Saga population pyramid 2040

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

Projection

◀2040▶

Population: 687,798
Aged 0–14: 11.2%
Aged 15–64: 52.1%
Aged 65+: 36.7%
Aged 75+: 22.7%
vs 2020: -15.2%

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/41/2040" title="Sagaの人口ピラミッド（2040年）" loading="lazy" style="width:100%;max-width:720px;aspect-ratio:720/615;border:0"></iframe>
<p><a href="https://pyramid.0xkaz.com/jp/41/2040">Sagaの人口ピラミッド（2040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.).

Saga at a glance

In 2040 the population of Saga is projected to be 687,798: 11.2% aged 0–14, 52.1% aged 15–64 and 36.7% aged 65 and over (22.7% aged 75+).

From 811,442 in 2020 it is projected to shrink by 23.5% to 620,873 in 2050; the share aged 65+ rises from 30.6% to 39.3%.

Among the 47 prefectures, it ranks 8th smallest by population in 2040, 22nd smallest by the size of the decline from 2020 to 2050, and 15th lowest by the share aged 65+ in 2050.

The future of Saga, compared

	2020	2050	Change	65+ (2020)	65+ (2050)	0–14 (2050)
Saga	811,442	620,873	-23.5%	30.6%	39.3%	11.3%
Japan	126.1 million	104.7 million	-17.0%	28.6%	37.1%	9.9%

Trends 2020–2050

Population

Share aged 65+ (%)

Municipalities of Saga

Municipality pages are in Japanese.

Municipality	2020	2050	Change	65+ (2050)
佐賀市	233,301	194,311	-16.7%	37.4%
唐津市	117,373	80,289	-31.6%	41.9%
鳥栖市	74,196	72,385	-2.4%	33.6%
多久市	18,295	10,306	-43.7%	49.7%
伊万里市	52,629	35,675	-32.2%	41.7%
武雄市	47,914	36,558	-23.7%	39.9%
鹿島市	27,892	17,646	-36.7%	43.6%
小城市	43,952	34,241	-22.1%	38.6%
嬉野市	25,848	16,149	-37.5%	46.3%
神埼市	31,022	23,364	-24.7%	39.9%
吉野ヶ里町	16,323	14,114	-13.5%	31.6%
基山町	17,250	13,129	-23.9%	38.9%
上峰町	9,286	7,991	-13.9%	37.8%
みやき町	25,511	20,920	-18.0%	38.5%
玄海町	5,609	3,332	-40.6%	49.5%
有田町	19,010	11,980	-37.0%	46.8%
大町町	6,293	3,577	-43.2%	49.4%
江北町	9,566	8,313	-13.1%	35.5%
白石町	22,051	12,558	-43.1%	49.4%
太良町	8,121	4,035	-50.3%	53.0%

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

太良町（-50.3%）
多久市（-43.7%）
大町町（-43.2%）
白石町（-43.1%）
玄海町（-40.6%）
嬉野市（-37.5%）
有田町（-37.0%）
鹿島市（-36.7%）
伊万里市（-32.2%）
唐津市（-31.6%）

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.