Postal Code Finder
Registry / Singapore / Postal code prefixes / 21 / 218221 /

Postal code 218221 in Serangoon Road, Singapore

Postal code 218221 is mapped to 1 locality record in Singapore with administrative hierarchy and coordinates.

Verified data profile for Postal code 218221

Based on 1 records, 1 postal code values and 1 mapped localities. Coordinate coverage is 100.0%.

1
Records
1
Postal identifiers
100.0%
Geocoded
218221
Example code
Postal code Locality Administrative path Coordinates
218221 Serangoon Road 1.3156, 103.8587

Related postal lookups

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country
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code_index
Prefix 21
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nearby_postal_code · 1 records
218218
nearby_postal_code · 1 records
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218222
nearby_postal_code · 1 records
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Postal code validation data

Use this page to validate one postal code or locality against real parent areas, nearby records and downloadable source rows. The canonical route for this record set is /postal-codes/singapore/code/218221.

Records
1
Database rows represented by this canonical route.
Postal identifiers
1
Distinct postal code values available for this page.
Localities
1
Mapped place names or administrative entries.
Coordinate coverage
100.0%
Rows with latitude and longitude available.
Example
218221
Sample code from Serangoon Road.
Code Place Hierarchy
218221 Serangoon Road
Download postal data
CSV, JSON and XLSX exports for research, validation and data products.
Use the API
Query postal codes by country, place name, region or code prefix.
Implementation notes
Field definitions, canonical paths and practical lookup guidance.

Useful related pages

Singapore
country
Postal code prefixes
code_index
Prefix 21
code_prefix · 1,177 records
218217
nearby_postal_code · 1 records
218218
nearby_postal_code · 1 records
218219
nearby_postal_code · 1 records
218220
nearby_postal_code · 1 records
218222
nearby_postal_code · 1 records
218223
nearby_postal_code · 1 records

Data questions

How should I validate 218221?

Validate the postal identifier together with country, locality and administrative hierarchy fields, not as a standalone global pattern.

What context is available for this record?

The page includes the parent country, related prefix or nearby codes, coordinates when available and source rows for download/API workflows.

Postal code range

This code belongs to the 21 prefix range for Singapore.

View all 21 postal codes

How to validate postal code 218221

Treat 218221 as a text value, not a number. Postal identifiers can contain leading zeroes, spaces or letters in other countries, so applications should validate the country and original string together. For this page, the code is valid when it appears with one of the mapped localities below and the administrative path belongs to Singapore.

Singapore lookup
Open the country-level hierarchy and dataset exports.
Browse all prefixes
Compare this code with neighboring country ranges.
Prefix 21
View related codes in the same prefix range.

Mapped localities

Serangoon Road
1.3156, 103.8587

Common lookup mistakes

A postal code can map to more than one locality record, and the same locality name can appear in different administrative areas. Always compare the country, postal code, place name and region together before treating a match as final.

Coordinates on this page are useful for map previews and approximate area checks. They should be read as locality or postal-area centroids, not as exact delivery addresses. For bulk validation, download the country dataset and keep this canonical URL as the human-readable reference for the code.

Nearby postal code lookups

These neighboring identifiers help compare adjacent code ranges inside Singapore. Each link opens a canonical postal-code page with its mapped places and administrative context.

218217
Serangoon Road
218218
Serangoon Road
218219
Serangoon Road
218220
Serangoon Road
218222
Serangoon Road
218223
Serangoon Road
218224
Serangoon Road
218225
Serangoon Road