District of Columbia Open Data
APIFree API for District of Columbia government public datasets
Overview
The District of Columbia Open Data API provides RESTful access to hundreds of public datasets from D.C. government agencies, including crime statistics, GIS spatial data, financial records, and urban planning info. Endpoints support filtering, sorting, and pagination, with responses available in JSON, CSV, or GeoJSON (for geographic datasets). Use cases include building crime-tracking apps, urban planning tools, financial transparency dashboards, and integrating GIS data into community mapping projects for research or public engagement.
Example Integration (JavaScript)
fetch('http://opendata.dc.gov/pages/using-apis')
.then(res => res.json())
.then(data => console.log(data))
.catch(err => console.error(err)); Key Features
- RESTful API
- Multiple data formats (JSON, CSV, GeoJSON)
- No authentication required
- Filtering & pagination support
Frequently Asked Questions
? Is District of Columbia Open Data free to use?
Yes, all datasets are publicly available for free under open data licenses.
? Does it require an API Key?
No, the API does not require authentication or an API key for access.
? What is the response format?
Responses are available in multiple formats including JSON, CSV, and GeoJSON (for spatial datasets).
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Tool Info
Pros
- ⊕ Free public access
- ⊕ Diverse dataset categories
- ⊕ Regularly updated
- ⊕ Supports spatial data analysis
Cons
- ⊖ Variable update frequencies across datasets
- ⊖ Some datasets lack detailed docs
- ⊖ Potential rate limits for high volume