Japan: Iwate

flag Contents: Iwate (Prefecture)

Capital: Morioka

1,210,534 Population [2020] – census

1,125,502 Population [2025] – census

15,275km² Area

73.68/km² Density [2025]

Prefecture

The population of Iwate prefecture.

Name	Native	Status	Population Census 1995-10-01	Population Census 2000-10-01	Population Census 2005-10-01	Population Census 2010-10-01	Population Census 2015-10-01	Population Census 2020-10-01	Population Census 2025-10-01
Iwate	岩手県	Prefecture	1,419,505	1,416,180	1,385,041	1,330,147	1,279,594	1,210,534	1,125,502

Contents: Cities, Towns and Villages

The population of all cities, towns and villages in Iwate prefecture.

The Details icon links to further information about a selected place including its population structure (gender, age groups, age distribution, citizenship).

Name	Native	Status	Population Census 1995-10-01	Population Census 2000-10-01	Population Census 2005-10-01	Population Census 2010-10-01	Population Census 2015-10-01	Population Census 2020-10-01	Population Census 2025-10-01
Fudai	普代村	Village (-mura)	3,796	3,583	3,358	3,088	2,795	2,487	2,132	→
Hachimantai	八幡平市	City (-shi)	32,751	32,485	31,079	28,680	26,355	24,023	22,058	→
Hanamaki	花巻市	City (-shi)	107,112	107,175	105,028	101,438	97,702	93,193	87,272	→
Hiraizumi	平泉町	Town (-chō)	9,288	9,054	8,819	8,345	7,868	7,252	6,426	→
Hirono	洋野町	Town (-chō)	21,322	20,465	19,524	17,913	16,693	15,091	13,415	→
Ichinohe	一戸町	Town (-machi)	17,906	16,933	15,549	14,187	12,919	11,494	10,015	→
Ichinoseki	一関市	City (-shi)	143,974	140,825	135,722	127,642	121,583	111,932	101,916	→
Iwaizumi	岩泉町	Town (-chō)	13,879	12,845	11,914	10,804	9,841	8,726	7,429	→
Iwate	岩手町	Town (-machi)	18,264	17,372	16,254	14,984	13,692	12,285	10,662	→
Kamaishi	釜石市	City (-shi)	49,447	46,521	42,987	39,574	36,802	32,078	28,012	→
Kanegasaki	金ケ崎町	Town (-chō)	15,923	16,383	16,396	16,325	15,895	15,535	15,129	→
Karumai	軽米町	Town (-machi)	12,290	11,863	10,997	10,209	9,333	8,421	7,414	→
Kitakami	北上市	City (-shi)	87,969	91,501	94,321	93,138	93,511	93,045	90,861	→
Kuji	久慈市	City (-shi)	41,225	40,178	39,141	36,872	35,642	33,043	29,645	→
Kunohe	九戸村	Village (-mura)	7,727	7,324	6,974	6,507	5,865	5,378	4,717	→
Kuzumaki	葛巻町	Town (-machi)	9,536	8,725	8,021	7,304	6,344	5,634	4,880	→
Miyako	宮古市	City (-shi)	69,587	66,986	63,588	59,430	56,676	50,369	44,277	→
Morioka	盛岡市	City (-shi)	300,723	302,857	300,746	298,348	297,631	289,731	278,636	→
Ninohe	二戸市	City (-shi)	33,755	33,102	31,477	29,702	27,611	25,513	22,999	→
Nishiwaga	西和賀町	Town (-machi)	8,594	7,983	7,375	6,602	5,880	5,134	4,354	→
Noda	野田村	Village (-mura)	5,204	5,195	5,019	4,632	4,149	3,936	3,613	→
Ōfunato	大船渡市	City (-shi)	46,277	45,160	43,331	40,737	38,058	34,728	30,606	→
Ōshū	奥州市	City (-shi)	133,228	133,056	130,171	124,746	119,422	112,937	103,899	→
Ōtsuchi	大槌町	Town (-chō)	18,301	17,480	16,516	15,276	11,759	11,004	9,870	→
Rikuzentakata	陸前高田市	City (-shi)	26,129	25,676	24,709	23,300	19,758	18,262	16,418	→
Shiwa	紫波町	Town (-chō)	31,311	33,038	33,692	33,288	32,614	32,147	31,470	→
Shizukuishi	雫石町	Town (-chō)	19,373	19,750	19,055	18,033	16,981	15,731	14,274	→
Sumita	住田町	Town (-chō)	7,783	7,305	6,848	6,190	5,720	5,045	4,337	→
Takizawa	滝沢市	City (-shi)	44,189	51,241	53,560	53,857	55,463	55,579	53,740	→
Tanohata	田野畑村	Village (-mura)	4,806	4,529	4,241	3,843	3,466	3,059	2,680	→
Tōno	遠野市	City (-shi)	33,898	33,108	31,402	29,331	28,062	25,366	22,653	→
Yahaba	矢巾町	Town (-chō)	21,919	25,268	27,085	27,205	27,678	28,056	27,004	→
Yamada	山田町	Town (-machi)	22,019	21,214	20,142	18,617	15,826	14,320	12,689	→

Source: Statistics Bureau Japan.

Explanation: The 2025 census results are preliminary.

Further information about the population structure:

Gender (C 2025)
Males	543,567
Females	581,935

Age Groups (C 2020)
0-17 years	166,827
18-64 years	624,436
65+ years	404,359

Age Distribution (C 2020)
90+ years	31,200
80-89 years	111,810
70-79 years	165,294
60-69 years	181,396
50-59 years	156,029
40-49 years	157,032
30-39 years	117,924
20-29 years	90,037
10-19 years	102,465
0-9 years	82,435

Citizenship (C 2020)
Japan	1,194,745
Foreign Citizenship	6,937