 | 117.7025 | 22 | 36228 |
| Jianhe | city | Tianjin Shi | China | 39.2333333 | 118.05 | 29 | 30816 |
| Jianming | city | Tianjin Shi | China | 38.9955556 | 117.3111111 | 16 | 38673 |
| Jingangcun | city | Tianjin Shi | China | 38.6872222 | 117.3030556 | 13 | 34424 |
| Jinghai | city | Tianjin Shi | China | 38.9333333 | 116.9166667 | 29 | 40290 |
| Jinjiazhuang | city | Tianjin Shi | China | 38.9333333 | 117.0166667 | 13 | 40381 |
| Jinnanqu | city | Tianjin Shi | China | 38.9916667 | 117.3844444 | 16 | 36068 |
| Jiubaihu | city | Tianjin Shi | China | 40.080556 | 117.5266667 | 213 | 57399 |
| Jiudaogou | city | Tianjin Shi | China | 38.9555556 | 117.515 | 19 | 48196 |
| Jiuninghe | city | Tianjin Shi | China | 39.4619444 | 117.7625 | 6 | 28427 |
| Jiuwangzhuang | city | Tianjin Shi | China | 39.75 | 117.4 | 39 | 49979 |
| Jiuwuqing | city | Tianjin Shi | China | 39.5208333 | 116.8647222 | 13 | 63730 |
| Jiuxian | city | Tianjin Shi | China | 39.5075 | 116.935 | 13 | 62419 |
| Jiuyijiu | city | Tianjin Shi | China | 39.1166667 | 117.0666667 | 9 | 105110 |
| Jiuyijiu Nongchang | city | Tianjin Shi | China | 39.1666667 | 117.0833333 | 9 | 229621 |
| Jixian | city | Tianjin Shi | China | 40.05 | 117.4 | 101 | 57398 |
| Jiyudian | city | Tianjin Shi | China | 39.3666667 | 117.4166667 | 9 | 37895 |
| Jizhuangzi | city | Tianjin Shi | China | 39.0675 | 117.1755556 | 9 | 1240852 |
| Jugezhuang | city | Tianjin Shi | China | 38.9766667 | 117.3141667 | 13 | 38673 |
| Junliangcheng | city | Tianjin Shi | China | 39.0616667 | 117.445 | 9 | 69789 |
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