CDXStreamer Technologies

ZIP / Postal Lookup

What You Get Back

City and state / province
County (US) where available
Latitude & longitude
Population (US ZIPs)

Instant Local Lookup

Every ZIP / postal code is resolved from our own database — no third-party geocoding, so it's fast and the per-row price stays low and flat.

US + Canada

Look up US ZIP codes and Canadian postal codes in the same file. US results include county and population; Canadian results include city and province.

AI Column Detection

Upload any format — our AI finds the ZIP / postal column even in messy files, and zero-pads Excel-truncated ZIPs (e.g. 606 → 00606).

Charts + Reports

One row per input code with city, county, coordinates and population, plus a map of every located code. Download as CSV, Excel, or a branded PDF.

Frequently Asked Questions

What do I upload?

A file with one column of US ZIP codes or Canadian postal codes. The AI column detector finds it automatically — no special formatting required.

Why is this cheaper than Geocoding?

ZIP / Postal Lookup answers entirely from our local database — there's no paid third-party geocoding call per row, so we pass the savings on. If you need rooftop-level coordinates for full street addresses, use the Geocoding tool instead.

Does it support Canadian postal codes?

Yes. US ZIPs return city, state, county, coordinates, and population; Canadian postal codes return city, province, and coordinates (county and population are US-only).

What does the output look like?

One row per input code: the normalized ZIP / postal code, country, city, state/province, county, latitude, longitude, and population, plus a status column. Download as CSV, Excel, or PDF.

What file formats work?

CSV, TSV, Excel (.xlsx/.xls), and OpenDocument (.ods), up to 20,000 codes per file.