About Us
Postal.do started from a simple frustration: finding your sector’s zip code in the Dominican Republic was surprisingly hard — especially on a phone, while filling Amazon, Shein or bank forms.
Our mission
Help anyone — in the DR or the diaspora — find their zip code in seconds: free, no sign-up, no intrusive ads. And trust the data enough to copy it without hesitation.
Data methodology
We don’t invent codes. We compile and cross-reference public official sources:
- INPOSDOM — the Dominican postal operator, the authority on codes.
- National Statistics Office (ONE) — official territorial division (provinces and municipalities).
- GeoNames — codes and geographic coordinates.
When sources conflict, we prioritize INPOSDOM and log the discrepancy for review. Sectors without a verifiable own code inherit their municipality’s code and are marked as such on the page.
How we make money
We show advertising (Google AdSense) clearly separated from content. That keeps the site free. We never blend ads with data to confuse you.
Important notice
Postal.do is an independent reference site. We are not affiliated with INPOSDOM or any government entity of the Dominican Republic. Data compiled from public official sources. For official postal services, contact INPOSDOM directly.
Found an error? Email hola@postal.do.