On the coastal hills of this town, tumuli of more than a thousand years ago sleep in a cluster. They are held to be the tombs of a clan that went on worshiping the god-dwelling island floating across the sea, and together with that island they were counted among the heritages of the world. Beyond the cluster of tumuli, the Genkai Sea spreads. This coastal land, lying just midway between two great cities, became a city as two towns were bound into one, and with new dwellings opened around the station, it has increased its population after the merger. While many regional cities lose population, the numbers of this coastal land, which has increased, have their own particular reasons. Fukutsu’s numbers are the record of a town in which a World Heritage tumulus cluster and population growth are inscribed.
A city in northwestern Fukuoka Prefecture, facing the Genkai Sea. This city was established in 2005 when two towns were newly bound into one, so the city’s population statistics treat 2005 onward, after establishment. From its 55,677 in 2005 to 67,033 in 2020, it has risen. What I (Atlas) want to read here is not the sign "a city of the Genkai Sea," but the causal thread: how the history of a World Heritage tumulus cluster and population growth is translated into today’s population and finances.
01 · Seeing the present Fukutsu in its numbers
In the latest Population Census the population is about 67,000 (67,033 in 2020). This city was established in 2005 when two towns were newly bound into one, so the city’s population statistics treat 2005 onward, after establishment. From its 55,677 in 2005, to 55,431 in 2010, to 58,781 in 2015, to 67,033 in 2020, it has increased greatly, especially in recent years.
Looking inside, the figure of a coastal city that gathers people midway between two great cities appears. The share aged 65 and over rather fell slightly, from 28.8% in 2015 to 28.2% in 2020. This is rare for a regional city. The household-with-children share is a high 26.4% (2020), and the crude birth rate is 10.3 per thousand in 2020, high for a regional city. The Childcare Waitlist was zero in both 2024 and 2025. The Fiscal Capacity Index was 0.55 in fiscal 2023, a level able to cover a little over half of expenditure with its own tax revenue. This coast, holding a tumulus cluster counted among the heritages of the world, increased its population after the merger and, especially in recent years, has greatly gathered young households. To read that steep rise, one must trace the position of lying just midway between two great cities, the tumulus cluster sleeping on the coastal hills, and the housing development before the station.
Source: Population Census (Statistics Bureau, MIC) / Local Government Finance Survey, Fiscal Capacity Index (MIC) / Childcare Facility Status Report (Children and Families Agency) / Real Estate Information Library (MLIT)
02 · Midway between two great cities, a tumulus cluster worshiping a god-dwelling island, housing development before the station, the merger of two towns — the history behind the numbers
This town’s skeleton is set by the position of lying midway between two great cities, the tumulus cluster of a clan that worshiped the god-dwelling island, the development of housing land around the station, and the merger of two towns. The starting layer is the coastal tumulus cluster. On the coastal hills of this land, tumuli of more than a thousand years ago sleep in a cluster. They are held to be the tombs of a clan that went on worshiping the god-dwelling island floating across the sea, and together with that island they were counted among the cultural heritages of the world. This coast, looking out to the island across the sea, was the old foundation of this town.
This coastal land opened up as a place to live in the modern era. This land lies just midway between two great ordinance-designated cities, and a railway and a national road run through along the coast. As housing land was opened around the station, those who commute to the two cities came to dwell on this coast. The path to becoming a city also reflects this town. In 2005 the two coastal towns were newly bound into one, and the present city was established. The position midway between two great cities, the tumulus cluster worshiping a god-dwelling island, the housing development before the station, and the merger of two towns — this town’s form stands upon the history of a tumulus cluster and population growth, carved by a coast that opened midway between two cities.
Source: Fukutsu City / the Shinbaru-Nuyama Tumulus Cluster (registered as a UNESCO World Cultural Heritage in 2017 as a component of the "Sacred Island of Okinoshima and Associated Sites in the Munakata Region" — overview) / Fukutsu City / location (situated between the two ordinance-designated cities of Fukuoka and Kitakyushu, it grew as a bedtown along the JR Kagoshima Main Line and National Route 3; population increase since 2010 through housing development around Fukuma Station — overview) / Fukutsu City (established on 2005-1-24 by the new merger of Fukuma Town and Tsuyazaki Town of Munakata County; Miyajidake Shrine — overview)
03 · On a coast holding a World Heritage tumulus cluster, increasing its population after the merger
What characterizes Fukutsu is that, while it holds the history of a coast holding a World Heritage tumulus cluster, it increases its population after the merger. From 55,677 in 2005, when the city was established, to 67,033 in 2020, some ten thousand were added over fifteen years. The recent way of increasing in particular is great. While many regional cities lose population, behind this town’s gains one can read a position lying just midway between two great cities, able to reach either, and new dwellings opened around the station. That the household-with-children share is a high 26.4% in 2020, and that the share aged 65 and over rather fell slightly, are expressions of that.
On the other hand, the Childcare Waitlist was zero in both 2024 and 2025, and the crude birth rate is 10.3 per thousand in 2020, high for a regional city. The Fiscal Capacity Index of 0.55 is a level able to cover a little over half of expenditure with its own tax revenue. The coast holding a World Heritage tumulus cluster increases its population after the merger and walks on while gathering young households. The population that increased greatly in recent years, the thick household-with-children share, and the aging that rather fell slightly — this sign of rejuvenation, rare for a regional city, comes from a single source: that the position of being able to commute to either of the two cities has drawn the child-raising generation to this coast.
Source: Population Census (Statistics Bureau, MIC) / Local Government Finance Survey, Fiscal Capacity Index (MIC) / Childcare Facility Status Report (Children and Families Agency)
04 · A coast that opened midway between two cities has held the tumulus cluster of a god-dwelling island
Fukutsu has two faces held by its coastal hills. One is the history of being midway between two cities, lying just midway between two great ordinance-designated cities, with a railway and a national road running through along the coast, able to commute to either city. Another is its face as a tumulus-cluster coast, where the tumuli of a clan that went on worshiping the god-dwelling island floating across the sea sleep in a cluster on the coastal hills, and which, together with that island, was counted among the cultural heritages of the world.
Fukutsu is a town where a coast that opened midway between two cities has held the tumulus cluster of a god-dwelling island. Upon the same coast that for more than a thousand years has looked out to the island across the sea, the dwellings of young households who commute to two cities now spread. An old land of prayer and a residential district that has grown in recent years lie folded one upon another along a single shoreline — the same sea wind blows through both the Nuyama tumuli and the new blocks before Fukuma Station.
Source: Fukutsu City / the Shinbaru-Nuyama Tumulus Cluster (registered as a UNESCO World Cultural Heritage in 2017 as a component of the "Sacred Island of Okinoshima and Associated Sites in the Munakata Region" — overview) / Fukutsu City / location (situated between the two ordinance-designated cities of Fukuoka and Kitakyushu, it grew as a bedtown along the JR Kagoshima Main Line and National Route 3; population increase since 2010 through housing development around Fukuma Station — overview) / Fukutsu City (established on 2005-1-24 by the new merger of Fukuma Town and Tsuyazaki Town of Munakata County; Miyajidake Shrine — overview)
05 · Atlas’s note — on a tumulus coast midway between two great cities, prayer and dwelling overlap
Lay out Fukutsu’s numbers and the indicators of a coastal city that gathers young households line up: a population that increased after the merger, an aging rate of 28.2%, a household-with-children share of 26.4%, a crude birth rate of 10.3, and a fiscal capacity of 0.55. But to put it with the accountant’s habit (Atlas) of fixing the eye precisely on a recent steep rise, what I want to read here is the population growth this position brought about — that this town "lies just midway between two great cities and can reach either." Rather than being the commuter sphere of a single great city, the position of being midway between two cities makes it a candidate place to live for those who commute to either city. The chain by which the position midway between two cities is translated into a power to draw people in explains this town’s numbers well.
Another thing I want to consider is that this town’s coast holds the history that "the tumuli of a clan that went on worshiping the god-dwelling island sleep in a cluster, and, together with that island, were counted among the cultural heritages of the world," and that this and the present population growth overlap upon the same single coast. The coast that for more than a thousand years has looked out to the island across the sea is now a coast where those who commute to two cities dwell.
The tombs of a clan that turned its prayers to the island across the sea, and the young households gathering at a siting able to commute to either of the two ordinance-designated cities, lie folded one upon another along the same shoreline. Whether to walk this coast as a hill where a World Heritage sleeps, or to choose it as a land of dwelling to raise children, divides how Fukutsu appears. The tombs of a clan that turned its prayers to the island across the sea, and the young households gathering at a siting able to commute to either of the two ordinance-designated cities, lie folded one upon another along the same shoreline.
Source: Population Census (Statistics Bureau, MIC) / Fukutsu City / the Shinbaru-Nuyama Tumulus Cluster (registered as a UNESCO World Cultural Heritage in 2017 as a component of the "Sacred Island of Okinoshima and Associated Sites in the Munakata Region" — overview) / Fukutsu City / location (situated between the two ordinance-designated cities of Fukuoka and Kitakyushu, it grew as a bedtown along the JR Kagoshima Main Line and National Route 3; population increase since 2010 through housing development around Fukuma Station — overview) / Fukutsu City (established on 2005-1-24 by the new merger of Fukuma Town and Tsuyazaki Town of Munakata County; Miyajidake Shrine — overview)
Editor’s note: all figures and sources are drawn from official statistics. The prose follows Atlas’s voice, and AI (atlas-handcrafted-reverse-v1 (wave33-west 2026-06-04)) handled the shaping of the text. Evaluative or predictive language (such as “a good buy” or “attractive”) is intentionally left out. Revision id: wave33w_