Maryland Voting District Boundaries and Attributes

2025 precinct data collected by the Maryland State Board of Elections, aggregated and standardized by the Maryland Department of Planning in 2026. This dataset provides the official boundaries and identifiers for election precincts across Maryland's counties and Baltimore City. Howard County precincts are from 2022, as no changes were reported.

Use Cases

• Mapping precinct boundaries using the_geom column for spatial visualization.
• Identifying precincts by county using the County Name and County (FIPS code) columns.
• Standardizing precinct identifiers using the Voting District Identifier (VTD) column.
• Tracking data provenance using the Aggregator Source and GIS Source columns.
• Calculating precinct areas and perimeters using Shape.STArea() and Shape.STLength() columns.

Strengths

• Data is sourced from the authoritative Maryland State Board of Elections.
• Includes standardized identifiers (VTD) for cross-county consistency.
• Contains explicit metadata fields (AGG_SRC, GIS_SRC) for provenance tracking.

Limitations

• Row count and dataset size are unknown across all sources.
• License information is not provided.
• Some precinct labels (LABEL field) may be blank or null if identifiers could not be derived.

Provenance

Source

Maryland State Board of Elections (SBOE), aggregated by Maryland Department of Planning (MDP).

Collection Method

Collected from counties, processed to standardize naming conventions.

Time Range

2025 (primary collection), with Howard County data from 2022.

Freshness

Last updated on 2026-05-13 according to Socrata, with source data collected in 2025.

Geography

Maryland, including all counties and Baltimore City.