Minowa-machi

In the latest Population Census the population is about twenty-five thousand (24,989 in 2020). From 25,661 in 2000, through 26,276 in 2005 and 26,214 in 2010, it rose to pass twenty-six thousand around 2010, and thereafter, through 25,241 in 2015 to 24,989 in 2020, it fell gently. Seen across the twenty years, it holds around twenty-five thousand. A town that holds this scale while being not a city is the most populous town in Nagano Prefecture.

Looking inside the figures, the marked figure of a terrace town based on precision factories appears. The share aged 65 and over rose about ten points from 18.9% in 2000 to 28.7% in 2020, but it still does not reach three in ten, and among the municipalities lined up in this article it is on the younger side. The household-with-children share is high at 23.0% in 2020. The employment rate is high among the municipalities of this article at 62.2% in 2020. The Childcare Waitlist was zero in both 2024 and 2025. The Fiscal Capacity Index was 0.56 in fiscal 2023 — the highest among the eight municipalities lined up in this article, a level whose own tax revenue covers more than half of expenditure. The figure of a terrace town holding precision factories, keeping the town’s youth and the stamina of its finances, appears in the numbers. Why it takes this shape cannot be read without going back over the history of the terrace and the factories.

A landform of the river terraces carved by the Tenryu River. The merger of three municipalities after the war. And the precision factories set at the base of its living. The shape of Minowa-machi is built of these three. The opening layer is the landform. The Tenryu River, flowing through the northern Ina Valley, has, over long ages, carved its banks and made flat, stepped land — river terraces. This town spreads east to west on those terraces. The flat land atop the terrace was suited for people to live, to open fields, and in time to set factories. Atop the terraces of the Tenryu — that is this town’s deepest foundation.

Upon those terraces ride the post-war merger and industry. In the mid-Showa era, when three municipalities became one and a new town was born, this town set factories making precision machinery at the base of its living. The clean air ringed by mountains and the flat land atop the terrace suited the precision production that requires fine dimensions. The shipment value of the goods those factories turn out now amounts to about 140 billion yen. Meanwhile, atop the terrace, fruit such as apples, pears and grapes was also raised, making use of the day-night temperature difference. Factories and fruit — the flat land atop the terrace made both possible. On the flat land atop the terrace, it set precision factories as its base — upon that history this town’s present stands.

What characterizes Minowa-machi is that, while holding the history of being based on precision factories, it has held the seat of most populous town in the prefecture, town though it be, and kept the town’s youth and the stamina of its finances. From 25,661 in 2000 to 24,989 in 2020, it has held around twenty-five thousand across the twenty years. That, within a Nagano Prefecture where many municipalities lose their population, it holds this scale while being not a city can be read as owing to the factories making precision machinery, which have gone on thickly making, within the town, places to work where the younger generation can build a living without commuting to another city. That a place to work is within the town works strongly toward holding young households here. That the employment rate is high at 62.2% in 2020, and the household-with-children share is high at 23.0%, are expressions of this.

And the figure that stands out is the Fiscal Capacity Index of 0.56 — the highest among the eight municipalities of this article. This can be read as an expression of how the precision factories, with a shipment value amounting to about 140 billion yen, firmly support the town’s tax source. That it can cover more than half of expenditure with its own tax revenue means a small degree of reliance on the local allocation tax. That the share aged 65 and over, at 28.7% in 2020, still does not reach three in ten is not unrelated to the factory places to work having held the younger generation. The Childcare Waitlist was zero in both 2024 and 2025. A population holding around twenty-five thousand, an aging that does not reach three in ten, the highest fiscal capacity of the eight municipalities. These are separate indicators, yet all stem from the single fact that "a place to work — the factory — is within the town." Gaze at any one number pulled out alone, and the image of this town does not come together.

Minowa holds several histories of its own. One is the landform of spreading east to west on the river terraces carved by the Tenryu River. Another is the character that, after the war, three municipalities became one and set, atop those terraces, factories making precision machinery at the base of its living. And those factories held the younger generation in the town and kept the seat of most populous town in the prefecture, town though it be. The landform of clean air ringed by mountains and flat land atop the terrace gave this town both precision production requiring fine dimensions and fruit that makes use of the temperature difference.

Minowa is a town where factories on the terrace held people and made it the prefecture’s most populous town. From the river terraces of the Tenryu, through the merger of three municipalities and the precision factories, to the prefecture’s most populous town — the geography of "the river terraces carved by the Tenryu River" gave this town both the modern choice of setting factories on the flat land and fruit that makes use of the temperature difference. While, in the same Ina Valley, towns that lost their main-line stations and lost people line up, this town has bound people fast by its own axis: the factories atop the terrace.