Singapore Dengue Cluster Checker
Explore active dengue clusters in Singapore with official open data and an interactive map.
Case Severity
Selected Cluster
Select a cluster
Choose a cluster from the list or click a polygon on the map to view more details.
Cluster List
About the Singapore Dengue Cluster Checker
The Singapore Dengue Cluster Checker helps residents, commuters, parents, landlords, and property managers quickly see where active dengue clusters are located across the island. It uses the official dengue cluster GeoJSON dataset published through Singapore's open data platform and plots each active polygon on a Google Map. Instead of browsing a long static list, you can search by road, neighbourhood, or condominium name and immediately see the affected area.
Dengue cluster boundaries are useful because they show where recent cases are concentrated, not just which planning area is affected. A cluster can cover one street, a few adjoining blocks, or a larger estate. By mapping these polygons, the tool makes it easier to understand whether a place you are visiting, managing, or living in falls within or near an active cluster.
This checker is designed for practical day-to-day use in Singapore. If you are planning home visits, viewing a rental unit, managing pest control in a condo, or advising family members who may be more vulnerable to mosquito-borne illness, you can use this page to spot active clusters, review recent case sizes, and check where breeding habitats were reported by the National Environment Agency (NEA).
The dataset is refreshed from the official source and cached on the server for performance, so the page loads quickly while still staying close to the published government update cycle. The map, searchable cluster list, and detail panel all use the same official records to reduce confusion and make the information easier to act on.
How to Use This Tool
- Open the map view: The page loads with Singapore centred on the map. Each shaded polygon represents one active dengue cluster.
- Search for a location: Enter a road name, estate, condo, or neighbourhood in the search box to narrow the list and map to matching clusters.
- Compare case sizes: Use the colour legend to see whether a cluster currently has lower, moderate, or higher reported case counts.
- Click a polygon or list card: Selecting a cluster opens its locality, case count, update timestamp, and reported breeding habitat categories.
- Use the refresh button: Refresh the dataset whenever you want to pull a newer published version from the cached backend endpoint.
- Open the official NEA source: If you need the broader public-health context or official advisories, use the provided source link in the detail panel.
For best results, search using street names such as “Flora Dr”, “Defu”, or “Loyang”, or use estate and condominium names that commonly appear in official locality labels.
Key Terms and Concepts
What is a dengue cluster?
A dengue cluster is an area where multiple dengue cases have been detected close together in space and time. It signals that transmission risk is elevated in that locality and that extra mosquito-control attention may be needed.
What does case count mean?
The case count is the number of dengue cases associated with the published cluster record at the time of the dataset update. It is useful for comparing clusters, but it should not be treated as a prediction of future spread.
Why are polygons more useful than a pin?
A polygon shows the approximate boundary of the cluster, which is often more practical than a single marker. It helps you understand whether your block, condo, or surrounding streets are inside the affected zone.
Breeding habitat categories
The dataset may list breeding habitats found in homes, public places, or construction sites. These categories help users understand where inspections found mosquito breeding risk, but they do not describe every possible source in the area.
Official update timestamp
The timestamp shown for each cluster comes from the official dataset field. It indicates when that cluster record was last updated in the published data, which helps you judge how recent the information is.
Common Use Cases
- Households and residents: Check whether your home, childcare route, or elderly parents' estate is within an active cluster before increasing mosquito prevention measures.
- Property management teams: Review clusters near a condo, landed estate, or mixed-use development so you can step up inspection and cleaning routines.
- Agents and tenants: Use the map during property viewings to understand recent dengue activity around a potential home.
- Parents and caregivers: Check clusters near schools, playgrounds, or relatives' homes when planning visits with young children.
- Operations teams: Use the searchable list to assess whether staff, vendors, or field workers are entering higher-risk localities.
- Community volunteers: Share a simple, visual reference when reminding neighbours to remove stagnant water and check containers.
Examples
Example 1: If you are visiting family in Loyang, type “Loyang” into the search box. The tool narrows the list, highlights the matching polygon, and shows the latest case count so you can decide whether to take extra precautions such as repellent and long sleeves.
Example 2: A condo manager can search for the development or road name, click the polygon, and review whether the official record mentions homes, public places, or construction sites as breeding habitats. That helps guide which inspection teams should be notified first.
Example 3: If you are comparing multiple neighbourhoods before moving house, search each locality one by one and note the active cluster counts and update dates. This gives you a quick snapshot of recently reported dengue activity around each option.
Data Sources
This tool uses the official dengue cluster dataset published through data.gov.sg. The backend first requests the dataset poll-download endpoint and then downloads the latest published GeoJSON file from the returned link.
- Dataset: DengueClustersGEOJSON.geojson
- Publisher: National Environment Agency (NEA) via Singapore Government open data services
- Format: GeoJSON polygons with locality names, case counts, breeding habitat categories, and record update timestamps
The data remains subject to the official publisher's update schedule and public-health definitions. Always refer to NEA for formal advisories and policy guidance.
Important Notes
This tool is informational only: It helps you visualise official cluster data, but it is not a medical diagnosis tool and it does not replace professional public-health advice.
Cluster boundaries can change: Dengue clusters may expand, shrink, appear, or disappear as new information is published. Re-check the tool if you are making time-sensitive decisions.
Case counts are not the whole risk picture: Even if no active cluster is shown near you, mosquito prevention still matters because dengue transmission can occur outside published clusters.
Search results depend on official locality labels: Some records use combined street or development names, so broader keywords may work better than exact building names.
Map display requires Google Maps: If the API key is not configured or the script fails to load, you can still use the searchable list and detailed cluster information on the page.
Frequently Asked Questions
How current is the dengue cluster data on this page?
The page uses the latest published GeoJSON dataset from Singapore's open data platform and caches it briefly for performance. The effective freshness still depends on when the official source publishes an update.
Does a higher case count mean I should avoid the area completely?
Not necessarily. A higher case count means more reported cases are associated with that cluster, but it should be used as a signal for extra precautions rather than as a blanket instruction to avoid the area.
Why does the tool show polygons instead of exact homes?
The official dataset is published as cluster boundaries, not individual household locations. This protects privacy while still showing the locality where dengue activity has been identified.
What if I cannot find my building name in the search box?
Try searching for the road name, estate, or a shorter keyword. Official locality labels often combine several roads or development names into one cluster description.
What do the homes, public places, and construction sites fields mean?
These fields describe the categories of breeding habitats reported in the official record. They help indicate where mosquito breeding sources were found during inspections, if such details were published for that cluster.
Does this tool replace the NEA dengue website?
No. This tool is a visual companion that makes the official data easier to search and map. NEA remains the authoritative source for advisories, prevention guidance, and other public-health updates.
Can I use this tool on mobile?
Yes. The map, stats, and cluster list are responsive, so you can search clusters and review details on a phone or tablet as well as on desktop.
Why is the map unavailable but the list still works?
The map requires a configured Google Maps API key and successful script loading. The backend cluster data can still load independently, so the searchable list remains available even if the map does not.