Largest municipalities by area

The 20 municipalities in Kumamoto Ken with the highest area, and the 20 with the lowest, out of 51 with a published figure.

	Municipality	Prefecture	Postal code	Area
1	Shimada	Kumamoto Ken	861-2224	315,880,000.0 km²
2	Kariya	Kumamoto Ken	861-3841	50,390,000.0 km²
3	Kumamoto Prefecture	Kumamoto Ken	861-4116	7,404.1 km²
4	Nagasaki Prefecture	Kumamoto Ken	861-3908	4,105.5 km²
5	Ōno-shi	Kumamoto Ken	861-3905	872.3 km²
6	Tōno-shi	Kumamoto Ken	861-4702	826.0 km²
7	Amakusa	Kumamoto Ken	863-0050	683.2 km²
8	Yatsushiro	Kumamoto Ken	866-8555	680.6 km²
9	Ōmachi-shi	Kumamoto Ken	861-4604	565.1 km²
10	Hirosaki	Kumamoto Ken	861-2236	524.2 km²
11	Toyotomi	Kumamoto Ken	861-4705	520.7 km²
12	Aso	Kumamoto Ken	869-2305	376.2 km²
13	Yamaga	Kumamoto Ken	861-0523	299.7 km²
14	Kikuchi	Kumamoto Ken	861-1673	276.9 km²
15	Yamada	Kumamoto Ken	861-3547	262.8 km²
16	Oga	Kumamoto Ken	861-4634	241.1 km²
17	Ashikita	Kumamoto Ken	869-5563	233.8 km²
18	Hitoyoshi	Kumamoto Ken	868-0056	210.6 km²
19	Ise	Kumamoto Ken	861-3937	208.3 km²
20	Kuma	Kumamoto Ken	868-0593	207.6 km²

Smallest municipalities by area

	Municipality	Prefecture	Postal code	Area
1	Itoda	Kumamoto Ken	861-3242	8.0 km²
2	Nagata-ku	Kumamoto Ken	861-3545	11.4 km²
3	Ōiso-machi	Kumamoto Ken	861-4701	17.2 km²
4	Yoshida	Kumamoto Ken	861-3245	20.7 km²
5	Kiyama	Kumamoto Ken	861-2242	22.1 km²
6	Yamato	Kumamoto Ken	861-3500	27.1 km²
7	Kamijima	Kumamoto Ken	861-3192	30.4 km²
8	Nakayama	Kumamoto Ken	861-4614	31.1 km²
9	Koga	Kumamoto Ken	861-4737	42.1 km²
10	Hara	Kumamoto Ken	861-3453	43.3 km²
11	Kōshi-shi	Kumamoto Ken	861-1113	53.2 km²
12	Arao	Kumamoto Ken	864-0033	57.1 km²
13	Kōsa-machi	Kumamoto Ken	861-4600	57.9 km²
14	Ohira	Kumamoto Ken	861-3811	60.3 km²
15	Kawaguchi	Kumamoto Ken	861-3813	62.0 km²
16	Shimoichi	Kumamoto Ken	861-3513	62.0 km²
17	Mashiki	Kumamoto Ken	861-2200	65.7 km²
18	Uto	Kumamoto Ken	869-0434	74.2 km²
19	Hirata	Kumamoto Ken	861-2212	93.4 km²
20	Naka	Kumamoto Ken	861-4417	97.8 km²

Largest municipalities by area — All of Japan

One row per municipalities. The figures are published by municipality, so every postal code inside one shares them; the postal code shown is one of that municipality's.