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Koga, Japan
Fukuoka · Japan
Koga is a mid-size city in Fukuoka, Japan with a population of 58,786. Elevation: 33 ft (10 m). Average temperature: 61°F (16°C).
Data updated June 2026
Discover Koga, 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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People
Economy
BHousing
A+Climate
| Population | 58,786 |
| Population Density | 3,620 / sq mi |
| Elevation | 33 ft (10 m) |
| Coordinates | 33.7333°, 130.4667° |
| Timezone | Asia/Tokyo |
| Country | 🇯🇵 Japan |
| State / Province | Fukuoka |
| Average Temperature | 61°F (16°C) |
| January Average | 42°F (6°C) |
| July Average | 79°F (26°C) |
| Annual Precipitation | 66.1 inches (1,679 mm) |
| Annual Snowfall | 0.0 inches (0 cm) |
| Median Household Income | $32,000 |
| Median Age | 47.0 years |
About Koga
Koga is a mid-size city in Japan (Fukuoka) with a population of 58,786. The city sits at an elevation of 33 feet (10 meters) above sea level. The average annual temperature is 61°F (16°C). Temperatures range from 42°F in January to 79°F in July. Annual precipitation averages 66.1 inches. The timezone is Asia/Tokyo.
Population
Language Spoken at Home
Social Characteristics
Koga vs Japan Average
Income: Koga vs Japan
Commute Mode
Income
| Median HH Income | $32,000 |
| 57% below Japan avg |
Employment & Poverty
| Unemployment | 2.9% |
| 19% below Japan avg | |
| Establishments (County) | 1,881 |
Business (County)
Tax & Cost of Living
Commute & Transportation
Walkability
Home Value Sources
Ownership Split
Home Values
| Census Median | $84,000 |
| 70% below Japan avg |
Real Estate Market (Redfin)
Rental Costs
| Census Median Rent | $420 |
| 64% below Japan avg |
Ownership & Property
| Housing Units | 23,514 |
Property Tax
Climate in Koga
Koga has an average annual temperature of 17.6°C (64°F). The hottest month is Aug (28.9°C), the coldest is Jan (7°C). Average annual precipitation is 1696 mm.
Temperature
| Annual Average | 60.5°F |
| 12% above Japan avg | |
| January Average | 42°F (6°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 216 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 16.2 sq mi (42.1 km²) |
| Population Density | 3,620/sq mi |
| Coordinates | 33.7333°N, 130.4667°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Tsunami History
8 tsunamis recorded within 500 km. Highest wave on record: 55.0 m (180 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1792 | SHIMABARA BAY, KYUSHU ISLAND | Landslide | 55.0 m | 15,000 | 110 km |
| 1596 | BEPPU BAY, KYUSHU | Eruption + Earthquake | 8.0 m | 708 | 124 km |
| 1828 | AMAKUSA SEA | Earthquake | — | — | 137 km |
| 1715 | SEIKAIDO | Earthquake | — | — | 124 km |
| 1698 | SEIKAIDO-NANKAIDO | Earthquake | — | — | 124 km |
| 1619 | YATSUSHIRO, JAPAN | Earthquake | — | — | 138 km |
| 1597 | BEPPU BAY, JAPAN | Eruption + Earthquake | — | 40 | 116 km |
| 744 | SW. KYUSHU ISLAND | Earthquake | — | 1,520 | 148 km |
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Yufu-Tsurumi (99 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Yufu-Tsurumi | Lava dome(s) | 1,584 m (5,197 ft) | 867 | 99 km |
| Kujusan | Stratovolcano(es) | 1,791 m (5,876 ft) | 1996 | 102 km |
| Unzendake | Complex | 1,483 m (4,865 ft) | 1996 | 109 km |
| Asosan | Caldera | 1,592 m (5,223 ft) | 2020 | 112 km |
| Abu | Shield(s) | 641 m (2,103 ft) | -6850 | 135 km |
| Fukue | Shield(s) | 315 m (1,033 ft) | -400 | 192 km |
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (6°C) | 3.0 in | Coldest |
| February | 43°F (6°C) | 3.2 in | |
| March | 48°F (9°C) | 4.2 in | |
| April | 57°F (14°C) | 5.6 in | |
| May | 65°F (18°C) | 5.8 in | |
| June | 71°F (22°C) | 10.5 in | |
| July | 79°F (26°C) | 11.0 in | Wettest |
| August | 81°F (27°C) | 6.1 in | Warmest |
| September | 74°F (23°C) | 7.7 in | |
| October | 64°F (18°C) | 3.6 in | |
| November | 55°F (13°C) | 3.1 in | |
| December | 47°F (8°C) | 2.4 in | Driest |
Koga has a seasonal temperature swing of 38°F / from 42°F in January to 81°F in August. Total annual precipitation is 66.1 inches, with July being the wettest month (11.0") and December the driest (2.4").
Schools in Koga
15 public schools (NCES 2022-23 data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| 古賀養護学校 | — | — | — | — |
| 市立古賀中学校 | — | — | — | — |
| 市立古賀東中学校 | — | — | — | — |
| 市立古賀東小学校 | — | — | — | — |
| 市立舞の里小学校 | — | — | — | — |
| 市立花鶴小学校 | — | — | — | — |
| 市立青柳小学校 | — | — | — | — |
| 県立玄界高等学校 | — | — | — | — |
| 福岡県公立古賀竟成館高等学校 | — | — | — | — |
| 県立古賀特別支援学校 | — | — | — | — |
| 市立千鳥小学校 | — | — | — | — |
| 市立花見小学校 | — | — | — | — |
| 市立小野小学校 | — | — | — | — |
| 私立古賀北中学校 | — | — | — | — |
| 市立古賀西小学校 | — | — | — | — |
Radio Stations near Koga
0 stations within ~55 km.
| Station | Genre | Quality |
|---|
Museums in Koga
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| Flower Museum | ||||
| Fukuoka Asian Art Museum | ||||
| Fukuoka City Art Museum | ||||
| Fukuoka City Museum | ||||
| Fukuoka City Science Museum | ||||
| Fureai Culture Museum | ||||
| Fureai Culture Museum | ||||
| Hakata History Museum | ||||
| Hakata Machiya Folk Museum | ||||
| Hakata Port Bayside Museum | ||||
| Kyushu National Museum | ||||
| Kyushu National Museum | ||||
| Machiya Hall | ||||
| Medical Museum of Kyushu University | ||||
| Nokonoshima Museum | ||||
| Treasure Hall | ||||
| Yasushima museum | ||||
| 久我美術館 | ||||
| 九州大学総合研究博物館 | ||||
| 九州産業大学美術館 | ||||
| 伊都国歴史博物館 | ||||
| 伊都民俗資料館 | ||||
| 修猷資料館 | ||||
| 動物科学館 | ||||
| 博多の食と文化の博物館ハクハク | ||||
| 味楽窯美術館 | ||||
| 嘉麻市立織田慶喜美術館・碓井郷土館 | ||||
| 多賀谷美術館 | ||||
| 大宰府展示館 | ||||
| 大野城市歴史資料展示室 | ||||
| 大野城心のふるさと館 | ||||
| 宇美八幡宮宝物殿 | ||||
| 宇美町立歴史民俗資料館 | ||||
| 宗像大社神宝館 | ||||
| 宝蔵 | ||||
| 宮地嶽神社民家村自然広苑 | ||||
| 岩﨑記代子音楽記念館 | ||||
| 志免町歴史資料室 | ||||
| 新宮町立歴史資料館 | ||||
| 春日奴国の丘歴史資料館 | ||||
| 東郷神社宝物館 | ||||
| 板付遺跡弥生館 | ||||
| 王塚装飾古墳館 | ||||
| 福岡二日市文学館 | ||||
| 福岡市埋蔵文化財センター | ||||
| 福岡東洋陶磁美術館 | ||||
| 福岡県立美術館 | ||||
| 筑紫野市歴史博物館（ふるさと館ちくしの） | ||||
| 粕屋町立歴史資料館 | ||||
| 芦屋歴史民俗資料館 | ||||
| 芦屋釜の里 | ||||
| 西南学院大学博物館 | ||||
| 野方遺跡住居跡展示館 | ||||
| 鞍手町歴史民俗資料館 | ||||
| 須惠町立歴史民俗資料館 | ||||
| 飯塚市歴史資料館 |
Libraries in Koga
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Fukuoka City Public Library | 0.0 | |||||
| Kasuya Town Library | 0.0 | |||||
| Kasuya Town Library | 0.0 | |||||
| Kyushu University Central Library | 0.0 | |||||
| Sasaguri Town Library | 0.0 | |||||
| Science and Technology Library | 0.0 | |||||
| Wajiro Library | 0.0 | |||||
| おおまち文庫 | 0.0 | |||||
| カメリアステージ | 0.0 | |||||
| 中間市民図書館 | 0.0 | |||||
| 久山町民図書館 | 0.0 | |||||
| 久山町民図書館 | 0.0 | |||||
| 九州登山情報センター | 0.0 | |||||
| 博多南図書館 | 0.0 | |||||
| 博多南図書館 | 0.0 | |||||
| 古賀市立図書館 | 0.0 | |||||
| 嘉麻市立碓井図書館 | 0.0 | |||||
| 城南図書館 | 0.0 | |||||
| 城南図書館 | 0.0 | |||||
| 大野城まどかぴあ図書館 | 0.0 | |||||
| 大野城まどかぴあ図書館 | 0.0 | |||||
| 太宰府市民図書館 | 0.0 | |||||
| 宗像市民図書館中央館 | 0.0 | |||||
| 宗像市民図書館深田分館 | 0.0 | |||||
| 宗像市民図書館須恵分館 | 0.0 | |||||
| 岡垣サンリーアイ図書館 | 0.0 | |||||
| 志免町立町民図書館 | 0.0 | |||||
| 志免町立町民図書館 | 0.0 | |||||
| 新宮町立図書館 | 0.0 | |||||
| 早良南図書館 | 0.0 | |||||
| 春日市民図書館 | 0.0 | |||||
| 春日市民図書館 | 0.0 | |||||
| 桂川町立図書館 | 0.0 | |||||
| 水巻町図書館 | 0.0 | |||||
| 福岡大学中央図書館 | 0.0 | |||||
| 福岡女子短期大学 図書館 | 0.0 | |||||
| 福岡市 南図書館 | 0.0 | |||||
| 福岡市 南図書館 | 0.0 | |||||
| 福岡市中央図書館 | 0.0 | |||||
| 福岡市南図書館 | 0.0 | |||||
| 福岡市南図書館 | 0.0 | |||||
| 福岡市博多南図書館 | 0.0 | |||||
| 福岡市博多南図書館 | 0.0 | |||||
| 福岡市博多図書館 | 0.0 | |||||
| 福岡市博多図書館 | 0.0 | |||||
| 福岡市早良図書館 | 0.0 | |||||
| 福岡市早良図書館 | 0.0 | |||||
| 福岡市東図書館 | 0.0 | |||||
| 福岡市東図書館 | 0.0 | |||||
| 福岡市西図書館 | 0.0 | |||||
| 福岡市西図書館 | 0.0 | |||||
| 福岡市西部図書館 | 0.0 | |||||
| 福岡点字図書館 | 0.0 | |||||
| 福岡点字図書館 | 0.0 | |||||
| 福岡県立図書館 | 0.0 | |||||
| 福岡県立図書館 別館・こども図書館 | 0.0 | |||||
| 福津市立図書館 | 0.0 | |||||
| 筑穂町立ちくほ図書館 | 0.0 | |||||
| 筑紫野市民図書館 | 0.0 | |||||
| 芦屋町図書館 | 0.0 | |||||
| 西南学院大学図書館 | 0.0 | |||||
| 遠賀町立図書館 | 0.0 | |||||
| 遠賀町立図書館 | 0.0 | |||||
| 那珂川図書館 | 0.0 | |||||
| 須恵町立図書館 | 0.0 | |||||
| 飯塚市立図書館 | 0.0 | |||||
| 飯塚市立穂波図書館 | 0.0 |
Farmers Markets in Koga
| Name | Address | Season | Hours | Organic | Website |
|---|---|---|---|---|---|
| ITOSAISAI Farmer's Market | |||||
| Yoshiduka Little Asian Market | |||||
| Yoshiduka Little Asian Market | |||||
| 福岡市中央卸売市場 鮮魚市場 | |||||
| 福岡花市場 |
Hotels in Koga
2 hotels within city radius — OpenStreetMap data
Restaurants in Koga
8 restaurants within city radius — OpenStreetMap data
Cafes in Koga
1 cafes within city radius — OpenStreetMap data
Dentists in Koga
1 dentists within city radius — OpenStreetMap data
Train Stations in Koga
3 train stations within city radius — OpenStreetMap data
Bus Stations in Koga
1 bus stations within city radius — OpenStreetMap data
Gas Stations in Koga
4 gas stations within city radius — OpenStreetMap data
Banks in Koga
2 banks within city radius — OpenStreetMap data
Gyms in Koga
1 gyms within city radius — OpenStreetMap data
Golf Courses in Koga
1 golf courses within city radius — OpenStreetMap data
Breweries in Koga
| Name | Type | Address | Phone | Website |
|---|---|---|---|---|
| Toyomura Sake Brewing Company Ltd. |
Stadiums & Teams in Koga
| Team | League | Division |
|---|---|---|
Ski Resorts Near Koga
1 ski resorts within range.
| Resort | Slopes (km) | Lifts | Peak (m) | Price | Season | Night | Park |
|---|---|---|---|---|---|---|---|
| Tenzan Ski Resort | 0.0 | — | — | $0 | — | — | — |
Airports Near Koga
12 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| Fukuoka Airport | FUK | Large Airport |
| Kitakyushu Airport | KKJ | Large Airport |
| Kyushu Saga International Airport | HSG | Large Airport |
| Iki Airport | IKI | Medium Airport |
| JASDF Ashiya Air Base | — | Medium Airport |
| JASDF Tsuiki Air Base | — | Medium Airport |
| Aso Auxiliary Airfield | — | Small Airport |
| Imari Flying Club Airfield | — | Small Airport |
| JGSDF Metabaru Airfield | — | Small Airport |
| Kita-Ariake Auxiliary Airfield | — | Small Airport |
| Ozuki Airfield | — | Small Airport |
| Ubuyama Auxiliary Airfield | — | Small Airport |
Post Offices in Koga
7 post offices.
| Post Office | Address |
|---|---|
| 古賀米多比郵便局 | |
| 古賀舞の里郵便局 | |
| 古賀花見郵便局 | |
| 古賀花鶴丘郵便局 | |
| 古賀郵便局 | |
| 古賀駅前郵便局 | |
| 青柳郵便局 |
Treatment Centers in Koga
15 treatment centers.
| Center | Type | Phone |
|---|---|---|
| LETSクラブ高取 | ||
| あんどう泌尿器科クリニック | ||
| おなか心療クリニック | ||
| たろうクリニック | ||
| のぞみメンタルクリニック | ||
| 丘の上皮膚科アレルギー科 | ||
| 中島こうや内科クリニック | ||
| 博多レディスクリニック | ||
| 坂本眼科クリニック | ||
| 天神頭痛クリニック | ||
| 宿久耳鼻咽喉科 | ||
| 府川医院 Fukawa Clinic General Internal Medicine (English Speaking) | ||
| 明仁会都築病院 | ||
| 肛門科胃腸科コロプロクリニック | ||
| 黒田整形外科 |
Churches & Religious Organizations in Koga
5 religious organizations (IRS tax-exempt data).
| Name | Address |
|---|---|
| 五所八幡宮 | |
| 古賀神社 | |
| 若八幡宮 | |
| 谷山神社 (Taniyama Shrine) | |
| 長泉寺 |
Quick Facts
🇯🇵 About Japan
Public Holidays in Japan
16 public holidays this year
Frequently Asked Questions About Koga
What is the population of Koga?
Koga has a population of 58,786 residents and is located in Japan. The population density is 3,620 people per square mile, spread across 16.2 square miles. The median age of residents is 47.0 years, which is older than the national median of 38.9 years.
Is Koga expensive to live in?
The median household income is $32,000, 57% below the national average of $75,149. The median home value is $84,000 (70% below the U.S. median). Renters pay a median of $420 per month, below the national average of $1,163. The home price-to-income ratio is 2.6x, indicating housing is reasonably affordable relative to local income levels.
What is the weather like in Koga?
Koga enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winter temperatures average 42°F in January, while summers reach an average of 79°F in July. The area receives 216 sunny days per year. Annual rainfall totals 66.1 inches.
How is the job market in Koga?
The job market in Koga is very strong, with unemployment at just 2.9% / well below the national rate of 3.6%. There are 1,881 business establishments in the area.
How much does housing cost in Koga?
The median home value in Koga is $84,000. For renters, the median monthly rent is $420.