Bulk ZIP Code Lookup Tool

Look up U.S. ZIP code data from a list of ZIP codes or latitude and longitude coordinates. Upload an XLSX, XLS, CSV, or TXT file or paste rows directly, map the input columns, and download the results as CSV. Process up to 2,500 rows for free, or submit the complete dataset as a paid background job.

Choose input type
Upload a fileSelect an Excel, CSV, or text file containing ZIP codes
Copy & PasteCopy and paste ZIP codes from a list or table

Choose one input mode for each run. ZIP code mode searches a postcode column or one code per line. Coordinate mode accepts separate latitude and longitude columns or pasted latitude, longitude pairs. Both modes preserve your source columns in the downloaded CSV.

How Bulk ZIP Code Lookup Works

The tool searches each row at postcode level within the United States. Use free browser processing for up to 2,500 rows, or use paid background processing when you want to submit the full file without browser pauses.

Free Bulk ZIP Lookup

Up to 2,500 rows

Best for smaller lists and quick lookup jobs

  1. 1

    Upload or paste

    Add a spreadsheet, CSV, text file, or pasted list.

  2. 2

    Map input columns

    Choose the ZIP code column or map latitude and longitude.

  3. 3

    Run free batches

    Process up to 2,500 rows in 500-row browser batches.

  4. 4

    Download results

    Save the matched ZIP code and location fields as CSV.

Paid Bulk ZIP Lookup

Full-file processing

Submit a larger list as a background job

  1. 1

    Add the full dataset

    Upload or paste every ZIP code or coordinate row you need to search.

  2. 2

    Map input columns

    Confirm the ZIP code or coordinate fields and keep reference columns.

  3. 3

    Review and pay

    Review the row-based price and submit the complete file.

  4. 4

    Background processing

    The complete lookup runs without browser batch pauses.

  5. 5

    Receive the CSV

    Use the task link or email notification to download the results.

You may also need

Use a single-record tool when you want an interactive map and detailed inspection, or use the address converter when your source contains full street addresses instead of ZIP codes.

ZIP Code LookupInspect one U.S. ZIP code, address, city, or coordinate pair on a map.Try nowPostal Code LookupLook up one postal code or coordinate pair outside the United States.Try nowAddress to Lat/LonBulkConvert full address lists into latitude and longitude coordinates.Try nowLat/Lon to AddressBulkConvert coordinate lists into formatted address data.Try now

Frequently Asked Questions

Is the Bulk ZIP Code Lookup Tool free?
Yes. You can look up up to 2,500 rows for free in 500-row browser batches. For a larger or uninterrupted run, submit the complete file as a paid background job.
Can I find ZIP codes from coordinates in bulk?
Yes. Choose Coordinate list, upload or paste latitude and longitude pairs, map the coordinate columns, and run the lookup.
What file types can I upload?
Upload XLSX, XLS, CSV, or TXT files. You can also paste ZIP codes or latitude/longitude pairs directly.
What does the result CSV contain?
The download preserves your original columns and adds the best available ZIP code match, coordinates, city, state, country, and formatted location fields.
Does the tool support ZIP+4 codes?
You can submit ZIP+4 values. The lookup returns the best available postcode-level location data, which may resolve to the five-digit ZIP area when more detailed open data is unavailable.
Can this tool search postal codes outside the United States?
No. This page is restricted to U.S. ZIP codes. For one international lookup, use the Postal Code Lookup tool.