Compiled by the ENCLAI research team following a documented methodology · Editorial oversight: Dr Natalya Mathur, Founder · Data last updated: (UTC)

Mumps in New Zealand: 2026 cases and outbreak reports

Reported mumps surveillance for New Zealand (NZL) — ≈ Stable · 2025 — latest record 2026-10-13

What the 2026 data shows

As of 30 June 2026, New Zealand has reported 5 mumps cases in 2026, as published by PHF Science / ESR. The full year 2025 closed at 19 cases. 2025 closed 9% above the 2023–2024 average, which is why the trend reads “≈ Stable”.

Of the 20 countries reporting mumps to ENCLAI in 2026, New Zealand accounts for 0.0% of reported cases and ranks 17 by case count.

ENCLAI has logged 75 surveillance records for mumps in New Zealand in 2026, with the most detailed reporting in May 2026 (63 records). 7 of those arrived in the last 30 days; the case counts run to 2026-06-30. 2 distinct surveillance sources reported this pair in 2026.

Reporting authorities for these counts: PHF Science / ESR — NZ Monthly Notifiable Disease Surveillance (by district)

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Surveillance summary

2026 cases (YTD)
5
2025 cases (full year)
19
Baseline avg (3yr)
N/A
Trend (2025)
≈ Stable · 2025
+9% vs 2023–2024 average

Reported cases by year, New Zealand

YearReported casesShare of worldwide reports
2023 16 0.1%
2024 19 0.1%
2025 19 0.0%
2026 (year to date) 5 0.0%

Reporting bounds and case definitions vary; historical baselines are a separate comparison measure. Worldwide share compares this country's reported figure with the sum of all countries reporting mumps to ENCLAI for that year. "Incomplete year" means our sources cover less than ten months of that year, so no full-year figure is shown; "outbreak total to date" is a running total since an outbreak began, not a count for one year.

Surveillance records logged in 2026

MonthRecordsReporting sources
May 2026631
Jun 202621
Jul 202611
Aug 202621
Oct 202671

A record is one dated surveillance publication or one row of an official table; a month with many records is a month with detailed reporting, not necessarily more cases. 7 records were logged in the last 30 days.

Sub-national reporting, 2026

Areas within New Zealand with the most mumps records this year:

AreaRecords
Auckland10
Wellington Region8
Bay of Plenty7
Canterbury7
Southland7

Mumps in other countries, 2026

Country2026 casesTrend
China 14,109
South Korea 5,424 ≈ Stable · 2025
Colombia 4,054 ▼ Declining · 2025
Spain 1,213 ≈ Stable · 2025
Poland 517 ▼ Declining · 2025

Other diseases reported in New Zealand, 2026

Disease2026 casesTrend
COVID-19 6,909 ▼ Declining · 2025
Campylobacteriosis 2,271 ≈ Stable · 2025
Whooping cough (pertussis) 909 ▲ Rising · 2025
Non-typhoidal salmonellosis 493 ▲ Rising · 2025
Enterohaemorrhagic E. coli (EHEC) infection 469 ≈ Stable · 2025

Questions about this page

How many mumps cases has New Zealand reported in 2026?
As of 30 June 2026, New Zealand has reported 5 mumps cases in 2026, as published by PHF Science / ESR. The full year 2025 closed at 19 cases. 2025 closed 9% above the 2023–2024 average, which is why the trend reads “≈ Stable”.
Is mumps rising or falling in New Zealand?
ENCLAI's trend reading for mumps in New Zealand is “≈ Stable · 2025”: the latest complete year is compared with the earlier baseline from the reported counts; the current year is not judged until it closes.
Where does New Zealand publish mumps surveillance data?
The counts on this page were published by PHF Science / ESR — NZ Monthly Notifiable Disease Surveillance (by district). ENCLAI compiles and normalises them and is not affiliated with these authorities.

About this data

Figures are reported case counts as published by the originating health authorities, compiled by ENCLAI from 444 verified surveillance sources. New Zealand figures reflect the reporting available to ENCLAI; reporting periods and case definitions differ between sources, and a missing report does not establish zero cases. ENCLAI holds mumps records for New Zealand dated from 2016. How we verify and update data: methodology & Trust Center · understanding case counts.

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The daily disease brief

One email a day: what changed in official disease reporting worldwide, with the source named for every number. Reported facts only — no forecasts and no interpretation.

Double opt-in — we send a confirmation link and nothing else until you click it. One-click unsubscribe on every email. See our privacy notice.