Koshimizu, Japan
Hokkaido · Japan
Koshimizu is a small town in Hokkaido, Japan with a population of 4,675. Elevation: 62 ft (19 m). Average temperature: 44°F (6°C).
Population source: Wikidata (dated census and official estimates), GeoNames. Climate: WorldClim 2.1 normals (1970-2000), NASA POWER. Updated August 2026
Discover Koshimizu, Japan
Explore over 40 sections covering people, economy, housing, health, crime, climate, community, costs, trends, schools, colleges, hospitals, treatment centers, industries, museums, libraries, breweries, farmers markets, grocery stores, pharmacies, campgrounds, parks, trails, stadiums, ski resorts, daycare centers, nursing homes, churches, fire stations, cell towers, bridges, power plants, EV stations, prisons, radio stations, airports, police stations, post offices, Amtrak stations, superfund sites, UNESCO sites, and more.
Use the tabs and dropdown menus below to navigate every data point we track for this city.
About Koshimizu
Koshimizu is a town in Okhotsk Subprefecture, Hokkaido, Japan.
People
Climate
| Population | 4,675 |
| Population Density | 42 / sq mi |
| Elevation | 62 ft (19 m) |
| Coordinates | 43.8590°, 144.4651° |
| Timezone | Asia/Tokyo |
| Country | 🇯🇵 Japan |
| State / Province | Hokkaido |
| Average Temperature | 44°F (6°C) |
| January Average | 20°F (-7°C) |
| July Average | 64°F (18°C) |
| Annual Precipitation | 36.2 inches (920 mm) |
| Annual Snowfall | 8.6 inches (22 cm) |
About Koshimizu
Koshimizu is a small town in Japan (Hokkaido) with a population of 4,675. The city sits at an elevation of 62 feet (19 meters) above sea level. The average annual temperature is 44°F (6°C). Temperatures range from 20°F in January to 64°F in July. Annual precipitation averages 36.2 inches. The timezone is Asia/Tokyo.
Climate in Koshimizu
Koshimizu has an average annual temperature of 6.9°C (44°F). The hottest month is Aug (20°C), the coldest is Feb (-5.9°C). Average annual precipitation is 842 mm.
Temperature
| Annual Average | 43.5°F |
| 19% below Japan avg | |
| January Average | 20°F (-7°C) |
| July Average | 64°F (18°C) |
Geography
| Elevation | 62 ft (19 m) |
| Area | 110.8 sq mi (286.9 km²) |
| Population Density | 42/sq mi |
| Coordinates | 43.8590°N, 144.4651°E |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1973 | HOKKAIDO ISLAND | Earthquake | 6.0 m | - | 130 km |
| 1938 | E. HOKKAIDO ISLAND | Earthquake | 0.9 m | 1 | 32 km |
| 1956 | NE. HOKKAIDO ISLAND | Earthquake | 0.4 m | - | 57 km |
| 2004 | HOKKAIDO ISLAND | Earthquake | 0.1 m | - | 109 km |
| 1961 | SE. HOKKAIDO ISLAND | Earthquake | 0.1 m | - | 141 km |
Nearby Volcanoes
11 volcanoes within 200 km. Closest: Kussharo (27 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Kussharo | Caldera | 574 m (1,883 ft) | 1320 | 27 km |
| Mashu | Caldera | 857 m (2,812 ft) | 1080 | 33 km |
| Shiretoko-Iozan | Stratovolcano | 1,562 m (5,125 ft) | 1936 | 64 km |
| Akan | Caldera | 1,499 m (4,918 ft) | 2008 | 64 km |
| Tomariyama [Golovnin] | Caldera | 535 m (1,755 ft) | 1848 | 83 km |
| Raususan [Mendeleev] | Stratovolcano | 882 m (2,894 ft) | 1880 | 102 km |
| Maruyama | Stratovolcano(es) | 2,013 m (6,604 ft) | 1898 | 125 km |
| Taisetsuzan | Stratovolcano(es) | 2,291 m (7,516 ft) | 1739 | 131 km |
| Ruruidake [Smirnov] | Stratovolcano | 1,486 m (4,875 ft) | Unknown | 149 km |
| Tokachidake | Stratovolcano(es) | 2,077 m (6,814 ft) | 2004 | 151 km |
| Chachadake [Tiatia] | Stratovolcano | 1,822 m (5,978 ft) | 1981 | 153 km |
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 2.3 in | |
| February | 20°F (-7°C) | 1.6 in | Coldest, Driest |
| March | 28°F (-2°C) | 2.5 in | |
| April | 41°F (5°C) | 2.6 in | |
| May | 50°F (10°C) | 3.0 in | |
| June | 57°F (14°C) | 2.8 in | |
| July | 64°F (18°C) | 3.4 in | |
| August | 67°F (20°C) | 4.3 in | Warmest |
| September | 61°F (16°C) | 5.1 in | Wettest |
| October | 51°F (11°C) | 3.6 in | |
| November | 38°F (4°C) | 2.9 in | |
| December | 26°F (-3°C) | 2.2 in |
Koshimizu has a seasonal temperature swing of 48°F / from 20°F in February to 67°F in August. Total annual precipitation is 36.2 inches, with September being the wettest month (5.1") and February the driest (1.6").
Schools in Koshimizu
3 public schools (OpenStreetMap data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| Koshimizu Elementary School | - | - | - | - |
| Koshimizu Junior High School | - | - | - | - |
| 水上小学校 | - | - | - | - |
Radio Stations near Koshimizu
0 stations within ~55 km.
| Station | Genre | Quality |
|---|
Museums in Koshimizu
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| Abashiri City Historical Museum | ||||
| Abashiri Municipal Museum of Art | ||||
| Abashiri Prison Museum | ||||
| Alp Museum | ||||
| Hokkaido Museum of Northern People | ||||
| Kawayu Visitor Center | ||||
| Kiyosato Local Museum | ||||
| Koshimizu Town Historical Museum | ||||
| Moyoro Shell Mound Museum | ||||
| Okhotsk Ryu-hyo Museum | ||||
| Shiretoko Musium | ||||
| 大鵬相撲記念館 | ||||
| 姉妹町友好都市交流記念館 | ||||
| 斜里町民俗資料館 |
Libraries in Koshimizu
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Abashiri municipal library | 0.0 | |||||
| Koshimizu Library | 0.0 | |||||
| 斜里町立図書館 | 0.0 |
Restaurants in Koshimizu
2 restaurants within city radius - OpenStreetMap data
Train Stations in Koshimizu
3 train stations within city radius - OpenStreetMap data
Gas Stations in Koshimizu
2 gas stations within city radius - OpenStreetMap data
Banks in Koshimizu
1 banks within city radius - OpenStreetMap data
Stadiums & Teams in Koshimizu
| Team | League | Division |
|---|---|---|
Ski Resorts Near Koshimizu
7 ski resorts within range.
| Resort | Slopes (km) | Lifts | Peak (m) | Price | Season | Night | Park |
|---|---|---|---|---|---|---|---|
| Kiyosato Choei Midori Ski Area | 0.0 | - | - | $0 | - | - | - |
| Wakamatsu Shimin Ski Area | 0.0 | - | - | $0 | - | - | - |
| Higashimokoto Shirakabadai Ski Area | 0.0 | - | - | $0 | - | - | - |
| Bihoro Lily Yama Ski Area | 0.0 | - | - | $0 | - | - | - |
| Koshimizu Chomin Ski Area | 0.0 | - | - | $0 | - | - | - |
| Northern Arc Resort | 0.0 | - | - | $0 | - | - | - |
| Abashiri Lake View Ski Resort | 0.0 | - | - | $0 | - | - | - |
Airports Near Koshimizu
9 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| JASDF Kenebetsu Airfield | - | Medium Airport |
| Memanbetsu Airport | MMB | Medium Airport |
| Nakashibetsu Airport | SHB | Medium Airport |
| Bekanbe Airfield | - | Small Airport |
| Betsukai Flight Park | - | Small Airport |
| Bihoro Air Park | - | Small Airport |
| JGDSF Camp Bihoro Airfield | - | Small Airport |
| Kitami Agricultural Airfield / Skyport Kitami | - | Small Airport |
| Yausubetsu Airfield | - | Small Airport |
Post Offices in Koshimizu
1 post offices.
| Post Office | Address |
|---|---|
| Koshimizu Post Office |
Churches & Religious Organizations in Koshimizu
6 religious organizations (IRS tax-exempt data).
| Name | Address |
|---|---|
| Hokoji Temple | |
| Kamiura Shrine | |
| Koshimizu Shurine | |
| Shinshuji Temple | |
| Yanbetsu Shrine | |
| Zuiunji Temple |
Quick Facts
🇯🇵 About Japan
Public Holidays in Japan
16 public holidays this year
Download Full City Report
Get a comprehensive, print-ready PDF with all data for Koshimizu.
Get ReportFrequently Asked Questions About Koshimizu
What is the population of Koshimizu?
Koshimizu has a population of 4,675 residents and is located in Japan. The population density is 42 people per square mile, spread across 110.8 square miles.
What is the weather like in Koshimizu?
Koshimizu has a cool climate with an average annual temperature of 44°F (6°C). Winter temperatures average 20°F in January, while summers reach an average of 64°F in July. Annual rainfall totals 36.2 inches, with 8.6 inches of snow.
Nearby Cities
Want every data point for Koshimizu?
The full profile puts all sections on one printable page, no tabs.
Full City Profile