Postal code

Sri Lanka postal codes

Q: What is the postal code format in Sri Lanka?

Sri Lanka postal codes follow the pattern ##### (# = digit, @ = letter), i.e. 5 digits. Examples: 20000, 00100.

Q: What regex validates Sri Lanka postal codes?

^(?:\d{5})$ matches the official format (from Google's address metadata). It checks the shape only; whether a code exists needs a lookup in a postal code database such as the zipcodestack API.

Sri Lanka postal codes have the format ##### (5 digits), for example 20000. zipcodestack has 1,841 postal codes for Sri Lanka in 9 regions.

Format: #####
Example: 20000
Codes in our database: 1,841
Local name: postal code

Sri Lanka postal code format

Pattern	##### (# digit, @ letter)
Examples	20000, 00100
Regex	`^(?:\d{5})$`
Official lookup	www.slpost.gov.lk

Format and regex from Google's address metadata (libaddressinput). The regex checks the shape of a code, not whether it exists.

Postal Codes by region

Region	Range	Codes
Central Province	20000 – 22287	305
Eastern Province	30000 – 32514	146
North Central Province	50000 – 51518	189
Northern Province	40000 – 43000	4
North Western Province	60000 – 61534	282
Province of Uva	70250 – 96167	190
Sabaragamuwa Province	70000 – 71724	219
Southern Province	80000 – 82638	235
Western Province	00100 – 12580	263

Postal Codes of the largest cities

Colombo 00100 + 11 more Dehiwala-Mount Lavinia 00300 + 8 more Maharagama 10100 + 10 more Jaffna 40000 Moratuwa 10300 + 4 more Negombo 11500 + 1 more Pita Kotte 00400 + 9 more Sri Jayewardenepura Kotte 00500 + 9 more Kandy 20000 + 14 more Trincomalee 31000 Kalmunai 32200 + 5 more

Sri Lanka postal codes: FAQ

What is the postal code format in Sri Lanka?

Sri Lanka postal codes follow the pattern ##### (# = digit, @ = letter), i.e. 5 digits. Examples: 20000, 00100.

What regex validates Sri Lanka postal codes?

^(?:\d{5})$ matches the official format (from Google's address metadata). It checks the shape only; whether a code exists needs a lookup in a postal code database such as the zipcodestack API.

What is the postal code of Colombo?

Colombo has 12 postal codes, starting with 00100. The right one depends on the street; see the full list for Colombo.

How many postal codes are there in Sri Lanka?

The zipcodestack database contains 1,841 postal codes for Sri Lanka, each with place name, region and coordinates.

Postal code API

Look up Sri Lanka postal codes by API

zipcodestack looks up, validates and searches postal codes in 149 countries: city, state, coordinates, distances and radius search, as JSON.

/v1/search documentation International postal code API All documentation

300 free requests every month. No credit card required.

GET https://api.zipcodestack.com/v1/search?codes=20000&country=lk

{
  "results": {
    "20000": [{
      "postal_code": "20000",
      "country_code": "LK",
      "city": "…",
      "state": "…",
      "latitude": …,
      "longitude": …
    }]
  }
}

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