opengov.jp

Ino (いの町)

Town

Kochi (高知) — 2025 — Based on Basic Resident Register

Total Population

20,829

-354 (-1.67%)

Young (0–14)

9.5%

1,985

Working Age (15–64)

48.8%

10,168

Aging Rate

41.4%

8,631

Population Trends (2005–2025)

* Data before 2012 includes Japanese residents only (foreign residents were added to the Basic Resident Register in July 2012)

Breakdown by Sex (2025)

Category Total Male Female
Total 20,829 9,985 10,844
Young (0–14) 1,985 1,059 926
Working Age (15–64) 10,168 5,136 5,032
Elderly (65+) 8,631 3,765 4,866

Annual Trends

Year Total Population 0–14 15–64 65+ Aging Rate
2025 20,829 1,985 10,168 8,631
41.4%
2024 21,183 2,004 10,474 8,663
40.9%
2023 21,504 2,050 10,717 8,702
40.5%
2022 21,866 2,083 11,028 8,724
39.9%
2021 22,235 2,106 11,380 8,715
39.2%
2020 22,567 2,119 11,727 8,675
38.4%
2019 23,024 2,165 12,126 8,694
37.8%
2018 23,349 2,193 12,444 8,673
37.1%
2017 23,712 2,278 12,849 8,547
36.0%
2016 24,076 2,333 13,232 8,477
35.2%
2015 24,628 2,433 13,815 8,347
33.9%
2014 25,144 2,534 14,423 8,153
32.4%
2013 25,413 2,594 14,748 8,036
31.6%
2012 25,763 2,635 15,250 7,878
30.6%
2011 26,210 2,758 15,649 7,803
29.8%
2010 26,595 2,877 15,851 7,867
29.6%
2009 27,038 3,027 16,194 7,817
28.9%
2008 27,550 3,194 16,604 7,752
28.1%
2007 27,925 3,343 16,911 7,671
27.5%
2006 28,278 3,462 17,247 7,569
26.8%
2005 28,651 3,592 17,536 7,523
26.3%