Service Description: Precinct (voting district) polygon boundaries for 2025
Service ItemId: 4c5f85de5d2243ca958c2d6e438e8a97
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
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Description: Precinct (voting district) polygon boundaries for 2025 collected by the Maryland Department of Planning (Planning) from counties (including Baltimore City) or digitized by Planning in coordination with counties, with precinct numbers reformatted as necessary for statewide consistency (see VTD field specifications below).
Historical precinct datasets are included for counties that have not yet submitted countywide 2025 precinct data. This feature class will be updated as additional or revised precinct datasets are received and processed by MDP.
Fields include:
JURSCODE (Jurisdiction Code) – MdProperty View jurisdiction code (four-letter county or Baltimore City code)
COUNTY (County) – The US Census Bureau’s five-digit geographic identifier for each county in Maryland (including Baltimore City), which is includes the Maryland state code (24) followed by a three-digit county code.
COUNTYNAME (County Name) – County name in text format
VTD (Voting District Identifier) – Voting district identifier comprised of a five-digit county code (see “COUNTY” field) followed by a six-digit precinct identifier. The six-digit precinct identifier contains a two-digit election district number followed by a dash followed by a three-digit precinct number. This field is NULL for precinct names that could not be formatted according to these specifications.
LABEL (Precinct Label) – Includes either the final six digits of the VTD field (precinct identifier) or the precinct name as provided by the county if a six-digit precinct identifier could not be derived from the source data. May be blank or NULL. Precinct labels are not unique across counties.
NAME (Full Precinct Name) - Full precinct name, including the County Name and Precinct Label
AGG_SRC (Aggregator Source) - Includes the aggregator organization credited with data aggregation, feature class name, and vintage date
DATE_AGGREGATED (Date Aggregated) – Date the data were aggregated (YYMMDD)
GIS_SRC (GIS Source) – The original source of the GIS spatial and attribute information the aggregator obtained, typically formatted as a shapefile or feature class name
SRC_DATE (GIS Source Date) - The date (YYYYMMDD) the GIS data were obtained by the data aggregator. If the month or day is unknown, the date is YYYY0000
All data are projected to a uniform coordinate system, but precincts are otherwise delineated as received from counties. MDP may complete minor future adjustments to ensure precincts are edge matched with Census block boundaries.
Last Updated: 11/10/2025
Copyright Text: MDiMap, MDP, Alfred Sundara, alfred.sundara@maryland.gov, MD Counties, Maryland Counties, Counties
Spatial Reference: 26985 (26985)
Initial Extent:
XMin: 165685.70137
YMin: -4190.03220740805
XMax: 595289.476630003
YMax: 260029.46760741
Spatial Reference: 26985 (26985)
Full Extent:
XMin: 185213.1457
YMin: 24902.6411000006
XMax: 575762.032300003
YMax: 230936.794300001
Spatial Reference: 26985 (26985)
Units: esriMeters
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