Block Centroids: Washington DC Street Segment Midpoints from the Master Address Repository

A geospatial dataset of block centroids for Washington DC, created as part of the Master Address Repository (MAR). The dataset contains locations and attributes of blocks, which represent street segments and include named alleys, with coordinates at the segment midpoint. It is maintained by the District of Columbia's Office of the Chief Technology Officer (OCTO) and was last updated on 2026-03-25.

Use Cases

• Geocoding and address validation based on block-level street segment data.
• Spatial analysis of urban infrastructure based on street centerline-derived block locations.
• Data integration for civic applications using the Master Address Repository (MAR) framework.

Strengths

• Data is part of the official Master Address Repository (MAR) for Washington DC.
• Includes named alleys, which may provide more granular location data than standard street maps.
• Available in multiple geospatial formats including CSV, GEOJSON, and KML.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Freshness should be verified as the last update date is in the future (2026-03-25).

Provenance

Source

District of Columbia, Office of the Chief Technology Officer (OCTO)

Collection Method

Created from street centerlines information provided by the DC Department of Transportation (DDOT).

Freshness

Last updated 2026-03-25 08:15:04.539974

Geography

Washington DC, USA