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Kōzushima, Japan

Tokyo · Japan

Kōzushima is a small town in Tokyo, Japan with a population of 1,855. Elevation: 203 ft (62 m). Average temperature: 63°F (17°C).

4.1 /5.0
A Great
1,855 Population 259/sq mi density
203 ft Elevation 62 meters
63°F Avg Temperature 17°C
96.4 in Annual Rain
Asia / Tokyo Timezone
$45,800 Median Income
A
Overall
4.1 / 5.0
Great overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$45,800 median income, 2.7% unemployment
A+
Affordability
4.6 / 5.0
$166,000 home value, $830/mo rent

Discover Kōzushima, 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.

Full City Profile

About Kōzushima

Kōzushima

Kōzushima Village is a village located in Ōshima Subprefecture, Tokyo Metropolis, Japan. As of 1 June 2022, the village had an estimated population of 1,841, and a population density of 99 persons per km2. Its total area is 18.58 square kilometres (7.17 sq mi).

People

Population1,855
Median Age44.7 yrs
Density259/mi²

Economy

B+
Median Income$45,800
Unemployment2.7%

Housing

A+
Home Value$166,000
Rent$830
Housing Units742

Climate

Avg Temp63°F (17°C)
Rain96.4 in/yr
Sunny Days161/yr
Elevation203 ft (62 m)
Population1,855
Population Density259 / sq mi
Elevation203 ft (62 m)
Coordinates34.2000°, 139.1333°
TimezoneAsia/Tokyo
Country🇯🇵 Japan
State / ProvinceTokyo
Average Temperature63°F (17°C)
January Average50°F (10°C)
July Average75°F (24°C)
Annual Precipitation96.4 inches (2,449 mm)
Annual Snowfall0.0 inches (0 cm)
Median Household Income$45,800
Median Age44.7 years

About Kōzushima

Kōzushima is a small town in Japan (Tokyo) with a population of 1,855. The city sits at an elevation of 203 feet (62 meters) above sea level. The average annual temperature is 63°F (17°C). Temperatures range from 50°F in January to 75°F in July. Annual precipitation averages 96.4 inches. The timezone is Asia/Tokyo.

Kōzushima has a population of 1,855 with a density of 259 people per square mile, spread across 7.2 square miles. The median age is 44.7 years, 15% older than the national median of 38.9.

Population

1,855
Total Population
259
People / sq mi
44.7yrs
Median Age
15% above Japan avg
7.2mi²
Land Area

Language Spoken at Home

Other Languages 100.0%

Social Characteristics

Kōzushima vs Japan Average

The median household income in Kōzushima is $45,800, which is 39% below the national average of $75,149. The unemployment rate is 2.7% (below the 3.6% US average). The area has 59 business establishments.

Income: Kōzushima vs Japan

Commute Mode

Income

Median HH Income$45,800
39% below Japan avg

Employment & Poverty

Unemployment2.7%
25% below Japan avg
Establishments (County)59

Business (County)

Tax & Cost of Living

Commute & Transportation

Walkability

The median home value in Kōzushima is $166,000, 41% below the national median of $281,900. Monthly rent averages $830 (29% below the national average of $1,163). There are 742 total housing units in the city. The home price-to-income ratio is 3.6x.

Home Value Sources

Ownership Split

Home Values

Census Median$166,000
41% below Japan avg

Real Estate Market (Redfin)

Rental Costs

Census Median Rent$830
29% below Japan avg

Ownership & Property

Housing Units742

Property Tax

Kōzushima enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 50°F in January while summers reach 75°F in July. The area gets 161 sunny days per year, below the national average of 205. Annual precipitation totals 96.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 203 feet.

Temperature

50°F Jan (10°C) 75°F Jul (24°C)
Annual Average62.6°F
16% above Japan avg
January Average50°F (10°C)
July Average75°F (24°C)
Sunny Days161 days/yr

Geography

Elevation203 ft (62 m)
Area7.2 sq mi (18.6 km²)
Population Density259/sq mi
Coordinates34.2000°N, 139.1333°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 96.4"
154% above Japan avg
Snowfall 0.0"
Wettest Month (Jun) 12.05"
Driest Month (Dec) 4.17"

Air Quality

Earthquake History

1,582 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.5. Most recent: M4.7 on Aug 21, 2025.

Sep 23, 1990 153 km SSE of ?yama, Japan M6.5 113 km
Jul 30, 2000 94 km SSE of Shimoda, Japan M6.5 40 km
Feb 20, 1990 28 km E of Shimoda, Japan M6.4 57 km
Sep 3, 1991 115 km S of Shimoda, Japan M6.4 70 km
Sep 23, 1990 162 km SSE of ?yama, Japan M6.2 120 km
Aug 10, 2009 8 km NE of Sagara, Japan M6.2 100 km
Jul 1, 2000 53 km SSE of Shimoda, Japan M6.1 2 km
Jul 15, 2000 near the south coast of Honshu, Japan M6.1 18 km
May 4, 2014 31 km ESE of It?, Japan M6.0 83 km
Mar 15, 2011 6 km NNW of Fujinomiya, Japan M6.0 129 km
Oct 6, 1995 68 km S of Shimoda, Japan M5.9 15 km
Jul 8, 2000 71 km SSE of Shimoda, Japan M5.9 16 km
Jan 15, 2007 15 km WSW of Heda, Japan M5.9 89 km
Aug 1, 2011 20 km E of ?yama, Japan M5.9 80 km
Feb 1, 1992 4 km SSE of Miura, Japan M5.8 111 km
May 14, 2023 156 km SSE of Shimoda, Japan M5.8 101 km
Jul 30, 2000 90 km SSE of Shimoda, Japan M5.7 36 km
Aug 18, 2000 64 km SSE of Shimoda, Japan M5.7 9 km
Feb 28, 1998 127 km S of ?yama, Japan M5.7 125 km
Jul 2, 2000 71 km SSE of Shimoda, Japan M5.7 16 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

56 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Halong (2025).

Year Name Category Closest
2025 Halong Category 4 180 km
2025 Nakri Category 1 163 km
2024 Ampil Category 3 160 km
2024 Jebi Category 1 252 km
2023 Lan Category 2 288 km
2021 Mindulle Category 1 277 km
2019 Faxai Category 4 17 km
2019 Hagibis Category 2 60 km
2018 Jongdari Category 2 33 km
2018 Shanshan Category 1 191 km
2017 Lan Category 2 200 km
2016 Mindulle Category 1 36 km
2014 Phanfone Category 1 103 km
2013 Wipha Category 1 159 km
2011 Roke Category 3 145 km
2010 Chaba Category 1 188 km
2009 Melor Category 1 234 km
2009 Krovanh Category 1 105 km
2008 Sinlaku Category 1 220 km
2007 Fitow Category 1 41 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

20 tsunamis recorded within 500 km. Highest wave on record: 21.0 m (69 ft).

Year Location Cause Max Wave Deaths Distance
1854 ENSHUNADA SEA Earthquake 21.0 m 1,000 116 km
1923 SAGAMI BAY Earthquake 13.0 m 105,385 106 km
1703 OFF SW BOSO PENINSULA Earthquake 11.7 m 5,233 83 km
1707 ENSHUNADA Earthquake 11.0 m 2,000 123 km
1498 ENSHUNADA SEA Earthquake 10.0 m 5,000 98 km
1495 KAMAKURA, SAGAMI BAY, TOKAIDO Earthquake 5.0 m 200 106 km
1855 ENSHUNADA Earthquake 3.0 m — 145 km
1433 OFF IZU-OSHIMA Earthquake 2.0 m — 85 km
2009 HONSHU: S COAST Earthquake 0.6 m 1 100 km
1980 HONSHU ISLAND Earthquake 0.6 m — 68 km
1978 TOKAIDO Earthquake 0.4 m 25 69 km
1923 RYUKYU ISLANDS Earthquake 0.3 m — 125 km
1990 W. OF BONIN ISLANDS, IZU IS., JAPAN Earthquake 0.2 m — 113 km
1974 TOKAIDO Earthquake 0.2 m 30 60 km
1982 S. OF HONSHU ISLAND Earthquake 0.2 m — 50 km
1990 JAPAN Earthquake 0.2 m — 57 km
2000 HONSHU: S COAST Earthquake 0.1 m — 40 km
2000 HONSHU: S COAST Earthquake 0.1 m — 18 km
2000 KOZU-SHIMA ISLAND, HONSHU Earthquake 0.1 m 1 2 km
1857 TOKAIDO Earthquake — — 101 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

10 volcanoes within 200 km. Closest: Kozushima (3 km).

Name Type Elevation Last Eruption Distance
Kozushima Lava dome(s) 572 m (1,877 ft) 838 3 km
Niijima Lava dome(s) 432 m (1,417 ft) 886 25 km
Miyakejima Stratovolcano 775 m (2,543 ft) 2010 38 km
Toshima Stratovolcano 508 m (1,667 ft) -4550 38 km
Mikurajima Stratovolcano 851 m (2,792 ft) -4100 56 km
Izu-Oshima Stratovolcano 758 m (2,487 ft) 1990 63 km
Izu-Tobu Pyroclastic cone(s) 1,406 m (4,613 ft) 1989 78 km
Hakoneyama Complex 1,438 m (4,718 ft) 2015 115 km
Hachijojima Stratovolcano(es) 854 m (2,802 ft) 1606 132 km
Fujisan Stratovolcano 3,776 m (12,388 ft) 1708 134 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 50°F (10°C) 4.2 in
February 48°F (9°C) 5.1 in Coldest
March 52°F (11°C) 7.9 in
April 59°F (15°C) 8.2 in
May 65°F (18°C) 8.9 in
June 70°F (21°C) 12.1 in Wettest
July 75°F (24°C) 8.0 in
August 78°F (26°C) 9.0 in Warmest
September 74°F (24°C) 11.1 in
October 67°F (20°C) 10.7 in
November 61°F (16°C) 7.3 in
December 54°F (12°C) 4.2 in Driest

Kōzushima has a seasonal temperature swing of 30°F / from 48°F in February to 78°F in August. Total annual precipitation is 96.4 inches, with June being the wettest month (12.1") and December the driest (4.2").

View full weather details →

Schools in Kōzushima

3 public schools (NCES 2022-23 data).

School Level Enrollment Teachers Student/Teacher
Kozu Junior High School — — — —
Kozu Elementary School — — — —
Kozu High School — — — —
View full schools details →

Radio Stations near Kōzushima

0 stations within ~55 km.

Station Genre Quality

Museums in Kōzushima

NameTypeAddressPhoneAnnual Revenue
Niijima Museum
寿詩　家
神津島村郷土資料館

Libraries in Kōzushima

NameAddressStaffAnnual VisitsCirculationCollectionPrograms
神津島村図書館0.0

Hotels in Kōzushima

36 hotels within city radius — OpenStreetMap data

シヨウゴロ
よたね
五利左
南海荘
双葉屋
喜三郎
大栄丸
孫七
山下旅館
山長
平和荘
年間民宿　元造
年間民宿　勘九郎
年間民宿　小八
年間民宿　鈴木荘
年間民宿　長谷川
新八
旅館 ふもと屋
旅館 喜六
旅館 徳左
旅館 文栄
梅田荘
民宿　はつみ
民宿　はまきよ
民宿　よそうべえ
民宿　三十郎
民宿　中村屋
民宿　吉左丸
民宿　吉栄丸
民宿　大松
民宿　市造
民宿　鈴屋
民宿　音の葉
民宿まつよし
治エ門
菊乃屋

Restaurants in Kōzushima

5 restaurants within city radius — OpenStreetMap data

Ailana
まいとりぃ
新栄楼
潮見
美家古寿し

Cafes in Kōzushima

4 cafes within city radius — OpenStreetMap data

COZY CAFE
Deep
OWL
みんなの別荘　ファミリア

Gas Stations in Kōzushima

1 gas stations within city radius — OpenStreetMap data

ENEOS

Banks in Kōzushima

1 banks within city radius — OpenStreetMap data

七島信用組合

Airports Near Kōzushima

4 airports within the area.

AirportIATAType
Miyakejima AirportMYEMedium Airport
Oshima AirportOIMMedium Airport
Kozushima Airport—Small Airport
Niijima Airport—Small Airport

Post Offices in Kōzushima

1 post offices.

Post OfficeAddress
Kozushima Post Office

Churches & Religious Organizations in Kōzushima

13 religious organizations (IRS tax-exempt data).

NameAddress
Awano Mikoto Jinja
つづき堂
ほうそう神様
与種神社
廿三夜様
日向神社
濤響寺
物忌奈命神社
琴平宮
竜神様
観音堂
那智堂
阿波命神社

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

Volcanoes Near Kōzushima

Volcano Type Elevation Last Eruption
Kozushima Lava dome(s) 572 m 838

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

Download Full City Report

Get a comprehensive, print-ready PDF with all data for Kōzushima.

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Frequently Asked Questions About Kōzushima

What is the population of Kōzushima?

Kōzushima has a population of 1,855 residents and is located in Japan. The population density is 259 people per square mile, spread across 7.2 square miles. The median age of residents is 44.7 years, which is older than the national median of 38.9 years.

Is Kōzushima expensive to live in?

The median household income is $45,800, 39% below the national average of $75,149. The median home value is $166,000 (41% below the U.S. median). Renters pay a median of $830 per month, below the national average of $1,163. The home price-to-income ratio is 3.6x, indicating housing is reasonably affordable relative to local income levels.

What is the weather like in Kōzushima?

Kōzushima enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winter temperatures average 50°F in January, while summers reach an average of 75°F in July. The area receives 161 sunny days per year, below the national average of 205. Annual rainfall totals 96.4 inches.

How is the job market in Kōzushima?

The job market in Kōzushima is very strong, with unemployment at just 2.7% / well below the national rate of 3.6%. There are 59 business establishments in the area.

How much does housing cost in Kōzushima?

The median home value in Kōzushima is $166,000. For renters, the median monthly rent is $830.

Nearby Cities

Shikinejima 2,441 pop · 10.0 mi Miyake 2,273 pop · 23.4 mi Minato 7,877 pop · 33.2 mi Shimoda 21,402 pop · 34.6 mi Kōchi 7,203 pop · 36.3 mi Ōshima 7,102 pop · 40.1 mi Inatori 11,488 pop · 40.1 mi Kawazu-ikadaba 6,870 pop · 40.6 mi Matsuzaki 6,563 pop · 43.3 mi Nishina 7,090 pop · 44.7 mi Toi 5,203 pop · 52.1 mi Itō 68,773 pop · 53.1 mi Izu 30,678 pop · 54.4 mi Shuzenji 16,328 pop · 54.6 mi
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