// CITY_ASSESSMENT
How smart is Yokohama?
Yokohama scores 43.2% against the UN ISO-aligned smart city framework in 2026 — ranked #278 of 388 cities assessed, with every finding traceable to a public source.
Smart score
43.2%
Rank
#278 / 388
Criteria present
31 / 86
Evidence coverage
51.2%
Yokohama's smart city score by area
8 present · 3 partial · 1 absent · 3 not assessed
4 present · 1 partial · 0 absent · 7 not assessed
5 present · 2 partial · 1 absent · 5 not assessed
2 present · 2 partial · 0 absent · 7 not assessed
7 present · 1 partial · 2 absent · 3 not assessed
3 present · 1 partial · 0 absent · 4 not assessed
2 present · 3 partial · 0 absent · 9 not assessed
Where Yokohama is strong
- ▸Culture, Tourism & Recreation
- ▸Urban Data Platform & Digital Twin
- ▸Open Data & Transparency
- ▸Digital Government Services
- ▸Green Space & Biodiversity
Where the gaps are
- ▸Housing & Urban Planning
- ▸Climate Adaptation & Heat
- ▸Connectivity & ICT Infrastructure
- ▸Active & Shared Mobility
- ▸Innovation & Economic Development
Evidence highlights
Open Data & Transparency · Official open data portal
The Yokohama City Open Data Portal (横浜市オープンデータポータル) is an official government-run platform publishing machine-readable datasets.
https://data.city.yokohama.lg.jp/datasetOpen Data & Transparency · Programmatic API access
The Yokohama City Open Data Portal provides programmatic API access, stating that the registry can be accessed using an API Key and referring to API documentation.
https://data.city.yokohama.lg.jp/datasetDigital Government Services · Digital identity / single sign-on
The Yokohama City website provides information about 'My Number Card / Electronic Certificate' (マイナンバーカード・電子証明書), indicating the availability of a digital identity for residents.
https://www.city.yokohama.lg.jp/kurashi/koseki-zei-hoken/todokede/koseki-juminhyo/mynumber/Digital Government Services · Online payments for taxes & fees
The eLTAX Local Tax Portal System (地方税ポータルシステム) is described as an electronic comprehensive window for local taxes, implying that local taxes can be paid online.
https://www.lta.go.jp/About this assessment
Yokohama was assessed against the 86 criteria of the UN ISO-aligned smart city framework on 2026-07-23 by AI agents gathering evidence from official public sources. Each criterion is marked present, partial or absent, and every finding links to where it was found. Scores refresh continuously as cities publish new evidence.