Shiojiri-shi

In the most recent Population Census the population is about 67,000 (67,241 in 2020). Because this city merged in a Kiso lacquerware village in 2005, that small step appears between 2000 and 2005. From 64,128 in 2000, through 68,346 in 2005 when it merged the village in, 67,670 in 2010 and 67,135 in 2015, to 67,241 in 2020, it has held at over sixty thousand.

Look into the makeup and the figure of a basin city holding a dividing pass appears. The share aged 65 and over rose from 18.1% in 2000 to 28.5% in 2020 — up about ten points over twenty years, yet still short of three in ten. Households with children were 21.7% in 2020, and the childcare waitlist was zero in both 2024 and 2025. The Fiscal Capacity Index was 0.63 in FY2023 — a middling level at which its own tax revenue covers a little over six-tenths of expenditure. The numbers show a city that was a post on the highway crossing the dividing pass, holding its population at over sixty thousand while aging advances. Why it takes this shape cannot be read without going back to the history of the pass, the highway and the merger.

This town’s skeleton is set by the terrain of a pass that parts the water toward two seas, by the highway post that crosses that pass, by the Kiso village it merged in, and by the grapes and wine. The opening layer is the pass. At this land opening onto the southern end of the Matsumoto basin there are two passes, and along that divide the rain’s water parts and flows toward the distant Pacific and toward the Sea of Japan. This land was a transport chokepoint, crossing the dividing pass that parts the water toward two seas. The pass was this land’s old foundation.

On this dividing pass, a highway post stood. In the Edo era, this land’s post prospered holding the most inns of any in the prefecture, and the two neighboring posts also thrived. The road by which it became a city also mirrors this town. It became a city in the 1950s, and in 2005 it merged in a village holding a home of Kiso lacquerware and a well-known post-town streetscape. On Kikyogahara, a corner of the basin, grapes have been grown and wine brewed since the modern era. A pass that parts the water toward two seas, the highway post, the merger of a Kiso village, and the plain of grapes and wine — this town’s shape stands on the history of the highway post that a pass parting the water toward two seas held.

What characterizes Shiojiri is that, while carrying a history of the dividing pass and the highway post, it keeps its population at over sixty thousand as aging advances. From 64,128 in 2000 to 67,241 in 2020, with the merger of the Kiso village in between, it has moved at over sixty thousand. While many regional cities reduce their populations, it can be read that behind this town keeping its population lies its position as a transport chokepoint parting the water toward two seas, and the thickness of a basin holding manufacturing livelihoods and the plain of grapes and wine.

On the other hand, the share aged 65 and over was 28.5% in 2020 — up about ten points over twenty years, yet still short of three in ten. The childcare waitlist was zero in both 2024 and 2025, and households with children were 21.7% in 2020. A Fiscal Capacity Index of 0.63 is a level at which its own tax revenue covers a little over six-tenths of expenditure, in the middle range. It can be read that the establishments sited in the basin, and the incomes of households living at the highway chokepoint, support the tax base at a middling level. The city that was a post on the highway crossing the dividing pass still keeps its population at over sixty thousand while raising the town’s age. The population is nearly flat, aging is just short of three in ten, and fiscal stamina is middling. The town that held a pass where the rain’s water parts toward the Pacific and the Sea of Japan still leaves, in its population figures, the advantage of a transport chokepoint that the water-parting position brings.

Shiojiri’s history is not one thing. It has a history as a transport chokepoint that parts the water toward two seas, where at the southern end of the Matsumoto basin, along two passes, the rain’s water parts toward the distant Pacific and the Sea of Japan. It has the character of prospering as a post on the highway crossing that dividing pass, holding the most inns of any in the prefecture, and of holding a home of lacquerware and a well-known post-town streetscape in the Kiso village it merged in. And on Kikyogahara, grapes have been grown and fruit wine brewed since the modern era. The terrain of the southern end of the basin parting the water toward two seas held both the highway post and the grapes and wine of Kikyogahara within the same basin.

Shiojiri is a town where a pass that parts the water toward two seas held a highway post and a plain of grapes. From the dividing pass, to the highway post, to the merger of the Kiso village, to the grapes and wine of Kikyogahara — the geography of the southern end of the Matsumoto basin, which parts the water toward two seas, called in the post that stood the most inns in the prefecture and raised the grapes and wine of Kikyogahara. There was a pass where the water parts toward the Pacific and the Sea of Japan, and precisely because of that it became a pass worth crossing, and precisely because of that the most inns in the prefecture lined up. The sequence that runs on from that terrain to the post, and from the post to the town, flows beneath today’s Shiojiri.