What is the population of Ichihara, Chiba?

Ichihara has a population of approximately 269,524 according to the latest available open data.

Where is Ichihara, Chiba located?

Ichihara is located in Chiba, Japan, at approximate coordinates 35.4978°, 140.1157°.

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Ichihara

Chibacity

Featured view

Ichihara

Total population

269,524

Air quality index

64Moderate

Coordinates35.50°, 140.12°

Demographic figures from Statistics Bureau of Japan. Overview below cites Wikipedia and may reference a different year.

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City facts

Overview

Ichihara is a city, located in Chiba Prefecture, Japan. As of 1 December 2020, the city had an estimated population of 274,117 in 128,316 households and a population density of 240 people per km2. The total area of the city is 368.20 square kilometres (142.16 sq mi). The city is home, together with the city of Chiba, to the JEF United football club. The whole city is also part of the Greater Tokyo Area.

History & geography

Geography

Latitude

35.4978

Longitude

140.1157

Water area

—

View on OpenStreetMap

Coordinates & boundaries from the US Census TIGER/Line shapefiles.

Climate

Air quality

US AQI — Moderate

PM2.5 (µg/m³)

13.9

PM10 (µg/m³)

18.2

Ozone (µg/m³)

NO₂ (µg/m³)

26.4

Current readings from Open-Meteo Air Quality API (Copernicus CAMS European reanalysis).

Walkability

Amenities nearby

Wildlife & biodiversity

Observations (last 5 yrs, 10 mi)

11,942

Distinct species (top 10)

Most-observed species

Brown-eared Bulbul
Hypsipetes amaurotis (Temminck, 1830) · Aves
385
Large-billed Crow
Corvus macrorhynchos Wagler, 1827 · Aves
359
White Wagtail
Motacilla alba Linnaeus, 1758 · Aves
345
Cinereous Tit
Parus cinereus Vieillot, 1818 · Aves
332
Oriental Turtle-Dove
Streptopelia orientalis (Latham, 1790) · Aves
313
Carrion Crow
Corvus corone Linnaeus, 1758 · Aves
304
Great Cormorant/European Shag
Phalacrocorax carbo (Linnaeus, 1758) · Aves
280
Eurasian Tree Sparrow
Passer montanus (Linnaeus, 1758) · Aves
267

Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).

Earthquake history

Quakes ≥ 2.5 (25 yrs, 62 mi)

1,593

Largest magnitude

6.2

Largest event

2011-04-21

Most recent

M 5.8 — 2026-06-26
3 km SE of Yokoshiba, Japan
M 5.5 — 2026-06-16
4 km NW of Noda, Japan
M 4.2 — 2026-05-29
3 km ESE of Mobara, Japan
M 4 — 2026-05-24
3 km W of Fussa, Japan
M 4.3 — 2026-05-23
18 km ENE of Ōhara, Japan
M 4.3 — 2026-05-12
6 km SW of Oyama, Japan

Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).

Photos

Sights & places nearby

Notable people from here

Masatada Ishii

Japanese association football player and manager

Shuhei Aoyama

Japanese motorcycle racer

Hirotoshi Ishii

baseball player

Mirei Kiritani

Japanese actress and model

Shigeru Joshima

Japanese actor and musician

Yuki Okubo

Japanese association football player

Kohei Kudo

Japanese association football player

Takahiro Ao

Japanese boxer

Yuki Uekusa

Japanese association football player

Keisuke Endo

Japanese association football player

Neko Hiroshi

Japanese-born comedian and marathon runner

Daisuke Ito

Japanese association football player

Harumi Nemoto

Japanese model

Hideki Kadowaki

Japanese martial artist

Katsushige Kawashima

Japanese boxer

Mikio Ōsawa

People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.

Geography & sun

Avg solar (kWh/m²/day)

3.77

Annual solar (kWh/m²)

1,378

Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.

Nearby airports

Public attention

Wikipedia views (last 30 days)

Avg daily Wikipedia views

Attention level

Obscure

Pageview totals from the Wikimedia Pageviews API.

Books about Ichihara

Shimosuzuno iseki

Ichihara-shi Bunkazai Sentā · 1987

Kawanaka iseki

Ichihara-shi Bunkazai Sentā · 1987

Shimogayadai iseki

Ichihara-shi Bunkazai Sentā · 1987

Sawa iseki

Ichihara-shi Bunkazai Sentā · 1987

Kamiōhori iseki

Ichihara-shi Bunkazai Sentā · 1987

Uruido Nishiyama iseki

Ichihara-shi Bunkazai Sentā · 1986

Chikasui tekisei riyōryō chōsa hōkokusho

Chiba-ken (Japan). Suiseika · 1980

Ichihara-shi kadowaki iseki

Chiba-ken Bunkazai Sentā · 1985

Search results from Open Library.

Recent natural events nearby

Ground air-quality sensors

Recently spotted species

Events

Gallery

Official Identifiers

e-Stat — Statistics Bureau of Japan

JIS code: 122190
Population (Wikidata): 268,038
Wikidata: Q207881

JIS X 0402 dantai codes via Wikidata P429

Sources

• Wikipedia
• Wikidata
• Open-Meteo Air Quality (CAMS)
• USGS Earthquake Catalog (global feed)
• GBIF (Global Biodiversity Information Facility)
• Open-Meteo / sunrise-sunset.org
• Wikipedia Pageviews API
• Open Library
• e-Stat / Statistics Bureau of Japan — JIS X 0402 dantai code via Wikidata P429 (prefecture, municipality)
• e-Stat — Statistics Bureau of Japan — JIS X 0402 dantai codes via Wikidata P429