Isumi Shi, Chiba

County Snapshot

Isumi Shi at a glance

Isumi Shi currently has 1 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

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Mapped populated places

1

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Chiba counties

36

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Largest city

Ōhara

Population 20,226

Top linked places

Ōhara 20,226

State	Chiba (Japan)
Latitude & Longitude	35.2778,140.3434
Time Zone	Asia/Tokyo
Local time	22:06:25 (19th April 2026)

Geography

Isumi Shi is located at 35°16'40"N 140°20'36"E (35.2777700, 140.3433500).