Nagasaki population pyramid 2020

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

Census

◀2020▶

Population: 1.3 million
Aged 0–14: 12.5%
Aged 15–64: 54.5%
Aged 65+: 33.0%
Aged 75+: 16.9%
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/42/2020" title="Nagasaki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/42/2020">Nagasaki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.).

Nagasaki at a glance

In 2020 the population of Nagasaki was 1.3 million: 12.5% aged 0–14, 54.5% aged 15–64 and 33.0% aged 65 and over (16.9% aged 75+).

From 1.3 million in 2020 it is projected to shrink by 33.8% to 868,817 in 2050; the share aged 65+ rises from 33.0% to 43.4%.

Among the 47 prefectures, it ranks 18th smallest by population in 2020, 5th largest by the size of the decline from 2020 to 2050, and 9th highest by the share aged 65+ in 2050.

The future of Nagasaki, compared

	2020	2050	Change	65+ (2020)	65+ (2050)	0–14 (2050)
Nagasaki	1.3 million	868,817	-33.8%	33.0%	43.4%	10.4%
Japan	126.1 million	104.7 million	-17.0%	28.6%	37.1%	9.9%

Trends 2020–2050

Population

Share aged 65+ (%)

Municipalities of Nagasaki

Municipality pages are in Japanese.

Municipality	2020	2050	Change	65+ (2050)
長崎市	409,118	280,138	-31.5%	42.4%
佐世保市	243,223	165,944	-31.8%	40.2%
島原市	43,338	27,091	-37.5%	47.7%
諫早市	133,852	93,988	-29.8%	44.0%
大村市	95,397	85,005	-10.9%	36.9%
平戸市	29,365	14,473	-50.7%	52.2%
松浦市	21,271	10,888	-48.8%	48.7%
対馬市	28,502	13,326	-53.2%	51.3%
壱岐市	24,948	13,199	-47.1%	50.4%
五島市	34,391	17,632	-48.7%	54.5%
西海市	26,275	12,827	-51.2%	50.4%
雲仙市	41,096	23,609	-42.6%	49.7%
南島原市	42,330	20,627	-51.3%	56.9%
長与町	40,780	27,295	-33.1%	43.5%
時津町	29,339	21,524	-26.6%	40.5%
東彼杵町	7,721	4,073	-47.2%	55.5%
川棚町	13,377	8,232	-38.5%	47.0%
波佐見町	14,291	9,942	-30.4%	42.1%
小値賀町	2,288	963	-57.9%	55.8%
佐々町	13,912	11,017	-20.8%	37.5%
新上五島町	17,503	7,024	-59.9%	63.3%

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

新上五島町（-59.9%）
小値賀町（-57.9%）
対馬市（-53.2%）
南島原市（-51.3%）
西海市（-51.2%）
平戸市（-50.7%）
松浦市（-48.8%）
五島市（-48.7%）
東彼杵町（-47.2%）
壱岐市（-47.1%）

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.