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Koshimizu, Japan

Hokkaido · Japan

Koshimizu is a small city in Hokkaido, Japan with a population of 5,029. Elevation: 62 ft (19 m). Average temperature: 44°F (6°C).

4.1 /5.0
A Great
5,029 Population 45/sq mi density
62 ft Elevation 19 meters
44°F Avg Temperature 6°C
36.2 in Annual Rain
Asia / Tokyo Timezone
$28,900 Median Income
A
Overall
4.1 / 5.0
Great overall score based on economy, affordability, safety and education
B
Economy
3.1 / 5.0
$28,900 median income, 3.0% unemployment
A+
Affordability
5.0 / 5.0
$68,000 home value, $340/mo rent

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.
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Full City Profile

About Koshimizu

Koshimizu

Koshimizu is a town in Okhotsk Subprefecture, Hokkaido, Japan.

People

Population5,029
Median Age49.6 yrs
Density45/mi²

Economy

B
Median Income$28,900
Unemployment3.0%

Housing

A+
Home Value$68,000
Rent$340
Housing Units2,012

Climate

Avg Temp44°F (6°C)
Rain36.2 in/yr
Sunny Days270/yr
Elevation62 ft (19 m)
Population5,029
Population Density45 / sq mi
Elevation62 ft (19 m)
Coordinates43.8590°, 144.4651°
TimezoneAsia/Tokyo
Country🇯🇵 Japan
State / ProvinceHokkaido
Average Temperature44°F (6°C)
January Average20°F (-7°C)
July Average64°F (18°C)
Annual Precipitation36.2 inches (920 mm)
Annual Snowfall8.6 inches (22 cm)
Median Household Income$28,900
Median Age49.6 years

About Koshimizu

Koshimizu is a small city in Japan (Hokkaido) with a population of 5,029. 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.

Koshimizu has a population of 5,029 with a density of 45 people per square mile, spread across 110.8 square miles. The median age is 49.6 years, 28% older than the national median of 38.9.

Population

5,029
Total Population
45
People / sq mi
49.6yrs
Median Age
28% above Japan avg
110.8mi²
Land Area

Language Spoken at Home

Other Languages 100.0%

Social Characteristics

Koshimizu vs Japan Average

The median household income in Koshimizu is $28,900, which is 62% below the national average of $75,149. The unemployment rate is 3.0% (below the 3.6% US average). The area has 161 business establishments.

Income: Koshimizu vs Japan

Commute Mode

Income

Median HH Income$28,900
62% below Japan avg

Employment & Poverty

Unemployment3.0%
17% below Japan avg
Establishments (County)161

Business (County)

Tax & Cost of Living

Commute & Transportation

Walkability

The median home value in Koshimizu is $68,000, 76% below the national median of $281,900. Monthly rent averages $340 (71% below the national average of $1,163). There are 2,012 total housing units in the city. The home price-to-income ratio is 2.4x, well within the affordable range.

Home Value Sources

Ownership Split

Home Values

Census Median$68,000
76% below Japan avg

Real Estate Market (Redfin)

Rental Costs

Census Median Rent$340
71% below Japan avg

Ownership & Property

Housing Units2,012

Property Tax

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.

Month Avg °C / °F Min / Max °C Rain (mm)
Jan -5.6°C / 22°F -9° / -2.2° 53.1
Feb -5.9°C / 21°F -9.7° / -2.1° 41.0
Mar -1.6°C / 29°F -5.2° / 2.1° 38.2
Apr 4.7°C / 40°F 0.5° / 8.9° 51.5
May 10°C / 50°F 5.7° / 14.3° 63.5
Jun 14°C / 57°F 10.3° / 17.8° 68.4
Jul 17.9°C / 64°F 14.5° / 21.3° 85.0
Aug 20°C / 68°F 16.7° / 23.4° 119.1
Sep 17°C / 63°F 13.4° / 20.7° 118.8
Oct 11.1°C / 52°F 7.1° / 15.1° 81.6
Nov 4.2°C / 40°F 0.5° / 7.8° 58.2
Dec -2.7°C / 27°F -6° / 0.6° 63.8
Koshimizu has a cool climate with an average annual temperature of 44°F (6°C). Winters average 20°F in January while summers reach 64°F in July. The area gets 270 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 36.2 inches. The area receives 8.6 inches of snow annually. The city sits at an elevation of 62 feet.

Temperature

20°F Jan (-7°C) 64°F Jul (18°C)
Annual Average43.5°F
19% below Japan avg
January Average20°F (-7°C)
July Average64°F (18°C)
Sunny Days270 days/yr

Geography

Elevation62 ft (19 m)
Area110.8 sq mi (286.9 km²)
Population Density45/sq mi
Coordinates43.8590°N, 144.4651°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 36.2"
5% below Japan avg
Snowfall 8.6"
Wettest Month (Sep) 5.08"
Driest Month (Feb) 1.61"

Air Quality

Earthquake History

578 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.6. Most recent: M4.5 on Aug 12, 2025.

Jan 15, 1993 52 km NE of Otofuke, Japan M7.6 88 km
Oct 8, 2003 39 km SSE of Kushiro, Japan M6.7 135 km
Jan 18, 2005 40 km E of Kushiro, Japan M6.3 107 km
Aug 31, 1994 36 km SSE of Yuzhno-Kurilsk, Russia M6.2 125 km
May 12, 1999 44 km W of Kushiro, Japan M6.2 105 km
Jan 15, 1993 17 km W of Kushiro, Japan M6.1 101 km
Apr 11, 2004 38 km E of Kushiro, Japan M6.1 109 km
Nov 15, 1997 19 km NNW of Shibetsu, Japan M6.1 45 km
Apr 26, 2001 37 km SE of Nemuro, Japan M6.0 145 km
Feb 25, 2023 Hokkaido, Japan region M6.0 123 km
Nov 30, 1995 30 km NW of Otrada, Russia M6.0 103 km
Jul 1, 2007 32 km W of Shibetsu, Japan M5.8 31 km
Apr 13, 2001 69 km SSW of Nemuro, Japan M5.6 143 km
Sep 28, 2003 48 km SE of Kushiro, Japan M5.6 139 km
Apr 24, 2018 12 km ENE of Nemuro, Japan M5.5 116 km
Mar 30, 2007 13 km ENE of Otrada, Russia M5.5 127 km
Mar 11, 2005 27 km ENE of Kushiro, Japan M5.5 88 km
Feb 17, 2004 27 km SE of Nemuro, Japan M5.5 135 km
Sep 26, 2024 30 km SE of Akkeshi, Japan M5.5 126 km
Jan 30, 1990 36 km SSW of Nemuro, Japan M5.5 124 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

1 hurricane (Cat 1+) within 500 km since 1980. Strongest: Category 1. Most recent: Sonamu (2000).

Year Name Category Closest
2000 Sonamu Category 1 265 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

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
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

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
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

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").

View full weather details →

Schools in Koshimizu

3 public schools (NCES 2022-23 data).

School Level Enrollment Teachers Student/Teacher
Koshimizu Elementary School
Koshimizu Junior High School
水上小学校
View full schools details →

Radio Stations near Koshimizu

0 stations within ~55 km.

Station Genre Quality

Museums in Koshimizu

NameTypeAddressPhoneAnnual 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

NameAddressStaffAnnual VisitsCirculationCollectionPrograms
Abashiri municipal library0.0
Koshimizu Library0.0
斜里町立図書館0.0

Restaurants in Koshimizu

2 restaurants within city radius — OpenStreetMap data

キッチンままべん
ラーメンきっさえきばしゃ

Train Stations in Koshimizu

3 train stations within city radius — OpenStreetMap data

Genseikaen
Hama-Koshimizu
Yamubetsu

Gas Stations in Koshimizu

2 gas stations within city radius — OpenStreetMap data

ENEOS
Hokuren SS Koshimizu Self

Banks in Koshimizu

1 banks within city radius — OpenStreetMap data

Abashiri Shinkin Bank

Stadiums & Teams in Koshimizu

TeamLeagueDivision

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.

AirportIATAType
JASDF Kenebetsu AirfieldMedium Airport
Memanbetsu AirportMMBMedium Airport
Nakashibetsu AirportSHBMedium Airport
Bekanbe AirfieldSmall Airport
Betsukai Flight ParkSmall Airport
Bihoro Air ParkSmall Airport
JGDSF Camp Bihoro AirfieldSmall Airport
Kitami Agricultural Airfield / Skyport KitamiSmall Airport
Yausubetsu AirfieldSmall Airport

Post Offices in Koshimizu

1 post offices.

Post OfficeAddress
Koshimizu Post Office

Churches & Religious Organizations in Koshimizu

6 religious organizations (IRS tax-exempt data).

NameAddress
Hokoji Temple
Kamiura Shrine
Koshimizu Shurine
Shinshuji Temple
Yanbetsu Shrine
Zuiunji Temple

Quick Facts

Timezone
Asia/Tokyo

🇯🇵 About Japan

Capital Tokyo
Population 126,529,100
Area 377,835 km²
GDP (USD) $4,213,167,237,906
GDP per capita $33,836
HDI 0.925
Life expectancy 84.0 years
Internet users 87.0%
Urban population 92.1%
Currency JPY (Yen)
Languages Japanese
Calling code +81
TLD .jp
Driving side left

Public Holidays in Japan

16 public holidays this year

Date Holiday Local Name
Jan 1 New Year's Day 元日
Jan 12 Coming of Age Day 成人の日
Feb 11 Foundation Day 建国記念の日
Feb 23 The Emperor's Birthday 天皇誕生日
Mar 20 Vernal Equinox Day 春分の日
Apr 29 Shōwa Day 昭和の日
May 4 Greenery Day みどりの日
May 5 Children's Day こどもの日
May 6 Constitution Memorial Day 憲法記念日
Jul 20 Marine Day 海の日
Aug 11 Mountain Day 山の日
Sep 21 Respect for the Aged Day 敬老の日
Sep 23 Autumnal Equinox Day 秋分の日
Oct 12 Sports Day スポーツの日
Nov 3 Culture Day 文化の日
Nov 23 Labour Thanksgiving Day 勤労感謝の日

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Frequently Asked Questions About Koshimizu

What is the population of Koshimizu?

Koshimizu has a population of 5,029 residents and is located in Japan. The population density is 45 people per square mile, spread across 110.8 square miles. The median age of residents is 49.6 years, which is older than the national median of 38.9 years.

Is Koshimizu expensive to live in?

The median household income is $28,900, 62% below the national average of $75,149. The median home value is $68,000 (76% below the U.S. median). Renters pay a median of $340 per month, below the national average of $1,163. The home price-to-income ratio is 2.4x, indicating housing is reasonably affordable relative to local income levels.

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. The area receives 270 sunny days per year, well above the national average of 205. Annual rainfall totals 36.2 inches, with 8.6 inches of snow.

How is the job market in Koshimizu?

Koshimizu has a healthy job market with an unemployment rate of 3.0%, near the national average of 3.6%. There are 161 business establishments in the area.

How much does housing cost in Koshimizu?

The median home value in Koshimizu is $68,000. For renters, the median monthly rent is $340.

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