Texas Map with ZIP Codes

This interactive visualization displays a map of Texas with both county boundaries and ZIP code information.

Features

• Interactive map showing all Texas counties
• ZIP code boundaries overlaid on the map
• Major cities highlighted with labels
• Hover over counties or ZIP codes to see more information
• Upload custom ZIP code data if needed

Usage

1. Open the index.html file in a web browser
2. Hover over counties to see their FIPS codes
3. Hover over ZIP codes to see their code and associated city/region
4. To upload your own ZIP code data, click the button at the bottom and select a GeoJSON or TopoJSON file

Data Sources

• Counties and state boundaries: US Census Bureau (via D3's us-atlas)
• ZIP codes: ArcGIS REST service with Texas ZIP code boundaries
• Custom ZIP code data can be uploaded in GeoJSON or TopoJSON format

Technical Details

This visualization uses:

• D3.js for data visualization and mapping
• TopoJSON for efficient map geometry representation
• File API for custom data uploads
• Mercator projection optimized for Texas

Browser Compatibility

This map works best in modern browsers including:

• Chrome (recommended)
• Firefox
• Edge
• Safari