Prefecture of Japan

Nagano

長野県

Nagano is a prefecture of Japan. It covers about 13,700 km² (5,290 mi²), the 4th largest of the 47 prefectures in Natural Earth’s file for Japan, and about the same size as Montenegro. About 2.0 million people live there (Wikidata, 2021).

50 km
  • Montenegro
  • Nagano

Facts

Area, measured13,700 km²5,290 mi²
Official area13,600 km²Wikidata · agrees with our measure
Share of Japan3.7%of the area of the 47 prefectures
Rank by area4th of 47prefectures of Japan
Population2.0 millionWikidata, 2021
Density148 people per km²
CapitalNagano
Latitude range35°N to 37°N
TypePrefectureJP-20

What the numbers say about Nagano

Beside the regions of other countries

The closest region by area and by people in each of the other countries that have regional pages here, within a factor of 2. All 395 regions side by side.

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Nagano, a prefecture prefecture of Japan: about 13,700 km², shown within Japan at true scale
Outlines are drawn at true scale.
Sources and method
Outline
Natural Earth, 1:10m Admin 1 - States, Provinces, public domain
Boundary
De facto, as drawn by Natural Earth.
Area
Measured on the WGS84 ellipsoid from the full-detail outline, shown rounded. The region’s whole area is counted, every island included.
Official figures
Area, population and capital from Wikidata (CC0), fetched 2026-11-12
Population
Wikidata, 2021. Japan’s units share the 2021 figures where Wikidata has them; the year is shown wherever the figure is.
Matching
Countries come from Natural Earth’s country file. Places whose status is contested and dependencies are never used as automatic matches. A region under 2,500 km² is matched against the small countries and island nations.
Data built
2026-11-12

Full method