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Koseda, Japan
Kagoshima · Japan
Koseda is a small city in Kagoshima, Japan with a population of 11,858. Elevation: 151 ft (46 m). Average temperature: 61°F (16°C).
Data updated June 2026
Discover Koseda, Japan
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People
Economy
BHousing
A+Climate
| Population | 11,858 |
| Population Density | 8 / sq mi |
| Elevation | 151 ft (46 m) |
| Coordinates | 30.3880°, 130.6492° |
| Timezone | Asia/Tokyo |
| Country | 🇯🇵 Japan |
| State / Province | Kagoshima |
| Average Temperature | 61°F (16°C) |
| January Average | 46°F (8°C) |
| July Average | 76°F (24°C) |
| Annual Precipitation | 123.4 inches (3,133 mm) |
| Annual Snowfall | 0.0 inches (0 cm) |
| Median Household Income | $26,600 |
| Median Age | 50.0 years |
About Koseda
Koseda is a small city in Japan (Kagoshima) with a population of 11,858. The city sits at an elevation of 151 feet (46 meters) above sea level. The average annual temperature is 61°F (16°C). Temperatures range from 46°F in January to 76°F in July. Annual precipitation averages 123.4 inches. The timezone is Asia/Tokyo.
Population
Language Spoken at Home
Social Characteristics
Koseda vs Japan Average
Income: Koseda vs Japan
Commute Mode
Income
| Median HH Income | $26,600 |
| 65% below Japan avg |
Employment & Poverty
| Unemployment | 2.6% |
| 28% below Japan avg | |
| Establishments (County) | 379 |
Business (County)
Tax & Cost of Living
Commute & Transportation
Walkability
Home Value Sources
Ownership Split
Home Values
| Census Median | $64,000 |
| 77% below Japan avg |
Real Estate Market (Redfin)
Rental Costs
| Census Median Rent | $320 |
| 72% below Japan avg |
Ownership & Property
| Housing Units | 4,743 |
Property Tax
Climate in Koseda
Koseda has an average annual temperature of 0°C (32°F). The hottest month is Jan (0°C), the coldest is Jan (0°C). Average annual precipitation is 0 mm.
Temperature
| Annual Average | 61.2°F |
| 13% above Japan avg | |
| January Average | 46°F (8°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 128 days/yr |
Geography
| Elevation | 151 ft (46 m) |
| Area | 1,400.4 sq mi (3,627.1 km²) |
| Population Density | 8/sq mi |
| Coordinates | 30.3880°N, 130.6492°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Tsunami History
7 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1780 | SW. KYUSHU ISLAND | Astronomical | 6.0 m | - | 135 km |
| 1914 | SEIKAIDO | Eruption | 3.0 m | 63 | 133 km |
| 1996 | KYUSHU ISLAND | Earthquake | 0.2 m | - | 47 km |
| 1961 | RYUKYU ISLANDS | Earthquake | 0.2 m | - | 141 km |
| 1781 | SW. KYUSHU ISLAND | Astronomical | - | 38 | 133 km |
| 1780 | SW. KYUSHU ISLAND | Astronomical | - | - | 135 km |
| 766 | N. KAGOSHIMA BAY | Astronomical | - | - | 135 km |
Nearby Volcanoes
10 volcanoes within 200 km. Closest: Kuchinoerabujima (42 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Kuchinoerabujima | Stratovolcano(es) | 657 m (2,156 ft) | 2020 | 42 km |
| Kikai | Caldera | 704 m (2,310 ft) | 2020 | 56 km |
| Kuchinoshima | Stratovolcano(es) | 628 m (2,060 ft) | 1190 | 84 km |
| Ata | Caldera(s) | 924 m (3,031 ft) | 885 | 93 km |
| Nakanoshima | Stratovolcano(es) | 979 m (3,212 ft) | 1914 | 96 km |
| Suwanosejima | Stratovolcano(es) | 796 m (2,612 ft) | 2020 | 123 km |
| Aira | Caldera | 1,117 m (3,665 ft) | 2020 | 134 km |
| Akusekijima | Stratovolcano(es) | 555 m (1,821 ft) | Unknown | 145 km |
| Yonemaru-Sumiyoshiike | Maar(s) | 40 m (131 ft) | -6200 | 154 km |
| Kirishimayama | Shield | 1,700 m (5,577 ft) | 2018 | 173 km |
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 46°F (8°C) | 6.1 in | Coldest |
| February | 47°F (8°C) | 7.1 in | |
| March | 52°F (11°C) | 9.4 in | |
| April | 59°F (15°C) | 11.0 in | |
| May | 64°F (18°C) | 14.4 in | |
| June | 70°F (21°C) | 19.8 in | Wettest |
| July | 76°F (24°C) | 12.3 in | |
| August | 76°F (25°C) | 11.5 in | Warmest |
| September | 73°F (23°C) | 11.2 in | |
| October | 66°F (19°C) | 7.8 in | |
| November | 58°F (14°C) | 7.0 in | |
| December | 50°F (10°C) | 5.6 in | Driest |
Koseda has a seasonal temperature swing of 31°F / from 46°F in January to 76°F in August. Total annual precipitation is 123.4 inches, with June being the wettest month (19.8") and December the driest (5.6").
Schools in Koseda
4 public schools (NCES 2022-23 data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| 町立安房中学校 | - | - | - | - |
| 町立小瀬田中学校 | - | - | - | - |
| 町立小瀬田小学校 | - | - | - | - |
| Anbo Elementary School | - | - | - | - |
Radio Stations near Koseda
0 stations within ~55 km.
| Station | Genre | Quality |
|---|
Museums in Koseda
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| Scent museum | ||||
| Yakushima Sea Turtle Museum | ||||
| Yakushima World Heritage Conservation Center | ||||
| 屋久島町歴史民俗資料館 | ||||
| 屋久島町歴史民俗資料館 |
Libraries in Koseda
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Onoaida Library | 0.0 |
Hotels in Koseda
8 hotels within city radius - OpenStreetMap data
Restaurants in Koseda
22 restaurants within city radius - OpenStreetMap data
Cafes in Koseda
9 cafes within city radius - OpenStreetMap data
Clinics in Koseda
1 clinics within city radius - OpenStreetMap data
Gas Stations in Koseda
2 gas stations within city radius - OpenStreetMap data
Banks in Koseda
1 banks within city radius - OpenStreetMap data
Airports Near Koseda
4 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| New Tanegashima Airport | TNE | Medium Airport |
| Yakushima Airport | KUM | Medium Airport |
| Mageshima Airport | - | Small Airport |
| Satsuma Iōjima Airport | - | Small Airport |
Post Offices in Koseda
4 post offices.
| Post Office | Address |
|---|---|
| 安房郵便局 | |
| 小瀬田郵便局 | |
| 春牧簡易郵便局 | |
| 永久保簡易郵便局 |
UNESCO World Heritage Sites Near Koseda
1 UNESCO sites.
| Site | Category | Year |
|---|---|---|
| Yakushima National Park |
Churches & Religious Organizations in Koseda
6 religious organizations (IRS tax-exempt data).
| Name | Address |
|---|---|
| Jochiku Tomari Mausoleum | |
| Morihisa Shrine | |
| 創価学会 | |
| 椨川神社 | |
| 若宮神社 | |
| 長峰神社 |
Quick Facts
🇯🇵 About Japan
UNESCO World Heritage Sites Near Koseda
Public Holidays in Japan
16 public holidays this year
Frequently Asked Questions About Koseda
What is the population of Koseda?
Koseda has a population of 11,858 residents and is located in Japan. The population density is 8 people per square mile, spread across 1,400.4 square miles. The median age of residents is 50.0 years, which is older than the national median of 38.9 years.
Is Koseda expensive to live in?
The median household income is $26,600, 65% below the national average of $75,149. The median home value is $64,000 (77% below the U.S. median). Renters pay a median of $320 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 Koseda?
Koseda enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winter temperatures average 46°F in January, while summers reach an average of 76°F in July. The area receives 128 sunny days per year, below the national average of 205. Annual rainfall totals 123.4 inches.
How is the job market in Koseda?
The job market in Koseda is very strong, with unemployment at just 2.6% / well below the national rate of 3.6%. There are 379 business establishments in the area.
How much does housing cost in Koseda?
The median home value in Koseda is $64,000. For renters, the median monthly rent is $320.