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Kai, Japan

Yamanashi · Japan

Kai is a mid-size city in Yamanashi, Japan with a population of 75,313. Elevation: 1,115 ft (340 m). Average temperature: 50°F (10°C).

Data updated June 2026

4.1 /5.0
A Great
75,313 Population 1,672/sq mi density
1,115 ft Elevation 340 meters
50°F Avg Temperature 10°C
55.2 in Annual Rain
Asia / Tokyo Timezone
$30,600 Median Income
A
Overall
4.1 / 5.0
Great overall score based on economy, affordability, safety and education
B
Economy
3.2 / 5.0
$30,600 median income, 2.2% unemployment
A+
Affordability
5.0 / 5.0
$74,000 home value, $370/mo rent

Discover Kai, 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

People

Population75,313
Median Age49.2 yrs
Density1,672/mi²

Economy

B
Median Income$30,600
Unemployment2.2%

Housing

A+
Home Value$74,000
Rent$370
Housing Units30,125

Climate

Avg Temp50°F (10°C)
Rain55.2 in/yr
Sunny Days236/yr
Elevation1,115 ft (340 m)
Population75,313
Population Density1,672 / sq mi
Elevation1,115 ft (340 m)
Coordinates35.6846°, 138.5098°
TimezoneAsia/Tokyo
Country🇯🇵 Japan
State / ProvinceYamanashi
Average Temperature50°F (10°C)
January Average31°F (-1°C)
July Average69°F (21°C)
Annual Precipitation55.2 inches (1,401 mm)
Annual Snowfall4.4 inches (11 cm)
Median Household Income$30,600
Median Age49.2 years

About Kai

Kai is a mid-size city in Japan (Yamanashi) with a population of 75,313. The city sits at an elevation of 1,115 feet (340 meters) above sea level. The average annual temperature is 50°F (10°C). Temperatures range from 31°F in January to 69°F in July. Annual precipitation averages 55.2 inches. The timezone is Asia/Tokyo.

Kai has a population of 75,313 with a density of 1,672 people per square mile, spread across 45.1 square miles. The median age is 49.2 years, 26% older than the national median of 38.9.

Population

75,313
Total Population
1,672
People / sq mi
49.2yrs
Median Age
26% above Japan avg
45.1mi²
Land Area

Language Spoken at Home

Other Languages 100.0%

Social Characteristics

Kai vs Japan Average

The median household income in Kai is $30,600, which is 59% below the national average of $75,149. The unemployment rate is 2.2% (below the 3.6% US average). The area has 110 business establishments, including 35 restaurants.

Income: Kai vs Japan

Commute Mode

Income

Median HH Income$30,600
59% below Japan avg

Employment & Poverty

Unemployment2.2%
39% below Japan avg
Establishments (County)110

Business (County)

Restaurants35
Healthcare27
Retail19

Tax & Cost of Living

Commute & Transportation

Walkability

The median home value in Kai is $74,000, 74% below the national median of $281,900. Monthly rent averages $370 (68% below the national average of $1,163). There are 30,125 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$74,000
74% below Japan avg

Real Estate Market (Redfin)

Rental Costs

Census Median Rent$370
68% below Japan avg

Ownership & Property

Housing Units30,125

Property Tax

Climate in Kai

Kai 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 1127 mm.

Month Avg °C / °F Min / Max °C Rain (mm)
Jan 0°C / 32°F - / - 31.0
Feb 0°C / 32°F - / - 56.5
Mar 0°C / 32°F - / - 71.3
Apr 0°C / 32°F - / - 81.0
May 0°C / 32°F - / - 75.8
Jun 0°C / 32°F - / - 105.4
Jul 0°C / 32°F - / - 144.5
Aug 0°C / 32°F - / - 120.0
Sep 0°C / 32°F - / - 153.4
Oct 0°C / 32°F - / - 194.0
Nov 0°C / 32°F - / - 46.0
Dec 0°C / 32°F - / - 48.5
Kai experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 31°F in January while summers reach 69°F in July. The area gets 236 sunny days per year, above the national average. Annual precipitation totals 55.2 inches (wetter than the 38-inch national average). The area receives 4.4 inches of snow annually. The city sits at an elevation of 1,115 feet.

Temperature

31°F Jan (-1°C) 69°F Jul (21°C)
Annual Average50.4°F
7% below Japan avg
January Average31°F (-1°C)
July Average69°F (21°C)
Sunny Days236 days/yr

Geography

Elevation1,115 ft (340 m)
Area45.1 sq mi (116.7 km²)
Population Density1,672/sq mi
Coordinates35.6846°N, 138.5098°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 55.2"
45% above Japan avg
Snowfall 4.4"
Wettest Month (Sep) 8.27"
Driest Month (Dec) 1.14"

Air Quality

Earthquake History

1,045 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.4. Most recent: M4.1 on Aug 23, 2025.

Feb 20, 1990 28 km E of Shimoda, Japan M6.4 128 km
Aug 10, 2009 8 km NE of Sagara, Japan M6.2 107 km
Mar 11, 2011 13 km E of Arai, Japan M6.2 148 km
May 4, 2014 31 km ESE of It?, Japan M6.0 119 km
Mar 15, 2011 6 km NNW of Fujinomiya, Japan M6.0 46 km
Jan 15, 2007 15 km WSW of Heda, Japan M5.9 89 km
Jul 23, 2005 9 km WSW of Ichihara, Japan M5.9 135 km
Aug 1, 2011 20 km E of ?yama, Japan M5.9 117 km
Apr 16, 2011 6 km ENE of Tanuma, Japan M5.8 129 km
Feb 1, 1992 4 km SSE of Miura, Japan M5.8 121 km
Feb 25, 2013 29 km NE of Numata, Japan M5.8 145 km
Mar 11, 2011 eastern Honshu, Japan M5.7 141 km
Nov 9, 2013 3 km WSW of Moriya, Japan M5.6 134 km
Apr 20, 2006 16 km SE of It?, Japan M5.6 112 km
Mar 4, 1997 9 km SSW of It?, Japan M5.6 100 km
Mar 16, 1997 5 km NE of Toyokawa, Japan M5.6 134 km
Mar 6, 1996 13 km NNE of Gotenba, Japan M5.6 51 km
May 3, 1998 14 km SW of It?, Japan M5.6 100 km
Feb 15, 2005 2 km NNW of Iwatsuki, Japan M5.5 111 km
Apr 11, 2011 8 km WSW of Iiyama, Japan M5.5 127 km
Source: USGS (M2.5+, 1990-2025)

Hurricane History

38 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Ampil (2024).

Year Name Category Closest
2024 Ampil Category 3 295 km
2019 Faxai Category 4 116 km
2019 Hagibis Category 2 81 km
2018 Jongdari Category 2 166 km
2018 Jebi Category 1 248 km
2018 Shanshan Category 1 255 km
2017 Lan Category 1 281 km
2016 Mindulle Category 1 178 km
2014 Phanfone Category 1 88 km
2011 Roke Category 3 67 km
2009 Melor Category 1 256 km
2009 Krovanh Category 1 274 km
2008 Sinlaku Category 1 284 km
2007 Fitow Category 1 63 km
2005 Mawar Category 2 111 km
2004 Ma-on Category 4 90 km
2004 Chaba Category 1 287 km
2003 Etau Category 1 209 km
2002 Higos Category 2 113 km
2001 Danas Category 1 105 km
Source: NOAA IBTrACS (Cat 1+, 1980-2026)

Tsunami History

16 tsunamis recorded within 500 km. Highest wave on record: 13.0 m (43 ft).

Year Location Cause Max Wave Deaths Distance
1923 SAGAMI BAY Earthquake 13.0 m 105,385 111 km
1495 KAMAKURA, SAGAMI BAY, TOKAIDO Earthquake 5.0 m 200 111 km
1433 OFF IZU-OSHIMA Earthquake 2.0 m - 125 km
2009 HONSHU: S COAST Earthquake 0.6 m 1 107 km
1980 HONSHU ISLAND Earthquake 0.6 m - 115 km
1978 TOKAIDO Earthquake 0.4 m 25 119 km
1974 TOKAIDO Earthquake 0.2 m 30 122 km
1990 JAPAN Earthquake 0.2 m - 128 km
1857 TOKAIDO Earthquake - - 100 km
1855 TOKAIDO Earthquake - 6,757 117 km
1782 ODAWARA, SAGAMI BAY Eruption + Earthquake - - 126 km
1633 SAGAMI BAY Earthquake - 150 83 km
1589 SURUGA, JAPAN Earthquake - - 102 km
1257 SAGAMI BAY, JAPAN Earthquake - - 105 km
1241 KAMAKURA, SAGAMI BAY Earthquake - - 97 km
818 TOKAIDO Eruption + Earthquake - - 90 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Fujisan (41 km).

Name Type Elevation Last Eruption Distance
Fujisan Stratovolcano 3,776 m (12,388 ft) 1708 41 km
Yokodake Stratovolcano(es) 2,480 m (8,136 ft) 1200 48 km
Hakoneyama Complex 1,438 m (4,718 ft) 2015 68 km
Asamayama Complex 2,568 m (8,425 ft) 2019 80 km
Harunasan Stratovolcano 1,449 m (4,754 ft) 550 93 km
Ontakesan Complex 3,067 m (10,062 ft) 2014 96 km
Norikuradake Stratovolcano(es) 3,026 m (9,928 ft) -50 98 km
Izu-Tobu Pyroclastic cone(s) 1,406 m (4,613 ft) 1989 102 km
Yakedake Stratovolcano(es) 2,455 m (8,054 ft) 1995 103 km
Kusatsu-Shiranesan Stratovolcano(es) 2,165 m (7,103 ft) 2018 104 km
Shiga Shield(s) 2,041 m (6,696 ft) Unknown 112 km
Akagisan Stratovolcano 1,828 m (5,997 ft) Unknown 115 km
Washiba-Kumonotaira Shield(s) 2,924 m (9,593 ft) Unknown 115 km
Midagahara Stratovolcano 2,621 m (8,599 ft) 1839 129 km
Izu-Oshima Stratovolcano 758 m (2,487 ft) 1990 134 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 31°F (-1°C) 1.3 in Coldest
February 31°F (-0°C) 1.9 in
March 37°F (3°C) 3.3 in
April 48°F (9°C) 4.3 in
May 56°F (14°C) 4.8 in
June 63°F (17°C) 7.6 in
July 69°F (21°C) 6.7 in
August 71°F (22°C) 8.2 in Warmest
September 64°F (18°C) 8.3 in Wettest
October 54°F (12°C) 5.3 in
November 45°F (7°C) 2.5 in
December 36°F (2°C) 1.1 in Driest

Kai has a seasonal temperature swing of 41°F / from 31°F in January to 71°F in August. Total annual precipitation is 55.2 inches, with September being the wettest month (8.3") and December the driest (1.1").

View full weather details →

Colleges & Universities in Kai

Institution Type Founded Website
帝京学園短期大学 College - ,

Schools in Kai

14 public schools (NCES 2022-23 data).

School Level Enrollment Teachers Student/Teacher
市立千代田小学校 - - - -
市立敷島北小学校 - - - -
私立ヘーグル小学校 - - - -
私立日本航空高等学校 - - - -
市立双葉中学校 - - - -
甲斐市立竜王北小学校 - - - -
甲斐市立竜王北中学校 - - - -
甲斐市立双葉西小学校 - - - -
甲斐市立敷島小学校 - - - -
Kai Shikishima Junior High School - - - -
甲斐市立双葉東小学校 - - - -
甲斐市立敷島南小学校 - - - -
Kofu Hokusei Junior High School - - - -
甲府市立羽黒小学校 - - - -
View full schools details →

Radio Stations near Kai

0 stations within ~55 km.

Station Genre Quality

Museums in Kai

NameTypeAddressPhoneAnnual Revenue
Dormouse Museum
Hirayama Ikuo Silk Road Museum
Ichikawa Misato Town Folklore Museum
Itchiku Kubota Art Museum
Kawaguchiko Muse Hall
Kiyosato Porcelain Museum
Kunimasu Museum
nakamura Keith Haring Collection
Paul Rusch Memorial Museum
Shingen-Mochi Factory Theme Park
Suntory Museum of Whisky
The Village Of The Village of Kiso, Meynobu Town
Treasure Stone Museum
Wine Museum
オルゴール博物館ホール・オブ・ホールズ
クニマス
クリスタルミュージアム
シャトレーゼローマンガラス美術館
なかとみ現代工芸美術館
なるさわ富士山博物館
フィリア美術館
やまなし伝統工芸館
三分一湧水館展望ホール
中央市豊富郷土資料館
中村キースへリング美術館
井戸尻考古館
信玄公宝物館
八ケ岳泰雲書道美術館
北杜市小淵沢郷土資料館
北杜市考古資料館
北杜市長坂郷土資料館
北杜市須玉歴史資料館
南アルプス市立春仙美術館
南アルプス市立白根桃源美術館
嘯月美術館
坂井考古館
大泉歴史民俗資料館
宝物殿
富士川町民俗資料館
富士見町歴史民俗資料館
小さな蔵の美術館
山梨大学赤レンガ館
山梨県立博物館
山梨県立文学館
山梨県立科学館
山梨県立美術館
山梨県立考古博物館
市川三郷町ふるさと会館・文化資料館・民族資料館
市川三郷町ふるさと会館文化資料館
市立勝沼ぶどうの国文化館
恩賜林記念館
早川町歴史民俗資料館
早川町郷土資料館
武川民俗資料館
武田氏館跡歴史館
河口湖自動車博物館 自動車館
河口湖自動車博物館 飛行舘
清春白樺美術館
甘草屋敷
甲州市中央公民館歴史民俗資料室
甲府市民俗資料館
登美の丘ワイナリー資料館
県立八ヶ岳ふれあいセンター
石和写真美術館
石和町民俗文化財展示館
笛吹市春日居郷土館
笛吹市青楓美術館
美枝きもの資料館
藤村記念館
身延町歴史民俗資料館
釈迦堂遺跡博物館
韮崎大村美術館
韮崎市民俗資料館

Libraries in Kai

NameAddressStaffAnnual VisitsCirculationCollectionPrograms
はしば文庫0.0
わかくさ図書館0.0
中央図書館0.0
中央市立玉穂生涯学習館0.0
中央市立田富図書館0.0
勝沼町図書館0.0
北杜市すたま森の図書館0.0
北杜市たかね図書館0.0
北杜市ながさか図書館0.0
北杜市むかわ図書館0.0
北杜市むかわ図書館0.0
北杜市ライブラリーはくしゅう0.0
北杜市小淵沢図書館0.0
北杜市明野図書館0.0
北杜市金田一春彦記念図書館0.0
北杜市金田一春彦記念図書館0.0
南アルプス市立わかくさ図書館0.0
南アルプス市立八田農業情報関連図書館0.0
南アルプス市立櫛形図書館芦安分館0.0
南アルプス市立甲西図書室0.0
南アルプス市立白根桃源図書館0.0
図書館0.0
塩山市立図書館0.0
塩山市立図書館分館0.0
富士河口湖町立図書館0.0
山梨市立図書館0.0
山梨県立図書館0.0
市川三郷町立図書館三珠分館0.0
昭和町立図書館0.0
甲府市立図書館0.0
甲斐市立双葉図書館0.0
甲斐市立敷島図書館0.0
甲斐市立竜王図書館0.0
笛吹市一宮図書館0.0
笛吹市八代図書館0.0
笛吹市境川図書室0.0
笛吹市御坂図書館0.0
笛吹市春日居ふるさと図書館0.0
笛吹市石和図書館0.0
韮崎市立図書館0.0

Farmers Markets in Kai

NameAddressSeasonHoursOrganicWebsite
道の駅南きよさと

Hotels in Kai

1 hotels within city radius - OpenStreetMap data

神の湯温泉

Restaurants in Kai

11 restaurants within city radius - OpenStreetMap data

Big Boy
Gusto
Gyū-Kaku
Yumean
カレーうどん屋 咲々
グラッチェガーデンズ
パノラマ台駅
手打ちそば 三好庵
茶屋
辛夷(トラック飯)
鳥兆

Dentists in Kai

2 dentists within city radius - OpenStreetMap data

岩下歯科
米山歯科クリニック

Train Stations in Kai

3 train stations within city radius - OpenStreetMap data

Ryuo
Shiozaki
竜王

Bus Stations in Kai

1 bus stations within city radius - OpenStreetMap data

高速バスステーション

Gas Stations in Kai

9 gas stations within city radius - OpenStreetMap data

Cosmo
ENEOS
ENEOS
ENEOS
ENEOS
ENEOS
Esso
Showa Shell
Showa Shell

Banks in Kai

6 banks within city radius - OpenStreetMap data

Kofu Shinkin Bank
Yamanashi Chuo Bank
山梨中央銀行
山梨信用金庫
山梨県民信用組合
甲府信用金庫

Shopping Malls in Kai

1 shopping malls within city radius - OpenStreetMap data

LAZA WALK Kaihutaba

Breweries in Kai

NameTypeAddressPhoneWebsite
Persona Brewery

Stadiums & Teams in Kai

TeamLeagueDivision

Ski Resorts Near Kai

23 ski resorts within range.

Resort Slopes (km) Lifts Peak (m) Price Season Night Park
Tateshina Tokyu Ski Area 0.0 - - $0 - - -
Prince Hotels and Resorts Karuizawa 0.0 - - $0 - - -
Saku Ski Garden Parada 0.0 - - $0 - - -
Blanche Takayama 0.0 - - $0 - - -
Shirakaba Kogen Kokusai Ski 0.0 - - $0 - - -
Echo Valley 0.0 - - $0 - - -
Asahi Prime Ski Area 0.0 - - $0 - - -
Kurumayama Kogen SKYPARK 0.0 - - $0 - - -
Shirakabako Royal Hill 0.0 - - $0 - - -
Family Gelände Kirigamine Ski Area 0.0 - - $0 - - -
Shirakaba 2 in 1 0.0 - - $0 - - -
Pilatus Tateshina Snow Resort 0.0 - - $0 - - -
Fujiyama Snow Resort Yeti 0.0 - - $0 - - -
Yachiho Kōgen Ski Resort 0.0 - - $0 - - -
Chateraise Ski Valley Koumi 0.0 - - $0 - - -
Sun Meadows Kiyosato Ski Area 0.0 - - $0 - - -
Chateraise Ski Valley Nobeyama 0.0 - - $0 - - -
Fujimi Kougen Snow Resort 0.0 - - $0 - - -
Fujimi Panorama Resort 0.0 - - $0 - - -
Chuo-do Ina Ski Resort 0.0 - - $0 - - -
Komagane Ski Resort 0.0 - - $0 - - -
Kamui Misaka Ski 0.0 - - $0 - - -
Fujiten Snow Resort 0.0 - - $0 - - -

Airports Near Kai

13 airports within the area.

AirportIATAType
Shinshu-Matsumoto AirportMMJMedium Airport
Fujikawa Airstrip-Small Airport
Futaba Airport-Small Airport
Isesaki Auxiliary Airfield-Small Airport
Izu Flying Club Airfield-Small Airport
Kamisato Gliderport-Small Airport
Kannami Glider Park-Small Airport
Kannami Hang Glider Landing Field-Small Airport
Kawane Skypark Gliderport-Small Airport
Kirigamine Gliderport-Small Airport
Miho Airfield-Small Airport
Nirasaki Gliderport-Small Airport
Oshino Sky Sports Club-Small Airport

Post Offices in Kai

9 post offices.

Post OfficeAddress
双葉竜地郵便局
双葉郵便局
吉沢郵便局
敷島島上条郵便局
昇仙峡
松島郵便局
甲府千塚町郵便局
甲府山宮簡易郵便局
竜王郵便局

Churches & Religious Organizations in Kai

1 religious organizations (IRS tax-exempt data).

NameAddress
Shosenkyo Gorge

Explore Near Kai

Waterfalls
1
Natural waterfalls documented by USGS and OpenStreetMap contributors
View all →

Quick Facts

Timezone
Asia/Tokyo

Around Kai

Places within 5 km radius - OpenStreetMap data

Schools 58
Hospitals 11
Pharmacies 16
Restaurants 35
Cafes 5
Bars 2
Supermarkets 19
Banks 18
Museums 3
Hotels 4
Libraries 4
Parks 45
Police Stations 12
Fire Stations 6
Places of Worship 4

Things to See Near Kai

1 places within 15 km

🌄 Viewpoints (1)
  • • Viewpoint of Mt. Fuji and Sakura Wanitsuka

🇯🇵 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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Get a comprehensive, print-ready PDF with all data for Kai.

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Frequently Asked Questions About Kai

What is the population of Kai?

Kai has a population of 75,313 residents and is located in Japan. The population density is 1,672 people per square mile, spread across 45.1 square miles. The median age of residents is 49.2 years, which is older than the national median of 38.9 years.

Is Kai expensive to live in?

The median household income is $30,600, 59% below the national average of $75,149. The median home value is $74,000 (74% below the U.S. median). Renters pay a median of $370 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 Kai?

Kai has a four-season climate with an average annual temperature of 50°F (10°C). Winter temperatures average 31°F in January, while summers reach an average of 69°F in July. The area receives 236 sunny days per year. Annual rainfall totals 55.2 inches, with 4.4 inches of snow.

How is the job market in Kai?

The job market in Kai is very strong, with unemployment at just 2.2% / well below the national rate of 3.6%. There are 110 business establishments in the area, including 35 restaurants and food service locations.

How much does housing cost in Kai?

The median home value in Kai is $74,000. For renters, the median monthly rent is $370.

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