New York City State Assembly District Boundaries

New York City State Assembly District boundaries clipped to the shoreline. The dataset includes geometry and area attributes for each district and is maintained by the New York City Department of City Planning. The current version is 26a, last updated in March 2026.

Use Cases

• Analyze district Shape_Area to compare the geographic size of different Assembly Districts.
• Map the_geom geometries to visualize district boundaries and their relationship to the NYC shoreline.
• Calculate Shape_Length to assess the perimeter of each Assembly District for cartographic or analytical purposes.
• Join district data with other datasets using the Assembly District identifier for demographic or election analysis.

Strengths

• Includes four specific columns for geometric and administrative attributes.
• Boundaries are clipped to the NYC shoreline, providing a precise coastal fit.
• Multiple historical versions are available for longitudinal comparison.

Limitations

• Row count and total dataset size are unknown.
• Sample data is unavailable for previewing record content.
• License terms are unspecified, which may restrict usage.

Provenance

Source

New York City Department of City Planning via data.cityofnewyork.us.

Collection Method

Administrative boundary definition, likely from official city planning sources.

Freshness

Last updated March 2026.

Geography

New York City, New York State.