ZIP Code Lookup

Turn any list of ZIP codes into rich location data in seconds — completely free.

ZIP Code Lookup instantly enriches your spreadsheet ZIP codes with city, state, county, timezone, area codes,

latitude/longitude, ZIP type, and population. With 43,000+ US ZIP codes built in, everything runs locally on your

machine. No internet connection needed, no API keys, no usage limits.

How it works:

1. Select your ZIP code column

2. Choose which data fields you want (city, state, county, timezone, and more)

3. Click "Look Up" — results appear instantly

4. Write results next to your data or to a new worksheet

Features:

- 43,000+ US ZIP codes including all 50 states, DC, Puerto Rico, Virgin Islands, Guam, and military APO/FPO

- 10 output fields: City, State, State (Full), County, Latitude, Longitude, Timezone, Area Code(s), ZIP Type,

Population

- Auto-detects your ZIP code column — works even if you select extra columns

- Handles numeric ZIPs with missing leading zeros (e.g. 7110 → 07110)

- Supports ZIP+4 format (e.g. 10001-1234)

- Color-coded results: green for found, yellow for not found, red for invalid

- Write to adjacent cells or generate a new results worksheet

- 100% offline — your data never leaves your computer

- Zero configuration, zero cost, zero limits

Built by Exis LLC, makers of ExisEcho (fuzzy matching) for Excel.