In the year T'ai-k'ang 1, the first year of the Emperor Wu-ti of the Western Chin Dynasty (280 A.D.) after the pacification of Chiang-nan and the unification of the Empire, there were a total of nineteen chou (州 province) established and one-hundred and seventy-three chün-kuo (郡 國 prefectures and kingdoms), later there were nineteen prefectures/kingdoms added for a total of one-hundred and ninety-two. Later in the reign of Hui-ti the administration of Chiang-chou was set up in the area of Chiang-nan, and then in the reign of Huai-ti a portion of Chiang-chou was split off to form Hsiang-chou for a total of twenty-one provinces.
| Name of Chou | Prefectures and Kingdoms | Notes |
| Szu-chou 司州 | from Lo-yang (洛陽) ruled 12 prefectures Ho-nan (河南), Ying-yang (熒陽), Hung-nung (弘農), Shang-lo (上洛), P'ing-yang (平陽), Ho-tung (河東), Chi-chün (汲郡), Kuang-p'ing (廣平), Yang-p'ing (陽平), Wei-chün (魏郡), Tun-ch'iu (頓丘), Ho-nei (河內) |
After the Yung-chia period, Ssu-chou was lost to Liu Ts'ung. |
| Yen-chou 兗州 | from Lin-ch'iu (廩丘) ruled 7 prefectures and kingdoms Ch'en-liu Kuo (陳留國), Pu-yang Kuo (濮陽國), Chi-yang (濟陽), Kao-p'ing Kuo (高平國), Tung-p'ing Kuo (東平國), Chi-pei Kuo (濟北國), T'ai-shan (泰山) |
Late in the reign of Hui-ti, Yen-chou was lost to Shih Le. |
| Yü-chou (豫州) | from Hsiang-ch'eng (項城) ruled 13 prefectures and kingdoms Ying-ch'uan ( 穎川 ), Ju-nan (汝南), P'ei Kuo (沛國), Lu-chün (魯郡), Ch'iao-chün (譙郡), Ju-yin (汝陰), An-feng (安豐), I-yang (弋陽), Hsiang-ch'eng (襄城), Liang Kuo (粱國), Hsin-ch'a (新察), Ch'en-chün (陳郡), Nan-tun (南頓) |
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| Chi-chou (冀州) | from Fang-tzu (房子) ruled 13 prefectures and kingdoms Chao Kuo, (趙國), Chü-lü Kuo (鉅鹿國), An-p'ing Kuo (安平國), P'ing-yuan Kuo (平原國), Yueh-ling Kuo (樂陵國), Po-hai Kuo (渤海國), Chang-wu Kuo (章武國), Ho-chien Kuo (河間國), Kao-yang Kuo (高陽國), Po-ling Kuo (博陵國), Ch'ing-ho Kuo (清河國), Chung-shan Kuo (中山國), Ch'ang-shan Kuo (常山國) |
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| Yu-chou (幽州) | from Chuo-ch'eng (涿城) ruled 7 prefectures and kingdoms Fan-yang Kuo (范陽國), Yen Kuo (燕國), Pei-p'ing (北平), Shang-ku (上谷), Kuang-ning (廣寧), Tai-chün (代郡), Liao-hsi (遼西) |
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| P'ing-chou (平州) | from Ch'ang-li (昌黎) ruled 5 prefectures and kingdoms Ch'ang-li (昌黎), Liao-tung Kuo (遼東國), Yueh-lang (樂浪), Hsüan-t'u (玄菟), Tai-fang (帶方). |
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| Ping-chou (并州) | from Chin-yang (晉陽) ruled 6 prefectures and kingdoms T'ai-yuan Kuo (太原國), Shang-tang (上黨), Hsi-ho (西河), Yueh-p'ing (樂平), Yen-men (雁門), Hsin-hsing (新興) |
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| Yung-chou (雍州) | from Ching-chao (京兆) ruled 7 prefectures Ching-chao (京兆), Feng-i (馮翊), Fu-feng (扶風), An-ting (安定), Pei-ti (北地), Shih-p'ing (始平), Hsin-p'ing (新平) |
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| Liang-chou (涼州) | from Wu-wei (武威) ruled 9 prefectures Wu-wei (武威), Chin-ch'eng (金城), Hsi-p'ing (西平), Chang-i (張掖), Hsi-chün (西郡), Chiu-ch'üan, (酒泉) Tun-huang (敦煌), Hsi-hai (西海), Chin-ch'ang (晉昌) |
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| Ch'in-chou (秦州) | from Shang-kuei (上邽) ruled 7 prefectures Lung-hsi (隴西), Nan-an (南安), T'ien-shui (天水), Lüeh-yang (略陽), Wu-tu (武都), Yin-p'ing (陰平), Ti-tao (狄道) |
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| Liang-chou (粱州) | from Nan-cheng (南鄭) ruled 11 prefectures Han-chung (漢中), Tzu-t'ung (梓潼), Kuang-han (廣漢), Fu-ling (涪陵), Pa-ling (巴陵), Pa-hsi (巴西), Pa-tung (巴東), Tang-ch'ü (宕渠), Hsin-ch'eng (新城), Wei-hsing (魏興), Shang-yung (上庸) |
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| I-chou (益州) | from Ch'eng-tu (成都) ruled 8 prefectures Shu-chün (蜀郡), Chien-wei (犍為), Wen-shan (汶山), Han-chia (漢嘉), Chiang-yang (江陽), Chu-t'i (朱提), Yueh-hsi (越嶲), Tsang-ke (牂牁) |
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| Ning-chou (寧州) | from Yün-nan (雲南) ruled 5 prefectures Yün-nan (雲南), Hsing-ku (興古), Chien-ning (建寧), Yung-ch'ang (永昌), Chin-ning (晉寧) |
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| Ch'ing-chou 青州 | from Lin-tzu (臨淄) ruled 8 prefectures Ch'i Kuo (齊國), Chi-nan (濟南), Yüeh-an (樂安), Ch'eng-yang (城陽), Tung-lai (東萊), Chang-kuang (長廣), P'ing-ch'ang, (平昌) Kao-mi Kuo (高密國) |
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| Hsü-chou (徐州) | from P'eng-ch'eng (彭城) ruled 11 prefectures and kingdoms P'eng-ch'eng Kuo (彭城國), Hsia-p'ei Kuo (下邳國), P'ing-yang (平陽), Lang-yeh (琅邪), Tung-kuan (東莞), Kuang-ling (廣陵), Lin-huai (臨淮), Lan-ling (蘭陵), Tung-an (東安), Huai-ling (淮陵), T'ang-i (堂邑) |
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| Yang-chou (揚州) | from Shou-ch'ün (壽春) later moved to Chien-yeh (建業) ruled 13 prefectures Tan-yang (丹陽), Hsüan-ch'eng (宣城), Huai-nan (淮南), Lu-chiang (廬江), Chin-ling (晉陵), Wu-chün (吳郡), Wu-hsing (吳興), Hui-chi (會稽), Tung-yang (東陽), Hsin-an (新安), Lin-hai (臨海), Li-yang (歷陽), I-hsing (義興) |
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| Chiang-chou (江州) | from Yü-chang (豫章) ruled 11 prefectures Yü-chang (豫章), P'o-yang (鄱陽), Lu-ling (廬陵), Lin-ch'uan (臨川), Nan-k'ang (南康), Chien-an (建安), Chin-an (晉安), Wu-ch'ang (武昌), Kuei-yang (桂陽), An-ch'eng (安成), Hsün-yang (尋陽) |
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| Ching-chou (荆州) | from Hsiang-yang (襄陽) later moved to Chiang-ling (江陵)ruled 14 prefectures and kingdoms Chiang-hsia (江夏), Nan-chün (南郡), Hsiang-yang (襄陽), Nan-yang Kuo (南陽國), Hsün-yang (順陽), I-yang (義陽), Chien-p'ing (建平), Hsüan-tu (宣都), Nan-p'ing (南平), Wu-ling (武陵), T'ien-men (天門), Sui-tu (隋都), Hsin-yeh (新野), Ching-ling (竟陵) |
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| Hsiang-chou (湘州) | from Lin-hsiang (臨湘) ruled 9 prefectures Chang-sha (長沙), Heng-yang (衡陽), Hsiang-tung (湘東), Ling-ling (零陵), Shao-ling (邵陵), Kuei-yang (桂陽), Lin-chia (臨嘉), Shih-hsing (始興), Shih-an (始安) |
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| Chiao-chou (交州) | from Lung-pien (龍編) ruled 7 prefectures Ho-p'u (合浦), Chiao-chih (交阯), Hsin-ch'ang (新昌), Wu-p'ing (武平), Chiu-chen (九眞), Chiu-te (九德), Jih-nan (日南) |
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| Kuang-chou (廣州) | from P'an-yü (番禺) ruled 7 prefectures Nan-hai (南海), Ts'ang-wu (蒼梧), Yü-lin (鬱林), Kuei-lin (桂林), Kao-liang (高涼), Ning-p'u (寧浦), Kao-hsing (高興) |
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