---
title: US County Lookup by Coordinates API
slug: coordinate-enrichment
url: https://apyhub.com/dosvak/service/coordinate-enrichment
provider: Dosvak LLC
categories: [Geolocation]
tags: [geolocation, coordinate-lookup, location-enrichment, reverse-geocoding, maps]
auth: api_key
---

# US County Lookup by Coordinates API

Enrich latitude and longitude coordinates with structured location data in JSON. Built for maps, analytics, and apps that need context for a point.

## Endpoints

| Method | URL | Description | Atoms |
| --- | --- | --- | --- |
| GET | `https://api.eu.apyhub.com/dosvak/coordinate-enrichment` | What it does Enriches a pair of geographic coordinates by looking up additional information for the… | 100 |

## Examples

### Coordinate enrichment

#### Quickstart

Look up enrichment data for a latitude/longitude pair using query parameters.

```bash
curl -X GET "https://api.eu.apyhub.com/dosvak/coordinate-enrichment?lat=34.0522&lon=-118.2437" \
  -H "apy-token: $APY_TOKEN"
```

#### What you'll get back

Returns a JSON object containing the input coordinates, county information, demographic statistics, and attribution details.

```json
{
  "input": {
    "lat": 34.0522,
    "lon": -118.2437
  },
  "enrichment": {
    "county_fips": "06037",
    "county_name": "Los Angeles County",
    "state_name": "California",
    "population": 9757179,
    "median_household_income": "80794",
    "poverty_rate": "13.1",
    "unemployment_rate": "5.4"
  },
  "attribution": []
}
```

## About

## What it does
US County Lookup by Coordinates converts latitude and longitude into the corresponding U.S. county and returns county-related information.. Send `lat` and `lon` as query parameters, and it returns a JSON response with enrichment data for that point.

Use Coordinate Enrichment when you already have geographic coordinates and need more context for them in your workflow. It fits mapping products, analytics pipelines, and location-aware features that need to attach additional information to a point without building your own lookup layer.

The service is intentionally simple at the request level: it accepts only `lat` and `lon`, both numeric values within standard coordinate ranges. The response schema is open-ended, so you should treat the returned JSON as structured enrichment data rather than a fixed set of fields.

If your application stores locations as coordinates but needs to display, segment, or route based on richer place context, Coordinate Enrichment gives you a direct lookup step you can plug into that flow.

## Usage

Base URL: `https://api.eu.apyhub.com` (default region — see
`GET https://apyhub.com/api/public/regions` for the rest).

Authenticate with an ApyHub API key in the `apy-token` header.
Full docs and a live playground: https://apyhub.com/dosvak/service/coordinate-enrichment