OddMap’s Political Map of Japan’s Municipalities

Field notes

OddMap calculates municipality scores from proportional-representation vote shares and party positions coded on a -3 to +3 scale across multiple policy dimensions. Its time weighting gives the 2026 election half of the composite, followed by 30% for 2025 and 20% for 2024. The interface supports direct browsing of 20 designated cities and 171 wards, while separate raw and standardized views distinguish a model’s policy origin from a municipality’s position relative to the national distribution.