Understanding Community Population Dynamics: Insights from a Nationwide Survey of 242 Municipalities

Launch of Archive: How Well Do You Know Your Community's Population?

The General Association for Municipal DX Promotion (GDX), located in Minato City, Tokyo, has officially released a recorded archive of the report meeting held on August 19, 2026, titled "Understanding and Utilizing Community Population Dynamics." This meeting, part of the Community Population Visualization Project, is now available for free viewing on YouTube.

During this report meeting, results from a nationwide survey conducted across 242 municipalities in 46 prefectures were shared and analyzed. Alarmingly, while 97.5% of the municipalities expressed concerns over population decline and a lack of workforce, only 7.4% confirmed they have a comprehensive numerical understanding of their community population.

Background of the Re-Stream — Responses to the Survey

On August 19, the report attracted numerous attendees, primarily from municipal offices across Japan. Post-event surveys indicated that 91.2% of viewers found the information "highly useful" or "useful."

However, several attendees mentioned they could not complete the session due to work obligations or missed the initial broadcast entirely. Recognizing that local officials often struggle to maintain dedicated viewing time due to customer service duties and other distractions, GDX decided to implement a re-broadcast of the meeting for those who could not join or had to leave early.

Voices from Participants (Survey Excerpts)

Participants shared valuable feedback including insights on collaboration among municipalities and ways to increase membership utilization effectively. There were remarks on the clarity of presenting existing community population data and the necessity of reducing barriers to initiate various policies. Additionally, attendees acknowledged the importance of linking fragmented data regarding community populations.

Context of the Report — Increasing Engagement Yet Unclear Numbers

The phrase "community population is essential" has become more popular, with various initiatives like migration support, hometown tax, and city promotions increasing interaction with individuals outside their municipalities. Despite this, the data collected tends to be siloed across departments, resulting in a lack of overall visibility and analysis.

When asked, "How many community residents does your municipality actively engage with?" very few could provide a precise numerical answer. While various forms of engagement exist, and data is available, it often remains disconnected and obscure. This common frustration faced by many local officials is exacerbated by the Ministry of Internal Affairs and Communications introducing the "Hometown Resident Registration System" intended for full operation in 2028. This system poses significant challenges for municipalities in identifying and forming a community base.

GDX conducted this nationwide survey to visualize the significant transition municipal offices face regarding community population challenges and potential measures. The report gathering's objective was to share aggregated findings widely and propose policy strategies connecting community population data to actionable steps.

Key Findings from the Survey

1. 97.5% of municipalities feel a sense of crisis regarding population decline and workforce shortages, with 57.4% indicating they have a "very strong sense of crisis".
2. Municipalities connect with an average of 4.2 channels, with 80.6% of interactions coming from hometown tax contributors.
3. While only 7.4% can quantify their overall community population, only 4.5% can continually monitor their community engagement's "interests and intentions.
4. Major challenges include ``recognizing effects`` which poses a problem for 64.0% of municipalities, and ``data fragmentation across departments`` affects 62.4%.

Archive of Community Population Laboratory Available

Past webinars from the foundational series, the Community Population Laboratory, are also available on YouTube for additional insights.

- #0 "What Exactly is Community Population?" (Archived Video)
- #1 "Community Population, Looking Ahead — How Does Migration and U-Turn Happen?" (Archived Video)

Upcoming Event: Community Population Laboratory #2 (September 2)

The next installment of the series will feature guests from Niigata Prefecture Minami Uonuma City, discussing the conditions that cultivate community populations. The sessions include perspectives from both administrative and civil sectors. This event is free but requires prior registration.

About the General Association for Municipal DX Promotion

Established in 2023, GDX supports the DX promotion of municipalities through partnerships with private enterprises. Functioning as a hub connecting local governments and businesses, GDX engages in providing information, conducting surveys, and organizing various seminars.