Profile Picture Carlos Perez

created Sep 28 2017

updated Sep 28 2017

Description

Census data for tracts (geospatial extent) from the American Community Survey, gathered from 2010 through 2014.

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Category
Demographics
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Tags
colorado, bic, dola, state demography office, blocks, census, tracts, counties, zip codes, zip, population, household, occupancy, occupation, gocode, gocodecolorado
Licensing and Attribution
Data Provided By
DOLA - Department of Local Affairs
Source Link
https://dola.colorado.gov/gis-php/files/download/ACS1014_tract.zip
License
Public Domain
Contributing Agency Information
Citation
DOLA - Department of Local Affairs
Agency Program Page
https://www.colorado.gov/pacific/dola
Agency Data Series Page
https://www.colorado.gov/pacific/dola/state-demography-office
Data Source
US Census
Dataset Coverage
Unit of Analysis
Census Tracts
Granularity
Vector Polygon data
Geographic Coverage
State
Data Description
Collection Mode
TIGER line files
Collection Method
The 2000 census marked the last year that the long form was distributed to 1 in 6 households (a 17% sample), and in 2010 the actual sample size for the long form was 2.5% per year (totaling 12.5% over a 5 year cycle). In 2000, one household answered the long form questions on behalf of 5 other households, and in 2010 a single household provides data for between seven other households (5 year averages) and 39 other households (1 year averages for larger places).
Data Collection Instrument
Surveys
Date of Initial Dataset Creation
2010
Long Description
Census Data is collected every 10 years by mail surveys to every household with primary data collection fields of population, gender, race and number of occupants. Overcounts are known to exist in student and dual-residence populations, while undercounts are a given for homeless and illegal immigrants. Errors arise from both sampling and non-sampling methods. Sampling errors are misrepresentations of a larger population based on the selection of the representative sample. Accuracy of the estimates depend in part on how typical the people within the sampled housing units are to others within their area. The Census estimates sampling error based on the population and its extent of variability. The long-form of the Census is distributed to a subset of households, and includes additional data related to households, economy, employment, occupation, as well as occupancy and building structure data. Household fields include: Total Households, Total Families, Households by Household Type by Household Size, Persons in Group Quarters by Detailed Group Quarters Type, Persons 25 Years and Over by Educational Attainment, Persons 16 Years and Over by Labor Force and Employment Status, Median Household Income, Median Family Income, Per Capita Income, Persons by Poverty Status in Previous Year. Occupancy fields include: Total Housing Units, Housing Units by Occupancy Status, Vacant Housing Units by Vacancy Status, Occupied Housing Units by Tenure, Median Housing Value, Median Contract Rent.
Geospatial
Collection Method
Census Tract
Horizontal Accuracy
Census data is reliable as within the constraints of funding, staffing and legislation. Sampling and Non-sampling errors include, but are not limited to, missing survey responses, under and over counts, inverviewer error.
Horizontal Coordinate System
NAD83 / GCS_North_American_1983
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