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Iwase, Japan
Ibaraki · Japan
Iwase is a mid-size city in Ibaraki, Japan with a population of 39,122. Elevation: 161 ft (49 m). Average temperature: 56°F (13°C).
Data updated June 2026
Discover Iwase, Japan
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About Iwase
Iwase was a town located in Nishiibaraki District, Ibaraki Prefecture, Japan.
People
Economy
BHousing
A+Climate
| Population | 39,122 |
| Population Density | 526 / sq mi |
| Elevation | 161 ft (49 m) |
| Coordinates | 36.3500°, 140.1000° |
| Timezone | Asia/Tokyo |
| Country | 🇯🇵 Japan |
| State / Province | Ibaraki |
| Average Temperature | 56°F (13°C) |
| January Average | 36°F (2°C) |
| July Average | 74°F (23°C) |
| Annual Precipitation | 52.2 inches (1,327 mm) |
| Annual Snowfall | 0.0 inches (0 cm) |
| Median Household Income | $32,500 |
| Median Age | 48.5 years |
About Iwase
Iwase is a mid-size city in Japan (Ibaraki) with a population of 39,122. The city sits at an elevation of 161 feet (49 meters) above sea level. The average annual temperature is 56°F (13°C). Temperatures range from 36°F in January to 74°F in July. Annual precipitation averages 52.2 inches. The timezone is Asia/Tokyo.
Population
Language Spoken at Home
Social Characteristics
Iwase vs Japan Average
Income: Iwase vs Japan
Commute Mode
Income
| Median HH Income | $32,500 |
| 57% below Japan avg |
Employment & Poverty
| Unemployment | 2.5% |
| 31% below Japan avg | |
| Establishments (County) | 1,252 |
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 | 15,649 |
Property Tax
Climate in Iwase
Iwase has an average annual temperature of 14.3°C (58°F). The hottest month is Aug (26.1°C), the coldest is Jan (3.6°C). Average annual precipitation is 1588 mm.
Temperature
| Annual Average | 55.6°F |
| 3% above Japan avg | |
| January Average | 36°F (2°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 241 days/yr |
Geography
| Elevation | 161 ft (49 m) |
| Area | 74.3 sq mi (192.5 km²) |
| Population Density | 526/sq mi |
| Coordinates | 36.3500°N, 140.1000°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
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 | 149 km |
| 1495 | KAMAKURA, SAGAMI BAY, TOKAIDO | Earthquake | 5.0 m | 200 | 149 km |
| 1732 | KUJUKURI BEACH, JAPAN | Earthquake | 2.0 m | - | 143 km |
| 1670 | BOSO, JAPAN | Earthquake | 2.0 m | - | 125 km |
| 1938 | JAPAN TRENCH | Earthquake | 0.8 m | - | 123 km |
| 1938 | SANRIKU | Earthquake | 0.8 m | - | 144 km |
| 1982 | IBARAKI, JAPAN | Earthquake | 0.4 m | - | 145 km |
| 1896 | KASHIMA, JAPAN | Earthquake | 0.3 m | - | 82 km |
| 1935 | JAPAN | Earthquake | 0.2 m | - | 120 km |
| 1855 | TOKAIDO | Earthquake | - | 6,757 | 82 km |
| 1782 | ODAWARA, SAGAMI BAY | Eruption + Earthquake | - | - | 144 km |
| 1642 | BOSO, JAPAN | Earthquake | - | - | 136 km |
| 1602 | BOSO, JAPAN | Eruption + Earthquake | - | - | 144 km |
| 1257 | SAGAMI BAY, JAPAN | Earthquake | - | - | 139 km |
| 1241 | KAMAKURA, SAGAMI BAY | Earthquake | - | - | 143 km |
| 818 | TOKAIDO | Eruption + Earthquake | - | - | 147 km |
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Takaharayama (68 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Takaharayama | Stratovolcano | 1,795 m (5,889 ft) | -4570 | 68 km |
| Nantaisan | Stratovolcano | 2,486 m (8,156 ft) | -9540 | 71 km |
| Omanago Group | Lava dome(s) | 2,341 m (7,680 ft) | -3050 | 73 km |
| Nikko-Shiranesan | Shield | 2,578 m (8,458 ft) | 1952 | 82 km |
| Akagisan | Stratovolcano | 1,828 m (5,997 ft) | Unknown | 84 km |
| Nasudake | Stratovolcano(es) | 1,915 m (6,283 ft) | 1963 | 87 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 99 km |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 113 km |
| Numazawa | Shield | 835 m (2,740 ft) | -3400 | 131 km |
| Bandaisan | Stratovolcano | 1,816 m (5,958 ft) | 1888 | 139 km |
| Asamayama | Complex | 2,568 m (8,425 ft) | 2019 | 141 km |
| Kusatsu-Shiranesan | Stratovolcano(es) | 2,165 m (7,103 ft) | 2018 | 144 km |
| Adatarayama | Stratovolcano(es) | 1,728 m (5,669 ft) | 1996 | 145 km |
| Shiga | Shield(s) | 2,041 m (6,696 ft) | Unknown | 146 km |
| Azumayama | Stratovolcano(es) | 1,949 m (6,394 ft) | 1977 | 155 km |
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 1.3 in | Coldest, Driest |
| February | 37°F (3°C) | 2.0 in | |
| March | 43°F (6°C) | 3.3 in | |
| April | 53°F (12°C) | 4.4 in | |
| May | 61°F (16°C) | 5.0 in | |
| June | 67°F (20°C) | 6.5 in | |
| July | 74°F (23°C) | 5.9 in | |
| August | 77°F (25°C) | 5.9 in | Warmest |
| September | 70°F (21°C) | 7.2 in | Wettest |
| October | 60°F (15°C) | 6.3 in | |
| November | 50°F (10°C) | 2.9 in | |
| December | 40°F (5°C) | 1.5 in |
Iwase has a seasonal temperature swing of 41°F / from 36°F in January to 77°F in August. Total annual precipitation is 52.3 inches, with September being the wettest month (7.2") and January the driest (1.3").
Schools in Iwase
12 public schools (NCES 2022-23 data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| 桜川市立 羽黒小学校 | - | - | - | - |
| 桜川市立 大和中学校 | - | - | - | - |
| 桜川市立 大国小学校 | - | - | - | - |
| 桜川市立 雨引小学校 | - | - | - | - |
| 桜川市立 猿田小学校 | - | - | - | - |
| 岩瀬日本大学高等学校 | - | - | - | - |
| 桜川市立岩瀬西中学校 | - | - | - | - |
| 桜川市立坂戸小学校 | - | - | - | - |
| 茨城県立岩瀬高等学校 | - | - | - | - |
| 桜川市立岩瀬小学校 | - | - | - | - |
| 桜川市立南飯田小学校 | - | - | - | - |
| 桜川市立岩瀬東中学校 | - | - | - | - |
Radio Stations near Iwase
0 stations within ~55 km.
| Station | Genre | Quality |
|---|
Museums in Iwase
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| CraftHills Kasama | ||||
| Honda Collection Hall | ||||
| Ibaraki Prefecture Ceramics Museum of Art | ||||
| JAPANCUP MUSIUM | ||||
| Mashiko Sankokan | ||||
| Nature Center | ||||
| Science Museum of Map & Survey | ||||
| Shimotsuke Yakushiji Historical Museum | ||||
| Tsukuba Naval Air Group Memorial Hall | ||||
| Tsukuba Naval Air Group Zero Fighter Exhibition Hall | ||||
| しもだて美術館 | ||||
| つかもと美術記念館 | ||||
| とびやま歴史体験館 | ||||
| 下妻市ふるさと博物館 | ||||
| 二宮尊徳資料館 | ||||
| 四季文化館みの〜れ | ||||
| 四季文化館みの〜れ | ||||
| 安倍晴明展示館 | ||||
| 寺野東遺跡資料館 | ||||
| 小田城跡案内所 | ||||
| 市立小町の館 本館 | ||||
| 市貝町立歴史民俗資料館 | ||||
| 廣澤美術館 | ||||
| 春風萬里荘 | ||||
| 栃木県立博物館 | ||||
| 栃木県立美術館 | ||||
| 根本山自然観察センター | ||||
| 真壁伝承館歴史資料館 | ||||
| 真岡市科学教育センター | ||||
| 笠間日動美術館 | ||||
| 蔵美館 |
Libraries in Iwase
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Akeno Library | 0.0 | |||||
| Art and Physical Education Library | 0.0 | |||||
| Bando City Sashima Library | 0.0 | |||||
| Library | 0.0 | |||||
| Moka City Library | 0.0 | |||||
| Shimotsuma City Library | 0.0 | |||||
| University of Tsukuba Central Library | 0.0 | |||||
| Yachiyo Town Library | 0.0 | |||||
| Yuki Civic Information Center | 0.0 | |||||
| 下野市立 石橋図書館 | 0.0 | |||||
| 下野市立石橋図書館 | 0.0 | |||||
| 南河内図書館 | 0.0 | |||||
| 図書館 | 0.0 | |||||
| 宇都宮女子高等学校図書室 | 0.0 | |||||
| 宇都宮市立 東図書館 | 0.0 | |||||
| 宇都宮市立中央図書館 | 0.0 | |||||
| 宇都宮市立南図書館 | 0.0 | |||||
| 市貝町立図書館 | 0.0 | |||||
| 広沢図書館 | 0.0 | |||||
| 栃木県立図書館 | 0.0 | |||||
| 真壁図書館 | 0.0 | |||||
| 石岡市立図書館 | 0.0 | |||||
| 石岡市立図書館 | 0.0 | |||||
| 笠間市笠間図書館 | 0.0 | |||||
| 筑西市立中央図書館 | 0.0 |
Farmers Markets in Iwase
| Name | Address | Season | Hours | Organic | Website |
|---|---|---|---|---|---|
| JA | |||||
| JA | |||||
| サンフルーツ | |||||
| さん歩の駅サンSUNさぬま | |||||
| 下妻マルシェ | |||||
| 下館丸共青果地方卸売市場 | |||||
| 下館丸共青果地方卸売市場 | |||||
| 宇都宮花き | |||||
| 楽々市 | |||||
| 楽々市 | |||||
| 飛行船マルシェ |
Restaurants in Iwase
10 restaurants within city radius - OpenStreetMap data
Castles in Iwase
2 castles within city radius - OpenStreetMap data
Veterinaries in Iwase
1 veterinaries within city radius - OpenStreetMap data
Train Stations in Iwase
4 train stations within city radius - OpenStreetMap data
Gas Stations in Iwase
4 gas stations within city radius - OpenStreetMap data
Banks in Iwase
1 banks within city radius - OpenStreetMap data
Gyms in Iwase
1 gyms within city radius - OpenStreetMap data
Golf Courses in Iwase
6 golf courses within city radius - OpenStreetMap data
Stadiums & Teams in Iwase
| Team | League | Division |
|---|---|---|
Ski Resorts Near Iwase
3 ski resorts within range.
| Resort | Slopes (km) | Lifts | Peak (m) | Price | Season | Night | Park |
|---|---|---|---|---|---|---|---|
| Nikko Yumoto Onsen Ski Park | 0.0 | - | - | $0 | - | - | - |
| Edelweiss Ski Resort | 0.0 | - | - | $0 | - | - | - |
| Hunter Mountain Shiobara Ski Area | 0.0 | - | - | $0 | - | - | - |
Airports Near Iwase
50 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| Ibaraki Airport | IBR | Large Airport |
| Narita International Airport | NRT | Large Airport |
| Chofu Airport | - | Medium Airport |
| Iruma Air Base | - | Medium Airport |
| JMSDF Shimofusa Air Base | - | Medium Airport |
| Utsunomiya Air Field | - | Medium Airport |
| Air Wing Motor Paraglider School Osato Landing Area | - | Small Airport |
| Akeno Auxiliary Airfield | - | Small Airport |
| Bando Auxiliary Airfield | - | Small Airport |
| Chiyoda Auxiliary Airstrip | - | Small Airport |
| Fukiage Airstrip | - | Small Airport |
| Haneda Gliderport | - | Small Airport |
| Hanyu Gliderport | - | Small Airport |
| Honda Airport | - | Small Airport |
| Hoshubana Gliderport | - | Small Airport |
| Itakura Gliderport | - | Small Airport |
| Iwabuchi Watergate Auxiliary Airfield | - | Small Airport |
| JGSDF Kasumigaura Airfield | - | Small Airport |
| JGSDF Narashino Airfield | - | Small Airport |
| Juo Airfield | - | Small Airport |
| Kazo Gliderport | - | Small Airport |
| Kinugawa Gliderport | - | Small Airport |
| Kozaki Airfield | - | Small Airport |
| Kuge Flying Club Airstrip | - | Small Airport |
| Kumagaya Flying Club Osato Airfield | - | Small Airport |
| Kumagaya Trike Club Airfield | - | Small Airport |
| Makabe Gliderport | - | Small Airport |
| Makado Gliderport | - | Small Airport |
| Menuma Gliderport | - | Small Airport |
| Menuma Number 2 Gliderport | - | Small Airport |
| Mint Airstrip | - | Small Airport |
| Mito Flying Club Airfield | - | Small Airport |
| Namiki Auxiliary Airfield | - | Small Airport |
| Oarai Auxiliary Airfield | - | Small Airport |
| Otone Airfield | - | Small Airport |
| Oyama Kinu Gliderport | - | Small Airport |
| Ryugasaki Airfield | - | Small Airport |
| Sekijo Auxiliary Airfield | - | Small Airport |
| Sekiyado Gliderport | - | Small Airport |
| Shirosato Auxiliary Airfield | - | Small Airport |
| Skyfield Nasu | - | Small Airport |
| Skyfield Watarase | - | Small Airport |
| Tachikawa Airfield | - | Small Airport |
| Tokyo Flight Park Moriya Airstrip | - | Small Airport |
| Tokyo Flying Club Airstrip | - | Small Airport |
| Tsubasa Flying Club Kawashima Auxiliary Airfield | - | Small Airport |
| Tsukuba Gliderport | - | Small Airport |
| Urayasu Emergency Runway | - | Small Airport |
| Utsunomiya Auxiliary Airfield | - | Small Airport |
| Yomiuri Otone Gliderport | - | Small Airport |
Post Offices in Iwase
6 post offices.
| Post Office | Address |
|---|---|
| Amabiki Post Office | |
| Fukuhara Post Office | |
| Higashinaka Post Office | |
| Iwase Post Office | |
| Kitanaka Post Office | |
| Okuni Post Office |
Treatment Centers in Iwase
1 treatment centers.
| Center | Type | Phone |
|---|---|---|
| コモドヴィータ下館 |
Churches & Religious Organizations in Iwase
83 religious organizations (IRS tax-exempt data).
| Name | Address |
|---|---|
| Bando No.24 Rakuho-ji Amabiki-kan-non | |
| Hitachinokuni Izumotaisha Shrine | |
| Ryuja Shrine | |
| Yakujin Shrine | |
| 三所神社 | |
| 二十三夜堂 | |
| 二所神社 | |
| 二所神社 | |
| 二所神社 | |
| 五大力堂 | |
| 今宮神社 | |
| 住吉四所神社 | |
| 元向寺 | |
| 元岩瀬薬師如来 | |
| 光明寺 | |
| 兒育八幡神社 | |
| 八剣神社 | |
| 八坂神社 | |
| 八坂神社 | |
| 八幡神社 |
Quick Facts
🇯🇵 About Japan
Public Holidays in Japan
16 public holidays this year
Frequently Asked Questions About Iwase
What is the population of Iwase?
Iwase has a population of 39,122 residents and is located in Japan. The population density is 526 people per square mile, spread across 74.3 square miles. The median age of residents is 48.5 years, which is older than the national median of 38.9 years.
Is Iwase expensive to live in?
The median household income is $32,500, 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 Iwase?
Iwase enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winter temperatures average 36°F in January, while summers reach an average of 74°F in July. The area receives 241 sunny days per year. Annual rainfall totals 52.2 inches.
How is the job market in Iwase?
The job market in Iwase is very strong, with unemployment at just 2.5% / well below the national rate of 3.6%. There are 1,252 business establishments in the area.
How much does housing cost in Iwase?
The median home value in Iwase is $84,000. For renters, the median monthly rent is $420.