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Isen, Japan
Kagoshima · Japan
Isen is a small city in Kagoshima, Japan with a population of 6,594. Elevation: 253 ft (77 m). Average temperature: 71°F (22°C).
Data updated June 2026
Discover Isen, Japan
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About Isen
Isen is a town located on Tokunoshima, in Ōshima District, Kagoshima Prefecture, Japan. As of 30 November 2024, the town had an estimated population of 6,137 in 3048 households and a population density of 10 persons per km2. The total area of the village is 62.71 km2 (24.21 sq mi).
People
Economy
BHousing
A+Climate
| Population | 6,594 |
| Population Density | 14 / sq mi |
| Elevation | 253 ft (77 m) |
| Coordinates | 27.6761°, 128.9372° |
| Timezone | Asia/Tokyo |
| Country | 🇯🇵 Japan |
| State / Province | Kagoshima |
| Average Temperature | 71°F (22°C) |
| January Average | 58°F (15°C) |
| July Average | 83°F (28°C) |
| Annual Precipitation | 90.0 inches (2,287 mm) |
| Annual Snowfall | 0.0 inches (0 cm) |
| Median Household Income | $26,600 |
| Median Age | 50.0 years |
About Isen
Isen is a small city in Japan (Kagoshima) with a population of 6,594. The city sits at an elevation of 253 feet (77 meters) above sea level. The average annual temperature is 71°F (22°C). Temperatures range from 58°F in January to 83°F in July. Annual precipitation averages 90.0 inches. The timezone is Asia/Tokyo.
Population
Language Spoken at Home
Social Characteristics
Isen vs Japan Average
Income: Isen 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) | 211 |
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 | 2,638 |
Property Tax
Temperature
| Annual Average | 70.7°F |
| 31% above Japan avg | |
| January Average | 58°F (15°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 173 days/yr |
Geography
| Elevation | 253 ft (77 m) |
| Area | 467.0 sq mi (1,209.6 km²) |
| Population Density | 14/sq mi |
| Coordinates | 27.6761°N, 128.9372°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 2.6 m (8 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1995 | RYUKYU ISLANDS | Earthquake | 2.6 m | - | 125 km |
| 1995 | RYUKYU ISLANDS | Eruption + Earthquake | 1.5 m | - | 128 km |
| 1901 | RYUKYU ISLANDS | Earthquake | 0.3 m | - | 139 km |
| 1911 | RYUKYU ISLANDS | Earthquake | - | 12 | 111 km |
| 1664 | TORISHIMA, RYUKYU ISLANDS | Astronomical | - | - | 70 km |
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Io-Torishima (74 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Io-Torishima | Complex | 212 m (696 ft) | 1968 | 74 km |
| Yokoate-jima | Stratovolcano(es) | 495 m (1,624 ft) | 1835 | 125 km |
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 58°F (15°C) | 5.1 in | Coldest |
| February | 59°F (15°C) | 5.5 in | |
| March | 63°F (17°C) | 6.6 in | |
| April | 68°F (20°C) | 9.0 in | |
| May | 73°F (23°C) | 10.6 in | |
| June | 78°F (25°C) | 12.4 in | Wettest |
| July | 83°F (28°C) | 8.1 in | Warmest |
| August | 82°F (28°C) | 8.4 in | |
| September | 80°F (27°C) | 6.8 in | |
| October | 75°F (24°C) | 6.6 in | |
| November | 69°F (20°C) | 6.5 in | |
| December | 62°F (17°C) | 4.7 in | Driest |
Isen has a seasonal temperature swing of 24°F / from 58°F in January to 83°F in July. Total annual precipitation is 90.0 inches, with June being the wettest month (12.4") and December the driest (4.7").
Schools in Isen
11 public schools (NCES 2022-23 data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| 伊仙町立面縄小学校 | - | - | - | - |
| 伊仙町立伊仙小学校 | - | - | - | - |
| 伊仙町立伊仙中学校 | - | - | - | - |
| 伊仙町立面縄中学校 | - | - | - | - |
| 伊仙町立犬田布小学校 | - | - | - | - |
| 伊仙町立犬田布中学校 | - | - | - | - |
| 伊仙町立糸木名小学校 | - | - | - | - |
| 伊仙町立鹿浦小学校 | - | - | - | - |
| 伊仙町立馬根小学校 | - | - | - | - |
| 伊仙町立阿権小学校 | - | - | - | - |
| 伊仙町立喜念小学校 | - | - | - | - |
Radio Stations near Isen
0 stations within ~55 km.
| Station | Genre | Quality |
|---|
Museums in Isen
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| 伊仙町歴史民俗資料館 |
Libraries in Isen
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| 天城町立図書館 | 0.0 | |||||
| 徳之島町立図書館 | 0.0 |
Airports Near Isen
3 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| Okinoerabu Airport | OKE | Medium Airport |
| Tokunoshima Airport | TKN | Medium Airport |
| Yoron Airport | RNJ | Medium Airport |
Post Offices in Isen
9 post offices.
| Post Office | Address |
|---|---|
| 伊仙郵便局 | |
| 喜念簡易郵便局 | |
| 検福簡易郵便局 | |
| 河地簡易郵便局 | |
| 犬田布郵便局 | |
| 目手久簡易郵便局 | |
| 阿三簡易郵便局 | |
| 面繩郵便局 | |
| 鹿浦郵便局 |
Quick Facts
🇯🇵 About Japan
Public Holidays in Japan
16 public holidays this year
Frequently Asked Questions About Isen
What is the population of Isen?
Isen has a population of 6,594 residents and is located in Japan. The population density is 14 people per square mile, spread across 467.0 square miles. The median age of residents is 50.0 years, which is older than the national median of 38.9 years.
Is Isen 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 Isen?
Isen has a warm climate with an average annual temperature of 71°F (22°C). Winter temperatures average 58°F in January, while summers reach an average of 83°F in July. The area receives 173 sunny days per year, below the national average of 205. Annual rainfall totals 90.0 inches.
How is the job market in Isen?
The job market in Isen is very strong, with unemployment at just 2.6% / well below the national rate of 3.6%. There are 211 business establishments in the area.
How much does housing cost in Isen?
The median home value in Isen is $64,000. For renters, the median monthly rent is $320.