{ "currentVersion": 10.71, "id": 0, "name": "Archived Census Blocks 2010", "type": "Feature Layer", "description": "Census Blocks are statistical areas bounded on all sides by visible features, such as streets, roads, streams, and railroad tracks, and/or by nonvisible boundaries such as city, town, township, and county limits, and short line-of-sight extensions of streets and roads. Census blocks are relatively small in area; for example, a block in a city bounded by streets. However, census blocks in remote areas are often large and irregular and may even be many square miles in area. A common misunderstanding is that data users think census blocks are used geographically to build all other census geographic areas, rather all other census geographic areas are updated and then used as the primary constraints, along with roads and water features, to delineate the tabulation blocks. As a result, all 2010 Census blocks nest within every other 2010 Census geographic area, so that Census Bureau statistical data can be tabulated at the block level and aggregated up to the appropriate geographic areas. Blocks are the smallest geographic areas for which the Census Bureau publishes data from the decennial census.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102100, "latestWkid": 3857 }, "copyrightText": "MD iMap, MDP, Karen Maisenhalder, karen.maisenhalder@maryland.gov, U.S. Census", "parentLayer": null, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "simple", "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 0, 0, 0, 0 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 92, 230, 255 ], "width": 0.4 } }, "label": "", "description": "" }, "transparency": 0, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": -8848524.8337, "ymin": 4567010.418899998, "xmax": -8354430.1568, "ymax": 4825776.0198, "spatialReference": { "wkid": 102100, "latestWkid": 3857 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "BLK2010", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID_1", "type": "esriFieldTypeOID", "alias": "GIS Object ID", "domain": null }, { "name": "FID_tabblo", "type": "esriFieldTypeDouble", "alias": "FID_tabblo", "domain": null }, { "name": "FID_tl_201", "type": "esriFieldTypeDouble", "alias": "FID_tl_201", "domain": null }, { "name": "ALAND10", "type": "esriFieldTypeDouble", "alias": "Census Land Area (m)", "domain": null }, { "name": "AWATER10", "type": "esriFieldTypeDouble", "alias": "Census Water Area (m)", "domain": null }, { "name": "STATE", "type": "esriFieldTypeString", "alias": "State", "length": 2, "domain": null }, { "name": "CNTY2010", "type": "esriFieldTypeString", "alias": "Full FIPS County Code", "length": 5, "domain": null }, { "name": "CT2010", "type": "esriFieldTypeString", "alias": "Census Tract ID", "length": 11, "domain": null }, { "name": "BG2010", "type": "esriFieldTypeString", "alias": "Block Group ID", "length": 12, "domain": null }, { "name": "BLOCK", "type": "esriFieldTypeString", "alias": "Block ID", "length": 9, "domain": null }, { "name": "BLK2010", "type": "esriFieldTypeString", "alias": "Full Block ID", "length": 15, "domain": null }, { "name": "ACRES", "type": "esriFieldTypeDouble", "alias": "Acres", "domain": null }, { "name": "SQ_MILES", "type": "esriFieldTypeDouble", "alias": "Square Miles", "domain": null }, { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape", "domain": null }, { "name": "Shape.STArea()", "type": "esriFieldTypeDouble", "alias": "Shape.STArea()", "domain": null }, { "name": "Shape.STLength()", "type": "esriFieldTypeDouble", "alias": "Shape.STLength()", "domain": null } ], "geometryField": { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape" }, "indexes": [ { "name": "R265_pk", "fields": "OBJECTID_1", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S206_idx", "fields": "Shape", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "supportsCoordinatesQuantization": true }