Minor Civil Divisions-Census County Divisions

Identification Information:

Citation:

Citation Information:

Publication Date: 20021101

Title: Minor Civil Divisions-Census County Divisions

Geospatial Data Presentation Form: vector digital data

Description:

Abstract: MCDCCD00 contains Census 2000 Minor Civil Division(MCD)/Census County Division (CCD) boundaries for Maine at 1:100,000 scale. Census county divisions, census subareas, minor civil divisions, and unorganized territories are primary subdivisions of counties for the reporting of decennial census data. These county divisions are of two functional types: legal and statistical. The Census 2000 TIGER/Line Files are the primary data source for MCDCCD00. The item COUSUB00 contains the Federal Information Processing Standard (FIPS) code a single 5 character code field used by the Bureau of the Census to identify CCDs. The item can be used to relate other Census data files to MCDCCD00 polygons.

Purpose: MCDCCD00 was created to facilitate mapping, analysis, and use of Census 2000 data with other Maine GIS data layers. Other data layers for use with the MCDCCD00 coverage will follow. These depict the various levels of Census 2000 geography. In order of increased detail, these include VTD00 and BLKS00. Although Census boundaries represent real world features like rivers, lakes, railroads, political boundaries, etc., their primary purpose is for use in statistical analysis as such the Census TIGER/Line Files from which this coverage was derived may not coincide with representations of these features drafted for other purposes or at other map scales.

Supplemental Information: Three tables GEOMCDCCD, POPMAPS and MEPOPS are available to assist with the analysis of Census geographic areas in relation to Maine minor civil divisions. GEOMCDCCD is a crosswalk table that contains the COUSUB number, the unique identifier in MCDCCD, and the GEOCODE relationship. POPMAPS provides a related analysis of Census 2000 county divisions for Maine. Developed by the Maine Census Consortium, Maine State Planning Office, the file includes 2000 and 1990 populations, numeric and percent population change, population density 2000 and density change. MEPOPS has been developed by MEGIS. MEPOPS contains previously published population data for Maine Census 2000 CCDs from decennial census data 1950 through 1990 and the relate item COUSUB00 found in MCDCCD00. These tables are published and available for download through the Maine GIS internet Data Catalog at http://megis.maine.gov/catalog/ . There is often no direct 1:1 relationship between minor civil division boundaries and Census geographic units. The rural character of Maine, and especially northern Maine, requires the Census Bureau to report counts and tabulations over larger areas for statistical reasons and the Bureau of Census redefines these areas as population shifts. MCDCCD00 represents the closest correlation between Census geographic units and minor civil division boundaries. All other Census geographies represent areas either larger or smaller than town or township boundaries and often cross boundaries. In most cases additional analysis will be required to report Census counts and tabulations by town or township.

Status:

Progress: Complete

Maintenance and Update Frequency: None planned

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -71.167182

East Bounding Coordinate: -66.781362

North Bounding Coordinate: 47.459907

South Bounding Coordinate: 42.909619

Keywords:

Theme:

Theme Keyword Thesaurus: None

Theme Keyword: society

Theme Keyword: boundaries

Theme:

Theme Keyword Thesaurus: ISO 19115 Topic Categories

Theme Keyword: boundaries

Theme Keyword: society

Place:

Place Keyword Thesaurus: None

Place Keyword: maine

Access Constraints: None

Use Constraints: Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS

Data Set Credit: U.S. Department of Commerce (USDOC), Bureau of the Census (USCB), Maine Office of Geographic Information Systems (MEGIS) (comp., ed.)

Native Data Set Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959

Spatial Data Organization Information:

Direct Spatial Reference Method: Vector

Point and Vector Object Information:

SDTS Terms Description:

SDTS Point and Vector Object Type: GT-polygon composed of chains

Point and Vector Object Count: 554

Entity and Attribute Information:

Detailed Description:

Entity Type:

Entity Type Label: MCDCCD00

Entity Type Definition: polygon feature class

Entity Type Definition Source: Environmental Systems Research Institute, Inc. (ESRI)

Attribute:

Attribute Label: SHAPE

Attribute Definition: Feature geometry.

Attribute Definition Source: ESRI

Attribute Domain Values:

Unrepresentable Domain: Coordinates defining the features.

Attribute:

Attribute Label: COUSUB00NAME

Attribute Definition: Bureau of the Census name, for statistical purposes, of each CCD based on a place, county, or other well-known local name that identifies its location (Each unorganized territory is given a descriptive name, followed by the designation "unorg".)

Attribute Definition Source: Bureau of the Census Bureau, in cooperation with State officials and local census statistical areas committees

Attribute:

Attribute Label: COUSUB00

Attribute Definition: Federal Information Processing Standard (FIPS) code a single 5 character code field used by the Bureau of the Census to identify Census County Divisions (CCDS)

Attribute Definition Source: FIPS55-3 CODES FOR NAMED POPULATED PLACES, PRIMARY COUNTY DIVISIONS...

Attribute:

Attribute Label: CENTAG

Attribute Definition: item used to select a single feature for labeling and statistical purposes

Attribute:

Attribute Label: OBJECTID

Attribute Definition: Internal feature number.

Attribute Definition Source: ESRI

Attribute Domain Values:

Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute Label: SHAPE.AREA

Attribute:

Attribute Label: POP00

Attribute Definition: population by Minor Civil Division (MCD)/Census County Division (CCD) from Census 2000 Redistricting Data (P.L.94-171) Summary File

Attribute Definition Source: Census 2000 Redistricting Data (P.L.94-171) Summary File

Attribute:

Attribute Label: COUSUB00NUM

Attribute Definition: numeric equivalent of the FIPS code in COUSUB00

Attribute Definition Source: FIPS55-3 CODES FOR NAMED POPULATED PLACES, PRIMARY COUNTY DIVISIONS...

Attribute:

Attribute Label: GlobalID

Attribute:

Attribute Label: FIPSSTCO

Attribute Definition: A county identifier that consists of the three-digit Federal Information Processing Standard (FIPS) county code that represents each Maine county preceded by the number 23 which is the FIPS code for the State of Maine

Attribute Definition Source: FIPSPUB5-2 CODES FOR THE IDENTIFICATION OF THE STATES ... and FIPSPUB6-4 COUNTIES AND EQUIVALENT ENTITIES OF THE UNITED STATES ...

Attribute:

Attribute Label: SHAPE.LEN

Attribute:

Attribute Label: COUNTY

Attribute Definition: Maine county name

Overview Description:

Entity and Attribute Overview:

MCDCCD00 was created from Census 2000 TIGER/Line File data and built to POLYGON topology. Attributes include COUNTY, COUSUB00, COUSUB00NUM, COUSUB00NAME, POP00, and CENTAG. The item COUSUB00 can be used to relate other Census data files to the CCD polygons. The item CENTAG was added for correct labeling and/or statistics where multiple polygons contain the same COUSUB00 number as is the case in some coastal communities where islands are depicted. A table POPMAPS provides a related analysis of Census 2000 county subdivisions for Maine. Developed by the Maine Census Consortium, Maine State Planning Office, the file includes 2000 and 1990 populations, numeric and percent population change, population density 2000 and density change. A second table MEPOPS has been developed by MEGIS. MEPOPS contains previously published population data for Maine county subdivisions from decennial census data 1950 through 1990 and the relate item COUSUB00 found in MCDCCD00. Both tables are published and available for download through the MEGIS internet Data Catalog at http://megis.maine.gov/catalog/.

Entity and Attribute Detail Citation: The ArcView shapefile and ArcGIS geodatabase formats, commonly used for Maine GIS data, carry default identifiers and attributes that are software generated and/or important for internal recordkeeping. These are listed here to avoid repetition for every layer, and may not be repeated in the attribute descriptions and definitions of each layer. Common software generated identifiers and attributes in Maine GIS data include: FID (feature identifier), Shape (feature geometry), OBJECTID and SHAPE_lengt. In addition, most GIS formats will carry fields for PERIMETER, AREA and/or LENGTH according to feature geometry. These fields are typically available by default, with the units based on coordinate system or projection units of GIS data. Most GIS software packages also provide a means to calculate these values. It is important to test any columns containing PERIMETER, AREA or LENGTH values before using them for analysis purposes. These important values can be carried from format to format and become out-dated. Verify that the values are correct. Also, in your GIS software, please view the properties of data layers for the map units used to calculate these fields, and for the units set for display purposes.

Distribution Information:

Distribution Liability: See access and use coUsers must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGISnstraints information.

Standard Order Process:

Digital Form:

Digital Transfer Information:

Format Name: SDE Feature Class

Metadata Reference Information:

Metadata Date: 20161003

Metadata Contact:

Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata Standard Version: FGDC-STD-001-1998

Metadata Time Convention: local time