Iwate population pyramid 2020

Name: Population of Iwate by sex and five-year age group, 2020–2050
Creator: National Institute of Population and Social Security Research

Census

◀2020▶

Population: 1.2 million
Aged 0–14: 11.0%
Aged 15–64: 55.4%
Aged 65+: 33.6%
Aged 75+: 17.8%
vs 2020: +0.0%

Population by sex and five-year age group (men left, women right). The axis is fixed across 2020–2050 so years can be compared.

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<iframe src="https://pyramid.0xkaz.com/embed/jp/03/2020" title="Iwateの人口ピラミッド（2020年）" loading="lazy" style="width:100%;max-width:720px;aspect-ratio:720/615;border:0"></iframe>
<p><a href="https://pyramid.0xkaz.com/jp/03/2020">Iwateの人口ピラミッド（2020年）</a></p>

Population by sex and age group, 2020–2050 (CSV)

Data may be reused with attribution to the original sources (UN, World Bank, etc.).

Iwate at a glance

In 2020 the population of Iwate was 1.2 million: 11.0% aged 0–14, 55.4% aged 15–64 and 33.6% aged 65 and over (17.8% aged 75+).

From 1.2 million in 2020 it is projected to shrink by 35.3% to 783,242 in 2050; the share aged 65+ rises from 33.6% to 45.9%.

Among the 47 prefectures, it ranks 16th smallest by population in 2020, 3rd largest by the size of the decline from 2020 to 2050, and 3rd highest by the share aged 65+ in 2050.

The future of Iwate, compared

	2020	2050	Change	65+ (2020)	65+ (2050)	0–14 (2050)
Iwate	1.2 million	783,242	-35.3%	33.6%	45.9%	8.0%
Japan	126.1 million	104.7 million	-17.0%	28.6%	37.1%	9.9%

Trends 2020–2050

Population

Share aged 65+ (%)

Municipalities of Iwate

Municipality pages are in Japanese.

Municipality	2020	2050	Change	65+ (2050)
盛岡市	289,731	225,333	-22.2%	40.8%
宮古市	50,369	26,633	-47.1%	49.4%
大船渡市	34,728	19,269	-44.5%	50.6%
花巻市	93,193	60,720	-34.8%	46.4%
北上市	93,045	73,928	-20.5%	40.7%
久慈市	33,043	17,896	-45.8%	54.0%
遠野市	25,366	13,201	-48.0%	53.8%
一関市	111,932	61,196	-45.3%	51.7%
陸前高田市	18,262	9,617	-47.3%	55.1%
釜石市	32,078	16,363	-49.0%	49.9%
二戸市	25,513	13,701	-46.3%	52.9%
八幡平市	24,023	11,349	-52.8%	59.0%
奥州市	112,937	69,375	-38.6%	47.9%
滝沢市	55,579	44,032	-20.8%	40.1%
雫石町	15,731	8,112	-48.4%	55.6%
葛巻町	5,634	2,389	-57.6%	60.3%
岩手町	12,285	5,464	-55.5%	57.4%
紫波町	32,147	23,581	-26.6%	44.1%
矢巾町	28,056	22,283	-20.6%	39.9%
西和賀町	5,134	1,940	-62.2%	60.1%
金ケ崎町	15,535	11,516	-25.9%	40.8%
平泉町	7,252	3,790	-47.7%	53.2%
住田町	5,045	2,475	-50.9%	52.2%
大槌町	11,004	5,394	-51.0%	48.5%
山田町	14,320	6,703	-53.2%	51.6%
岩泉町	8,726	4,099	-53.0%	55.2%
田野畑村	3,059	1,388	-54.6%	57.3%
普代村	2,487	1,057	-57.5%	63.4%
軽米町	8,421	4,007	-52.4%	56.0%
野田村	3,936	2,104	-46.5%	51.3%
九戸村	5,378	2,550	-52.6%	55.6%
洋野町	15,091	6,821	-54.8%	63.3%
一戸町	11,494	4,956	-56.9%	58.5%

Municipalities of Iwate with the largest decline (2020→2050)

西和賀町（-62.2%）
葛巻町（-57.6%）
普代村（-57.5%）
一戸町（-56.9%）
岩手町（-55.5%）
洋野町（-54.8%）
田野畑村（-54.6%）
山田町（-53.2%）
岩泉町（-53.0%）
八幡平市（-52.8%）

Source: processed from the National Institute of Population and Social Security Research, Regional Population Projections for Japan (2023) (https://www.ipss.go.jp/pp-shicyoson/j/shicyoson23/t-page.asp). 2020 is the census; 2025 onwards are projections.