Maryland Election Boundaries - Precincts 2026

Precinct (voting district) data were collected by the State Board of Elections (SBOE) in 2026 and aggregated by the Maryland Department of Planning (MDP). MDP processed the data to standardize the naming convention of the voting district (VTD) number. 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: 7/13/2026 This is a MD iMAP hosted service. Find more information at https://imap.maryland.gov. Service Link: https://mdgeodata.md.gov/imap/rest/services/Boundaries/MD_ElectionBoundaries/FeatureServer/2本数据集的选举分区（Precinct, voting district）数据由美国州选举委员会（State Board of Elections, SBOE）于2026年采集，并由马里兰州规划局（Maryland Department of Planning, MDP）完成聚合处理。马里兰州规划局对数据进行标准化处理，统一了投票分区标识符（Voting District Identifier, VTD）编号的命名规范。 后续当马里兰州规划局收到并处理新增或修订后的选举分区数据集时，本要素类（feature class）将同步更新。 字段包含如下内容： 1. JURSCODE（管辖代码，Jurisdiction Code）：对应MdProperty View中的管辖代码，即代表郡县或巴尔的摩市的四位字母编码； 2. COUNTY（县标识）：美国人口普查局为马里兰州各郡县（含巴尔的摩市）分配的五位地理标识符，由马里兰州州代码24与三位郡县代码拼接而成； 3. COUNTYNAME（县名称）：文本格式的县名； 4. VTD（投票分区标识符，Voting District Identifier, VTD）：由五位郡县代码（详见COUNTY字段）与六位选举分区编号拼接而成的投票分区标识符。其中六位选举分区编号由两位选举区代码、连字符及三位分区编号组成。若无法按照上述规范格式化选举分区名称，则该字段值为空值（NULL）； 5. LABEL（分区标签，Precinct Label）：若可从源数据中提取六位分区标识符，则取值为VTD字段的后六位（即分区标识符）；若无法提取，则采用郡县提供的分区名称。该字段可为空字符串或空值（NULL），且跨郡县的分区标签不具有唯一性； 6. NAME（完整分区名称，Full Precinct Name）：完整的选举分区名称，包含县名与分区标签； 7. AGG_SRC（聚合来源，Aggregator Source）：包含负责数据聚合的机构、要素类名称与数据版本年份； 8. DATE_AGGREGATED（聚合日期，Date Aggregated）：数据完成聚合的日期，格式为YYMMDD； 9. GIS_SRC（GIS来源，GIS Source）：数据聚合方获取的GIS空间与属性信息的原始来源，通常为shapefile或要素类名称； 10. SRC_DATE（GIS源日期，GIS Source Date）：数据聚合方获取GIS数据的日期，格式为YYYYMMDD；若月份或日期未知，则以YYYY0000格式填充。 所有数据均采用统一坐标系进行投影，但选举分区的边界仍按照郡县提供的原始格式进行绘制。后续马里兰州规划局可能会进行小幅调整，以确保分区边界与人口普查街区边界无缝衔接。 最后更新时间：2026年7月13日 本数据集为马里兰州iMAP托管服务（MD iMAP hosted service），更多信息可访问https://imap.maryland.gov。服务链接：https://mdgeodata.md.gov/imap/rest/services/Boundaries/MD_ElectionBoundaries/FeatureServer/2