Jamaica

PORTLAND — Municipal council

All 228 electoral divisions now have individual ward records alongside the 15 council/mayor records, with three ordinary cycles and eight identified by-elections. Greater Portmore North 2017 has a certified final return; seven other by-elections retain preliminary or incomplete evidence and are unscored. Ward and whole-council totals overlap. The Portmore boundary bridge, full intervening-event audit and current control remain unresolved.

Historical competition

Competitiveness index for a verified actual-event sequence withheld. Actual-event and/or comparability review incomplete.

Provisional imported-series CI: 45.7/100. This uses the three displayed comparison cycles and retains the open event/boundary audit. It does not confirm the latest three actual completed elections.

Grouped party-share volatility: latest interval 4.8 points; earlier interval 13.3 points; two-interval mean 9.1 points.

Grouped Pedersen lower bound (percentage points). JLP, PNP and Other (minor parties and independents). An interval is withheld if either election has no list mapped to an explicit named group. This is aggregate share change, not individual voter switching. Event review: Actual-event and/or comparability review incomplete

Current government and control: Unverified. Local government-risk forecast: unassessed.

Polling: no vetted current evidence included for this office.

Ordinary council cycles; individual ward boundary and by-election audit remains Full-council ordinary returns aggregate the underlying ward ballots. Known ward by-elections are reported separately and do not become artificial whole-council vote events.

Registry and evidence links: Source 1, Source 2, Source 3

Electoral event evidence

Separate source records can belong to the same election cycle. Recounts, runoffs and void returns do not create additional cycles.

Snapshot 13 September 2026. Fixed election window 8 September 2026 to 8 March 2028. Record JM-C-PORTLAND.