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Partial researchResearch snapshot 2026-09-13. Evidence gaps remain; see Coverage for requirements.

Office briefing

PORTMORE — Mayor

Tracked current office. Identifiers stay separate from display names.

Jamaica · PORTMORE · municipal · MayorJM-M-PORTMORE

Read the complete original research briefing

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.

1. What office, where, and when is the next election?

Geography
PORTMORE
Next election
2028-02
Linked upcoming event
next-570243fab08d1bb326de8780
Registry qualification
Unknown

2. How certain is that date?

2028-02 is expected (not formally called). Month precision — no calendar day supplied. A date without a formal call is not confirmed.

3. Who won earlier selected elections?

2024-02-26

Ordinary · Legal certification not established · list votes

  • IND0.9%
  • JLP42.0%
  • PNP57.1%
Results for event-e4f0f21ef20657ccbdba31a7
Label / candidateParty codeVotesShareSeatsStatus
INDjamaica/S282ab12c5a/20242320.9%0 (recorded zero)Recorded
JLPjamaica/S282ab12c5a/202410,96642%0 (recorded zero)Recorded
PNPjamaica/S282ab12c5a/202414,89557.1%1Recorded

2016-11-28

Ordinary · Legal certification not established · list votes

  • JLP46.3%
  • PNP53.7%
Results for event-0881b29be9a660231265369f
Label / candidateParty codeVotesShareSeatsStatus
JLPjamaica/S43b2f2ad0f/201611,02846.3%0 (recorded zero)Recorded
PNPjamaica/S43b2f2ad0f/201612,81053.7%1Recorded

2012-03-26

Ordinary · Legal certification not established · list votes

  • IND0.9%
  • JLP35.3%
  • PNP63.8%
Results for event-085833cccbe50c422d07e38a
Label / candidateParty codeVotesShareSeatsStatus
INDjamaica/S4b9da6fe8a/20122030.9%0 (recorded zero)Recorded
JLPjamaica/S4b9da6fe8a/20128,31635.3%0 (recorded zero)Recorded
PNPjamaica/S4b9da6fe8a/201215,04063.8%1Recorded

4. Competition and volatility

competition index

Withheld

Unknown0–100 historical closeness

Actual-event and/or comparability review incomplete

Comparison status: Comparison unavailable · 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.

Method ci.weighted-gap.v1. Inputs: latest_gap=null, oldest_gap=null, previous_gap=null

pedersen volatility

Withheld volatility

Unknownpercentage 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

Comparison status: Latest interval · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["JLP","PNP","Other"], interval=Latest interval, vectors=[null,null,null]

pedersen volatility

Withheld volatility

Unknownpercentage 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

Comparison status: Previous interval · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["JLP","PNP","Other"], interval=Previous interval, vectors=[null,null,null]

pedersen volatility

Withheld volatility

Unknownpercentage 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

Comparison status: Both intervals mean · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["JLP","PNP","Other"], interval=Both intervals mean, vectors=[null,null,null]

Source-reported control: Unverified. Current tenure requires separate dated evidence.

5. Officeholder evidence

Dated roster observations are not automatically current tenure. The source current-office flag means this office is tracked now, not that the last winner still holds it.

No officeholder observation supplied.

6. Polling context

No local poll supplied.

7. Unresolved issues and sources

No open research issues attached to this office.

Sources

Cite this record

Center for Digital Democracy. “PORTMORE — Mayor.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/JM-M-PORTMORE. Sources: jamaica--url-550506a6d194dcf135d5838b, jamaica--url-3115bb0c65c193a26c09eb79, jamaica--url-adbcc2be67a6b743d80e1898, jamaica--S282ab12c5a, jamaica--S43b2f2ad0f, jamaica--S4b9da6fe8a.