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Kōzan, Japan

Hiroshima · Japan

Kōzan is a small city in Hiroshima, Japan with a population of 15,125. Elevation: 1,106 ft (337 m). Average temperature: 57°F (14°C).

Data updated June 2026

4.2 /5.0
A Great
15,125 Population 136/sq mi density
1,106 ft Elevation 337 meters
57°F Avg Temperature 14°C
62.6 in Annual Rain
Asia / Tokyo Timezone
$32,400 Median Income
A
Overall
4.2 / 5.0
Great overall score based on economy, affordability, safety and education
B
Economy
3.3 / 5.0
$32,400 median income, 2.4% unemployment
A+
Affordability
5.0 / 5.0
$84,000 home value, $420/mo rent

Discover Kōzan, 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

About Kōzan

Kōzan was a town located in Sera District, Hiroshima Prefecture, Japan.

People

Population15,125
Median Age47.8 yrs
Density136/mi²

Economy

B
Median Income$32,400
Unemployment2.4%

Housing

A+
Home Value$84,000
Rent$420
Housing Units6,050

Climate

Avg Temp57°F (14°C)
Rain62.6 in/yr
Sunny Days222/yr
Elevation1,106 ft (337 m)
Population15,125
Population Density136 / sq mi
Elevation1,106 ft (337 m)
Coordinates34.5833°, 133.0500°
TimezoneAsia/Tokyo
Country🇯🇵 Japan
State / ProvinceHiroshima
Average Temperature57°F (14°C)
January Average37°F (3°C)
July Average77°F (25°C)
Annual Precipitation62.6 inches (1,589 mm)
Annual Snowfall0.0 inches (0 cm)
Median Household Income$32,400
Median Age47.8 years

About Kōzan

Kōzan is a small city in Japan (Hiroshima) with a population of 15,125. The city sits at an elevation of 1,106 feet (337 meters) above sea level. The average annual temperature is 57°F (14°C). Temperatures range from 37°F in January to 77°F in July. Annual precipitation averages 62.6 inches. The timezone is Asia/Tokyo.

Kōzan has a population of 15,125 with a density of 136 people per square mile, spread across 110.9 square miles. The median age is 47.8 years, 23% older than the national median of 38.9.

Population

15,125
Total Population
136
People / sq mi
47.8yrs
Median Age
23% above Japan avg
110.9mi²
Land Area

Language Spoken at Home

Other Languages 100.0%

Social Characteristics

Kōzan vs Japan Average

The median household income in Kōzan is $32,400, which is 57% below the national average of $75,149. The unemployment rate is 2.4% (below the 3.6% US average). The area has 484 business establishments.

Income: Kōzan vs Japan

Commute Mode

Income

Median HH Income$32,400
57% below Japan avg

Employment & Poverty

Unemployment2.4%
33% below Japan avg
Establishments (County)484

Business (County)

Tax & Cost of Living

Commute & Transportation

Walkability

The median home value in Kōzan is $84,000, 70% below the national median of $281,900. Monthly rent averages $420 (64% below the national average of $1,163). There are 6,050 total housing units in the city. The home price-to-income ratio is 2.6x, well within the affordable range.

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 Units6,050

Property Tax

Climate in Kōzan

Kōzan 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 1089 mm.

Month Avg °C / °F Min / Max °C Rain (mm)
Jan 0°C / 32°F - / 9.1° 24.9
Feb 0°C / 32°F - / 9.4° 55.6
Mar 0°C / 32°F - / 12.4° 89.4
Apr 0°C / 32°F - / 18.9° 100.2
May 0°C / 32°F - / 23.2° 108.4
Jun 0°C / 32°F - / 26.7° 206.8
Jul 0°C / 32°F - / 30.6° 160.3
Aug 0°C / 32°F - / 32.5° 72.4
Sep 0°C / 32°F - / 28.1° 135.3
Oct 0°C / 32°F - / 22.7° 67.4
Nov 0°C / 32°F - / 16.9° 48.4
Dec 0°C / 32°F - / 11.7° 19.4
Kōzan enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 37°F in January while summers reach 77°F in July. The area gets 222 sunny days per year, above the national average. Annual precipitation totals 62.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,106 feet.

Temperature

37°F Jan (3°C) 77°F Jul (25°C)
Annual Average56.9°F
5% above Japan avg
January Average37°F (3°C)
July Average77°F (25°C)
Sunny Days222 days/yr

Geography

Elevation1,106 ft (337 m)
Area110.9 sq mi (287.1 km²)
Population Density136/sq mi
Coordinates34.5833°N, 133.0500°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 62.6"
65% above Japan avg
Snowfall 0.0"
Wettest Month (Jun) 10.00"
Driest Month (Dec) 1.93"

Air Quality

Earthquake History

101 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.8. Most recent: M4.4 on Jun 29, 2025.

Mar 24, 2001 16 km SSW of Kure, Japan M6.8 74 km
Oct 6, 2000 8 km ESE of Matsue, Japan M6.7 97 km
Jun 25, 1997 17 km E of Hagi, Japan M5.9 134 km
Apr 8, 2018 8 km NNE of ?dach?-?da, Japan M5.7 88 km
Aug 28, 1991 9 km SSW of Yasugich?, Japan M5.5 85 km
Oct 8, 2000 32 km N of Sh?bara, Japan M5.4 63 km
Sep 16, 2002 24 km SW of Kurayoshi, Japan M5.3 93 km
Sep 3, 1997 21 km S of Yasugich?, Japan M5.3 73 km
Mar 25, 2001 22 km WNW of H?j?, Japan M5.2 78 km
Oct 8, 2000 8 km SSW of Yonago, Japan M5.2 90 km
Apr 26, 2007 15 km ESE of Niihama, Japan M5.1 84 km
Aug 14, 1993 19 km SW of ?zu, Japan M5.0 148 km
Jun 3, 2011 9 km ENE of G?tsuch?, Japan M5.0 83 km
Jan 3, 1991 22 km W of ?zu, Japan M5.0 139 km
Jun 18, 2021 1 km ENE of ?zu, Japan M4.9 128 km
Jan 9, 2001 40 km W of ?zu, Japan M4.9 141 km
Aug 30, 1993 16 km WSW of ?zu, Japan M4.9 142 km
Feb 26, 2024 18 km N of Yawatahama, Japan M4.9 122 km
Sep 28, 1990 24 km NNW of Kariya, Japan M4.9 117 km
May 26, 2005 6 km SSW of Kan’onjich?, Japan M4.8 78 km
Source: USGS (M2.5+, 1990-2025)

Hurricane History

47 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3. Most recent: Lan (2023).

Year Name Category Closest
2023 Lan Category 1 263 km
2022 Nanmadol Category 1 251 km
2019 Francisco Category 1 294 km
2018 Jebi Category 3 167 km
2018 Trami Category 1 198 km
2018 Cimaron Category 1 151 km
2017 Noru Category 1 173 km
2016 Malakas Category 1 203 km
2015 Goni Category 3 199 km
2015 Nangka Category 1 211 km
2014 Phanfone Category 2 280 km
2014 Halong Category 1 178 km
2012 Jelawat Category 1 279 km
2011 Ma-on Category 1 167 km
2008 Sinlaku Category 1 251 km
2007 Usagi Category 2 140 km
2007 Man-yi Category 1 211 km
2006 Shanshan Category 1 252 km
2005 Nabi Category 2 170 km
2004 Songda Category 2 111 km
Source: NOAA IBTrACS (Cat 1+, 1980-2026)

Tsunami History

3 tsunamis recorded within 500 km. Highest wave on record: 10.0 m (33 ft).

Year Location Cause Max Wave Deaths Distance
1026 OFF MASUDA, SHIMANE PREFECTURE Earthquake 10.0 m 1,001 117 km
1872 SW. HONSHU ISLAND Earthquake 3.0 m 804 102 km
1711 SEIONAIKAI, JAPAN Earthquake 2.0 m 1,000 93 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

3 volcanoes within 200 km. Closest: Sanbesan (73 km).

Name Type Elevation Last Eruption Distance
Sanbesan Stratovolcano 1,126 m (3,694 ft) 650 73 km
Abu Shield(s) 641 m (2,103 ft) -6850 133 km
Oki-Dogo Shield 151 m (495 ft) Unknown 179 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 37°F (3°C) 2.2 in Coldest
February 38°F (3°C) 2.8 in
March 44°F (7°C) 3.9 in
April 54°F (12°C) 5.6 in
May 62°F (17°C) 5.8 in
June 69°F (21°C) 10.0 in Wettest
July 77°F (25°C) 9.7 in
August 79°F (26°C) 5.6 in Warmest
September 71°F (22°C) 7.8 in
October 60°F (16°C) 4.4 in
November 50°F (10°C) 2.7 in
December 42°F (5°C) 1.9 in Driest

Kōzan has a seasonal temperature swing of 42°F / from 37°F in January to 79°F in August. Total annual precipitation is 62.6 inches, with June being the wettest month (10.0") and December the driest (1.9").

View full weather details →

Schools in Kōzan

22 public schools (NCES 2022-23 data).

School Level Enrollment Teachers Student/Teacher
町立大田小学校 - - - -
市立上下南小学校 - - - -
町立津久志小学校 - - - -
県立久井高等学校 - - - -
県立世羅高等学校 - - - -
町立西大田小学校 - - - -
町立甲山小学校 - - - -
町立甲山中学校 - - - -
町立東小学校 - - - -
町立宇津戸小学校 - - - -
町立大見小学校 - - - -
中央小学校 - - - -
町立伊尾小学校 - - - -
町立中央小学校 - - - -
町立世羅中学校 - - - -
市立羽和泉小学校 - - - -
市立神田東小学校 - - - -
市立神田小学校 - - - -
尾道市立御調西小学校 - - - -
市立小童小学校 - - - -
市立久井小学校 - - - -
市立久井中学校 - - - -
View full schools details →

Radio Stations near Kōzan

0 stations within ~55 km.

Station Genre Quality

Museums in Kōzan

NameTypeAddressPhoneAnnual Revenue
Kenkichi_Nakamura
Mihara city history of folk Museum
MOU 尾道市立大学美術館
Onomichi City Museum of Art
Takehara Museum of Historical and Folk Materials
おのみち映画資料館
おのみち歴史博物館
おのみち歴史博物館
たけはら美術館
三原市歴史民俗資料館
三良坂平和美術館
大浜埼灯台記念館(旧大浜崎通航潮流信号所)
大田庄歴史館
山波とんど&こけしの館
広島県立みよし風土記の丘・広島県立歴史民俗資料館
庄原市総領郷土資料館
府中家具木工資料館
府中市歴史民俗資料館
愛新美術館
松永はきもの資料館
栗原歴史民俗資料館
浄土寺宝物館
福山市しんいち歴史民俗博物館
芙美子記念館
貝原歴史資料館
辻村寿三郎人形館

Libraries in Kōzan

NameAddressStaffAnnual VisitsCirculationCollectionPrograms
Onomichi Municipal Library0.0
三原市立中央図書館0.0
三原市立中央図書館0.0
三原市立久井図書館0.0
三原市立大和図書館0.0
三原市立本郷図書館0.0
三次市立三和図書館0.0
三次市立三良坂図書館0.0
三次市立吉舎図書館0.0
三次市立図書館0.0
三次市立甲奴図書館0.0
世羅町せらにし図書館0.0
世羅町世羅図書館0.0
世羅町甲山図書館0.0
中央図書館0.0
尾道市立みつぎ子ども図書館0.0
尾道市立大学付属図書館0.0
尾道市立大学付属図書館0.0
市立竹原書院図書館0.0
庄原市立図書館総領分館0.0
府中市立図書館0.0
東広島市立河内こども図書館0.0
神石高原町シルトピアカレッジ図書館0.0
福山市松永図書館0.0
附属図書館0.0
附属図書館分館0.0

Farmers Markets in Kōzan

NameAddressSeasonHoursOrganicWebsite
JA三次
協同組合三次総合卸センター
風季舎昌平本家

Hotels in Kōzan

1 hotels within city radius - OpenStreetMap data

天然温泉尾道ふれあいの里

Restaurants in Kōzan

1 restaurants within city radius - OpenStreetMap data

レストラン タイニー

Train Stations in Kōzan

4 train stations within city radius - OpenStreetMap data

Bingo-Mikawa
Bingo-Yano
Kajita
Konu

Golf Courses in Kōzan

3 golf courses within city radius - OpenStreetMap data

久井CC
尾道CC
尾道GC

Breweries in Kōzan

NameTypeAddressPhoneWebsite
Onomichi Brewery
Shimanami Brewery

Stadiums & Teams in Kōzan

TeamLeagueDivision

Ski Resorts Near Kōzan

9 ski resorts within range.

Resort Slopes (km) Lifts Peak (m) Price Season Night Park
Ski Park Kanbiki 0.0 - - $0 - - -
Mizuho Highland 0.0 - - $0 - - -
Asahi Tengston Snow Park 0.0 - - $0 - - -
Snow Resort Nekoyama 0.0 - - $0 - - -
Kotobiki Forest Park Ski Area 0.0 - - $0 - - -
Dogoyama-Kougen Ski Resort 0.0 - - $0 - - -
Kenmin no Mori Ski Area 0.0 - - $0 - - -
Ibukinosato Ski Area 0.0 - - $0 - - -
Hiruzen Bear Valley Ski Resort 0.0 - - $0 - - -

Airports Near Kōzan

3 airports within the area.

AirportIATAType
Hiroshima AirportHIJLarge Airport
Hoei Airstrip-Small Airport
Kasaoka Air Station-Small Airport

Post Offices in Kōzan

22 post offices.

Post OfficeAddress
Haizumi Post Office
Higashi Post Office
Higashiuehara Summary Post Office
Hirosada Post Office
Imatsuno Summary Post Office
Kanda Post Office
Kiyotsuna Summary Post Office
Konu Post Office
Kozan Post Office
Kui Post Office
Kyomaru Summary Post Office
Mikawa Post Office
Nishiota Post Office
Oguni Post Office
Okumura Summary Post Office
Okusa Pos Office
Omi Post Office
Sera Ota Post Office
Tsukushi Post Office
Uzuto Post Office
Waki Post Office
Yano Summary Post Office

Churches & Religious Organizations in Kōzan

7 religious organizations (IRS tax-exempt data).

NameAddress
宇津戸地頭八幡神社
宇津戸領家八幡神社
照善寺
照善寺
積善寺
観音寺
観音寺

Quick Facts

Timezone
Asia/Tokyo

🇯🇵 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 Kōzan.

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Frequently Asked Questions About Kōzan

What is the population of Kōzan?

Kōzan has a population of 15,125 residents and is located in Japan. The population density is 136 people per square mile, spread across 110.9 square miles. The median age of residents is 47.8 years, which is older than the national median of 38.9 years.

Is Kōzan expensive to live in?

The median household income is $32,400, 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 Kōzan?

Kōzan enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winter temperatures average 37°F in January, while summers reach an average of 77°F in July. The area receives 222 sunny days per year. Annual rainfall totals 62.6 inches.

How is the job market in Kōzan?

The job market in Kōzan is very strong, with unemployment at just 2.4% / well below the national rate of 3.6%. There are 484 business establishments in the area.

How much does housing cost in Kōzan?

The median home value in Kōzan is $84,000. For renters, the median monthly rent is $420.

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