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Japan: Iwate

Iwate Prefecture

Prefecture

The population development of Iwate Prefecture according to census results.

Name	Abbr.	Status	Native	Capital	Area A-L (km²)	Population Census (Cf) 1995-10-01	Population Census (Cf) 2000-10-01	Population Census (Cf) 2005-10-01	Population Census (Cf) 2010-10-01	Population Census (Cf) 2015-10-01	Population Census (Cf) 2020-10-01	Population Census (Cp) 2025-10-01
Iwate	03	Pref	岩手県	Morioka	15,275	1,419,505	1,416,180	1,385,041	1,330,147	1,279,594	1,210,534	1,125,502	1527500	→
Japan	JPN		日本国	Tōkyō	377,980	125,570,246	126,925,843	127,767,994	128,057,352	127,094,745	126,146,099	123,049,524		→

Statistics Bureau Japan.

Major Cities

	Name	Population Census (Cp) 2025-10-01
1	Morioka	278,636
2	Ōshū	103,899
3	Ichinoseki	101,916
4	Kitakami	90,861
5	Hanamaki	87,272
6	Takizawa	53,740

Contents: Cities & Towns

The population of all cities and towns of Iwate Prefecture with more than 20,000 inhabitants according to census results.

Name	Status	Native	Population Census (Cf) 1995-10-01	Population Census (Cf) 2000-10-01	Population Census (Cf) 2005-10-01	Population Census (Cf) 2010-10-01	Population Census (Cf) 2015-10-01	Population Census (Cf) 2020-10-01	Population Census (Cp) 2025-10-01	Area
Hachimantai (Nishine)	City	八幡平市	32,751	32,485	31,079	28,680	26,355	24,023	22,058	86230	→
Hanamaki	City	花巻市	107,112	107,175	105,028	101,438	97,702	93,193	87,272	90839	→
Ichinoseki	City	一関市	143,974	140,825	135,722	127,642	121,583	111,932	101,916	125642	→
Kamaishi	City	釜石市	49,447	46,521	42,987	39,574	36,802	32,078	28,012	44035	→
Kitakami	City	北上市	87,969	91,501	94,321	93,138	93,511	93,045	90,861	43755	→
Kuji	City	久慈市	41,225	40,178	39,141	36,872	35,642	33,043	29,645	62350	→
Miyako	City	宮古市	69,587	66,986	63,588	59,430	56,676	50,369	44,277	125918	→
Morioka	City	盛岡市	300,723	302,857	300,746	298,348	297,631	289,731	278,636	88647	→
Ninohe	City	二戸市	33,755	33,102	31,477	29,702	27,611	25,513	22,999	42042	→
Ōfunato	City	大船渡市	46,277	45,160	43,331	40,737	38,058	34,728	30,606	32251	→
Ōshū (Mizusawa - Esashi)	City	奥州市	133,228	133,056	130,171	124,746	119,422	112,937	103,899	99330	→
Rikuzentakata	City	陸前高田市	26,129	25,676	24,709	23,300	19,758	18,262	16,418	23194	→
Shiwa	Town	紫波町	31,311	33,038	33,692	33,288	32,614	32,147	31,470	23898	→
Takizawa	City	滝沢市	44,189	51,241	53,560	53,857	55,463	55,579	53,740	18246	→
Tōno	City	遠野市	33,898	33,108	31,402	29,331	28,062	25,366	22,653	82597	→
Yahaba	Town	矢巾町	21,919	25,268	27,085	27,205	27,678	28,056	27,004	6732	→
Yamada	Town	山田町	22,019	21,214	20,142	18,617	15,826	14,320	12,689	26281	→

Statistics Bureau Japan.

Population Structure

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

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