Political Township Boundaries in Iowa for 2010, derived from Census Data


Metadata
File Identifier:
Metadata Language: eng; USA
: utf8
Resource Type: Dataset
Responsible Party:
Individual Name: NRGIS Librarian
Organisation Name: Iowa Geological and Water Survey, DNR
Role: Point Of Contact
Contact Info:
Voice: 319-335-1575
Delivery Point: 109 Trowbridge Hall
City: Iowa City
Administrative Area: IA
Postal Code: 52242-1319
E-Mail Address: gis_library@igsb.uiowa.edu
Metadata Date: 2011-12-08
Metadata Standard Name: ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
Metadata Standard Version: ISO 19115-2:2009(E)
Data Identification
Abstract: Currently, Iowa townships are not actually classified as civil townships, but as special district governments. Special district governments exist to provide only one or a limited number ofdesignated functions, and with sufficient administrative and fiscal autonomy to qualify as separate governments. Iowa townships today provide governmental functions that are outside the realm of both county and municipal authority. The three main functions of Iowa townships are fire protection, cemetery management, and fence maintenance and boundary dispute resolution within the township. The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. County subdivisions are the primary divisions of counties and their equivalent entities for the reporting of Census Bureau data, and they include legally minor civil divisions (MCDs) and statistical census county divisions (CCDs), and unorganized territories. For the 2010 Census, the legal MCDs are the primary governmental and/or administrative divisions of counties in 29 States and Puerto Rico; Tennessee changed from having CCDs for Census 2000 to having MCDs for the 2010 Census. In MCD States where no MCD exists or is not defined, the Census Bureau creates statistical unorganized territories to complete coverage. The entire area of the United States, Puerto Rico, and the Island Areas is covered by county subdivisions. The boundaries of all 2010 Census legal MCDs are as of January 1, 2010 as reported through the Census Bureau's Boundary and Annexation Survey (BAS). For the 2010 Census, CCDs or their equivalents are delineated in 21 States. The boundaries of all 2010 Census statistical CCDs were delineated as part of the Census Bureau's Participant Statistical Areas Program (PSAP).
Purpose: In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles.
Language: eng; USA
Citation:
Title: Political Township Boundaries in Iowa for 2010, derived from Census Data
Date:
Date: 2010-01-01
Date Type: Publication Date
Edition: 2010
Organisation Name: U.S. Department of Commerce, U.S. Census Bureau, Geography Division
Role: Originator
Organisation Name:
Role:
Contact Info:
Online Resource: ftp://ftp.igsb.uiowa.edu/gis_library/ia_state/admin_political_boundary/political_townships_2010.zip
Point Of Contact:
Organisation Name: U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Role: Point Of Contact
Contact Info:
Voice: 301-763-1128
Fax: 301-763-4710
Delivery Point: 4600 Silver Hill Road, Stop 7400
City: Washington
Administrative Area: DC
Postal Code: 20233-7400
Country: United States
E-Mail Address: geo.tiger@census.gov
Representation Type: Vector
Topic Category: Administrative and Political Boundaries
Keyword Collection:
Keyword: State or equivalent entity
Keyword: Polygon
Keyword: County Subdivision
Keyword: Subdivision
Keyword: Minor Civil Division
Keyword: MCD
Keyword: Census County Division
Keyword: CCD
Keyword: Town
Keyword: Township
Keyword: Unorganized -+Territory
Keyword: UT
Keyword: Barrio
Associated Thesaurus: None
Keyword: United States
Keyword: U.S.
Keyword: State or Equivalent Entity
Keyword: Iowa
Keyword: IA
Keyword: 19
Associated Thesaurus: INCITS.38-200x (R2004),INCITS.31-200x (R2007),INCITS.454-200x,INCITS 455-200x,INCITS 446-2008
Spatial Extent:
West Bounding Longitude: -96.639485
East Bounding Longitude: -90.140061
North Bounding Latitude: 43.501196
South Bounding Latitude: 40.37544
Constraints: Although efforts have been made in correcting errors in order to make this information useful to the Department, the Department assumes no responsibility for errors in the information. Similarly, the Department assumes no responsibility for the consequences of inappropriate uses or interpretations of the data made by anyone to whom this data has been made available. The Department bears no responsibility to inform users of any changes made to this data. Anyone using this data is advised that precision implied by the coverage may far exceed actual precision. Comments on this data are invited and the Department would appreciate that documented errors be brought to staff attention. No warranty, expressed or implied is made with regard to the accuracy of these data, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau in specific as to the spatial or attribute accuracy of the data. The act of distribution shall not constitute any such warranty and no responsibility is assumed by the U.S. government in the use of these files. The boundary information in the TIGER/Line Shapefiles is for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes do not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.
Legal Constraints:
Use Constraints: Other Restrictions
Other Constraints: Use Constraints: The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest.
Legal Constraints:
Access Constraints: Other Restrictions
Other Constraints: Access Constraints: None
Security Constraints:
Classification: PUBLIC
Classification System: State of Iowa Enterprise Data Classification Standard
Handling Description:
Distribution
Distribution Format:
Format Name:
Format Version:
File Decompression Technique: zip
Distribution Format:
Format Name: TGRSHP (compressed)
Format Version:
File Decompression Technique: PK-ZIP, version 1.93 A or higher
Transfer Options:
URL: ftp://ftp.igsb.uiowa.edu/gis_library/ia_state/admin_political_boundary/political_townships_2010.zip
Transfer Options:
URL: http://www.census.gov/geo/www/tiger
Distributor:
Distributor Contact:
Organisation Name: Iowa Geological and Water Survey, DNR
Position Name: GeoSpatial DBA / NRGIS Librarian
Role: Distributor
Contact Info:
Voice: 319-335-1575
Delivery Point: 109 Trowbridge Hall
City: Iowa City
Administrative Area: IA
Postal Code: 52242
E-Mail Address: gis_library@igsb.uiowa.edu
Distributor:
Distributor Contact:
Organisation Name: U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Role: Distributor
Contact Info:
Voice: 301-763-1128
Fax: 301-763-4710
Delivery Point: 4600 Silver Hill Road, Stop 7400
City: Washington
Administrative Area: DC
Postal Code: 20233-7400
Country: United States
E-Mail Address: geo.tiger@census.gov
Quality
Scope: Dataset