Reverse Geocoding

Reverse geocoding converts geographic coordinates (latitude/longitude) into human-readable addresses.

When to Use

Use reverse geocoding when you have:

• GPS coordinates from mobile devices
• Location data from IoT sensors
• Coordinates from mapping applications
• Lat/long values that need address labels

How to Use

Step 1: Prepare Your File

Your file should have columns for latitude and longitude:

id,latitude,longitude
1,40.7128,-74.0060
2,34.0522,-118.2437
3,41.8781,-87.6298

Step 2: Select Reverse Geocoding Mode

After uploading, toggle the geocoding mode to Reverse Geocoding.

Step 3: Map Coordinate Columns

Select which columns contain:

• Latitude - Values typically between -90 and 90
• Longitude - Values typically between -180 and 180

Step 4: Process

Click Process and wait for results.

Results

Your output will include:

Field	Description
Street Number	Building number
Street	Street name
City	City name
State	State/province
Zip	Postal code
Country	Country name
Formatted Address	Complete formatted address
Relevance	Accuracy score (0–1) — see Accuracy & Scoring for the distance bands (rooftop ≤30m, building ≤200m, street ≤500m, postcode ≤1500m, city beyond)

Coordinate Formats

CSV2GEO accepts coordinates in decimal degrees format:

Valid Formats

• 40.7128 (decimal degrees) ✓
• -74.0060 (negative for West/South) ✓

Not Supported

• 40° 42' 46" (degrees/minutes/seconds) ✗
• N 40.7128, W 74.0060 (cardinal directions) ✗

Convert DMS to decimal degrees before uploading.

API: widening the search radius

By default, reverse geocoding only returns results within 100 m of your pin. Rural coordinates (farmland, parks, remote roads) often fail because the nearest indexed address is further away.

If you're calling the API directly, pass ?radius= (in metres, max 1500) to widen the search:

GET /v1/reverse?lat=46.49125&lng=-120.395&radius=1000&api_key=geo_live_...

The accuracy_score automatically decays with distance — a 577 m hit returns as accuracy: postcode, accuracy_score: 0.5 so you can filter or label client-side. Full bands documented at Accuracy & Scoring.

Next Steps

• Accuracy & Scoring - How relevance is computed
• Interactive Maps - Visualize your data
• Download Results - Export options