DC Geocoding and Address Verification Web Service

A SOAP web service provides geocoding and address verification operations for locations within Washington, D.C. The service, maintained by the District of Columbia government, supports code-based querying interfaces for developers.

Use Cases

• Integrate the geocoding operation into applications to convert Washington, D.C. addresses into geographic coordinates.
• Use the address verification operation to validate and standardize address data for locations in D.C.
• Build location-based services by querying the web service for information about specific D.C. points of interest.

Strengths

• Maintained by the authoritative District of Columbia government organization.
• Offers multiple distinct operations including geocoding and address verification.
• Updated recently, with a last recorded update in March 2026.

Limitations

• The core dataset structure, including row and column counts, is unknown as the resource is a service interface.
• Data access and utility are dependent on understanding and implementing the SOAP web service protocol.
• Geographic coverage is explicitly limited to Washington, D.C., United States.

Provenance

Source

District of Columbia

Collection Method

SOAP web service with code-based querying interfaces.

Time Range

null

Freshness

Last updated 2026-03-25.

Geography

Washington, D.C., United States