Lakes in Niigata, Japan
Find lakes in Niigata: county page for 2 named lakes in Japan. Official surface phosphorus, chlorophyll-a, and Secchi, shown as the authority reports them; none is a swim-safety class.
Lake map
Map shows 2 lakes with coordinates
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Named lakes
Frequently asked questions
- How many named lakes are in Niigata?
- 2 named lakes in Niigata, Japan, have official phosphorus and Secchi, 2024–2025. Values are the authority's measurements, shown as reported.
- Where do the Niigata readings come from?
- Niigata pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority, with the year each was taken.