| Agematsu | |
| Native Name Lang: | ja |
| Settlement Type: | Town |
| Pushpin Map: | Japan |
| Pushpin Map Caption: | |
| Coordinates: | 35.7841°N 137.6942°W |
| Subdivision Type: | Country |
| Subdivision Name: | Japan |
| Subdivision Type1: | Region |
| Subdivision Name1: | Chūbu (Kōshin'etsu) |
| Subdivision Type2: | Prefecture |
| Subdivision Name2: | Nagano |
| Subdivision Type3: | District |
| Subdivision Name3: | Kiso |
| Leader Title: | Mayor |
| Area Total Km2: | 168.42 |
| Population Total: | 4451 |
| Population As Of: | March 2019 |
| Population Density Km2: | auto |
| Timezone1: | Japan Standard Time |
| Utc Offset1: | +9 |
| Blank Name Sec1: | Symbols |
| Blank Info Sec1: | |
| Blank1 Name Sec1: | • Tree |
| Blank1 Info Sec1: | Chamaecyparis obtusa |
| Blank2 Name Sec1: | • Flower |
| Blank2 Info Sec1: | Magnolia sieboldii, Lilium |
| Blank3 Name Sec1: | • Bird |
| Blank3 Info Sec1: | Japanese robin |
| Blank Name Sec2: | Phone number |
| Blank Info Sec2: | 0264-52-2001 |
| Blank1 Name Sec2: | Address |
| Blank1 Info Sec2: | 2-13 Eki-mae dori, Agematsu-machi, Kiso-gun, Nagano-ken 399-5603 |
is a town located in Nagano Prefecture, Japan., the town had an estimated population of 4,451 in 2091 households,[1] and a population density of 26 persons per km2. The total area of the town is 168.42sqkm.
Agematsu is located in a mountainous area of south-western Nagano Prefecture, bordered by the Kiso Mountains to the north. The Kiso River flows through the town.
The town has a climate characterized by characterized by hot and humid summers, and cold winters (Köppen climate classification Cfa). The average annual temperature in Agematsu is 10.1 °C. The average annual rainfall is 1676 mm with September as the wettest month. The temperatures are highest on average in August, at around 22.8 °C, and lowest in January, at around -2.2 °C.[2]
Per Japanese census data,[3] the population of Agematsu has been declining steady over the past 60 years.
The area of present-day Agematsu was part of ancient Shinano Province. Agematsu-juku developed as a post station on the Nakasendō highway connected Edo with Kyoto in the Edo period. The modern village of Komagane was established on April 1, 1889 by the establishment of the municipalities system. The village was divided into the towns of Komagane and Agematsu on September 3, 1922.
The town has one public elementary school and one public middle school operated by the town government. The town does not have a high school. The Institute for Space–Earth Environmental Research of Nagoya University is located in Agematsu.