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Uonuma

Niigatacity

Photograph of Uonuma
Featured view

Uonuma

Total population

34,483

Air quality index

50Good
Coordinates37.23°, 138.96°

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

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City facts

Overview

Uonuma is a city located in Niigata Prefecture, Japan. As of 1 July 2019, the city had an estimated population of 35,027 in 13,289 households, and a population density of 37 persons per km2. Its total area is 946.76 square kilometres (365.55 sq mi). The city is famous for its koshihikari rice, which commands a premium in the Japanese market.

Read more on Wikipedia

History & geography

Geography

Latitude
37.2303
Longitude
138.9612
Water area
—
View on OpenStreetMap

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

Climate

Air quality

US AQI — Good
50
PM2.5 (µg/m³)
9.1
PM10 (µg/m³)
10.7
Ozone (µg/m³)
86
NO₂ (µg/m³)
6.8

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

Walkability

Amenities nearby

Wildlife & biodiversity

Observations (last 5 yrs, 10 mi)
486
Distinct species (top 10)
10

Most-observed species

  • Brown-eared Bulbul
    Hypsipetes amaurotis (Temminck, 1830) · Aves
    16
  • Black Kite
    Milvus migrans (Boddaert, 1783) · Aves
    13
  • Carrion Crow
    Corvus corone Linnaeus, 1758 · Aves
    12
  • Emerald Damselfly
    Lestes sponsa (Hansemann, 1823) · Insecta
    11
  • Large-billed Crow
    Corvus macrorhynchos Wagler, 1827 · Aves
    10
  • Oriental Turtle-Dove
    Streptopelia orientalis (Latham, 1790) · Aves
    9
  • Eurasian Tree Sparrow
    Passer montanus (Linnaeus, 1758) · Aves
    9
  • Varied Tit
    Poecile varius (Temminck & Schlegel, 1848) · Aves
    9

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

Earthquake history

Quakes ≥ 2.5 (25 yrs, 62 mi)
278
Largest magnitude
6.6
Largest event
2007-07-16

Most recent

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

Photos

Sights & places nearby

Notable people from here

Geography & sun

Nearby airports

Public attention

Books about this place

Recent natural events nearby

Wildfires, storms and other events from NASA EONET (last 12 months, within 250 mi).

Ground air-quality sensors

Recently spotted species

Glacial Apollo
Glacial Apollo
Parnassius glacialis
Seen 2026-05-22
Short-tailed Mamushi
Short-tailed Mamushi
Gloydius blomhoffii
Seen 2026-05-14
Asian fawnlily
Asian fawnlily
Erythronium japonicum
Seen 2026-05-03
field horsetail
field horsetail
Equisetum arvense
Seen 2026-05-03
Holarctic Alderflies
Holarctic Alderflies
Sialis
Seen 2026-05-03
Japanese Carpenter Ant
Japanese Carpenter Ant
Camponotus japonicus
Seen 2026-05-03
Brown Marmorated Stink Bug
Brown Marmorated Stink Bug
Halyomorpha halys
Seen 2026-05-03
Japanese Knotweed Leaf Beetle
Japanese Knotweed Leaf Beetle
Gallerucida bifasciata
Seen 2026-05-03
angel's wings
angel's wings
Pleurocybella porrigens
Seen 2025-10-20

Research-grade observations from iNaturalist (within ~15 mi).

Events

Gallery

Official Identifiers

e-Stat — Statistics Bureau of Japan

JIS code
152251
Population (Wikidata)
34,112
Wikidata
Q850352

JIS X 0402 dantai codes via Wikidata P429

Sources

  • • Wikipedia
  • • Open-Meteo Air Quality (CAMS)
  • • USGS Earthquake Catalog (global feed)
  • • GBIF (Global Biodiversity Information Facility)
  • • iNaturalist
  • • NASA EONET
  • • 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