Washington State Electric Vehicle Registrations
Every battery-electric and plug-in hybrid car registered in Washington State, with make, model, range and location.
A vehicle-level register of all battery electric and plug-in hybrid vehicles currently registered with the Washington State Department of Licensing, including make, model, model year, electric range, county, city and electric utility. EV makers, charging network planners, utilities and market analysts use it to track adoption and plan infrastructure.
Source: Electric Vehicle Population Data — Washington State Department of Licensing · Washington State open data (data.wa.gov terms of use) · Washington State Department of Licensing, Electric Vehicle Population Data, via data.wa.gov
Endpoints
Every request is authenticated with your X-API-Key and counted against your plan.
- GET /v1/data/washington-state-electric-vehicle-registrations
- GET /v1/data/washington-state-electric-vehicle-registrations/search?q=...
- GET /v1/data/washington-state-electric-vehicle-registrations/{key}
Base path /v1/data/washington-state-electric-vehicle-registrations · full reference in the interactive docs. Also exposed as an MCP tool for AI agents.
Fields
| Field | Type | Description |
|---|---|---|
| vin_prefix | str | First 10 characters of the vehicle identification number (not a full VIN) |
| county | str | County where the vehicle is registered |
| city | str | City where the vehicle is registered |
| state | str | State of registration |
| postal_code | str | Postal code of registration area |
| model_year | int | Vehicle model year |
| make | str | Vehicle manufacturer |
| model | str | Vehicle model |
| electric_vehicle_type | str | Battery Electric Vehicle (BEV) or Plug-in Hybrid Electric Vehicle (PHEV) |
| clean_fuel_eligibility | str | Clean Alternative Fuel Vehicle eligibility status |
| electric_range | int | Rated all-electric range in miles (0 where not yet researched) |
| base_msrp | float | Lowest manufacturer suggested retail price for the model (0 where unknown) |
| legislative_district | int | Washington State legislative district |
| dol_vehicle_id | str | Unique Department of Licensing vehicle record identifier |
| vehicle_location | str | Approximate centre point of the postal code as a WKT POINT |
| electric_utility | str | Electric utility serving the registration area |
| census_tract | str | 2020 census tract identifier |
What you get
FAQ
- Does it contain personal information?
- No. It contains only vehicle attributes and area-level location; VINs are truncated to the first 10 characters.
- Why is electric range sometimes 0?
- The source records 0 where the model's range has not yet been researched.
- Is this only Washington State?
- It covers vehicles registered with Washington's Department of Licensing; a small number list an out-of-state address.
Pricing
Simple, transparent pricing
Start free, upgrade when you need more. All plans include full API access.
Free
Get started and explore the API
- 100 API requests per day
- All endpoints included
- Community support
Pro
For production apps and AI agents
- 10,000 API requests per day
- All endpoints included
- Priority support
- Usage dashboard
Enterprise
Unlimited access for high-volume use
- Unlimited API requests
- All endpoints included
- Priority support
- Usage dashboard
- Dedicated support channel
Getting Started
Start building in minutes
Register for a free API key, make your first request, and upgrade when you're ready.
Register
Create an account to get your API key. It's free — no credit card required.
curl -X POST https://api.aristocles.com.au/v1/auth/register \
-H "Content-Type: application/json" \
-d '{"email": "you@example.com", "name": "Your Name"}'Make a request
Use your API key in the X-API-Key header to authenticate requests.
curl https://api.aristocles.com.au/v1/data/asx \
-H "X-API-Key: your_api_key_here"Upgrade
Need more requests? Upgrade to Pro or Enterprise — you'll be redirected to Stripe Checkout.
curl -X POST "https://api.aristocles.com.au/v1/billing/checkout?tier=pro" \
-H "X-API-Key: your_api_key_here"Check usage
Monitor your daily request count and remaining quota at any time.
curl https://api.aristocles.com.au/v1/usage \
-H "X-API-Key: your_api_key_here"