Data Dictionary: ACS 2005 -- 2007 (3-Year Estimates)
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Data Source: U.S. Census Bureau
Table: C24060. Occupation By Class Of Worker For The Civilian Employed Population 16 Years And Over [180]
Universe: Universe: Civilian employed population 16 years and over
Table Details
C24060. Occupation By Class Of Worker For The Civilian Employed Population 16 Years And Over
Universe: Universe: Civilian employed population 16 years and over
Variable Label
C24060001
C24060002
C24060003
C24060004
C24060005
C24060006
C24060007
C24060008
C24060009
C24060010
C24060011
C24060012
C24060013
C24060014
C24060015
C24060016
C24060017
C24060018
C24060019
C24060020
C24060021
C24060022
C24060023
C24060024
C24060025
C24060026
C24060027
C24060028
C24060029
C24060030
C24060031
C24060032
C24060033
C24060034
C24060035
C24060036
C24060037
C24060038
C24060039
C24060040
C24060041
C24060042
C24060043
C24060044
C24060045
C24060046
C24060047
C24060048
C24060049
C24060050
C24060051
C24060052
C24060053
C24060054
C24060055
C24060056
C24060057
C24060058
C24060059
C24060060
C24060061
C24060062
C24060063
C24060064
C24060065
C24060066
C24060067
C24060068
C24060069
C24060070
C24060071
C24060072
C24060073
C24060074
C24060075
C24060076
C24060077
C24060078
C24060079
C24060080
C24060081
C24060082
C24060083
C24060084
C24060085
C24060086
C24060087
C24060088
C24060089
C24060090
C24060091
C24060092
C24060093
C24060094
C24060095
C24060096
C24060097
C24060098
C24060099
C24060100
C24060101
C24060102
C24060103
C24060104
C24060105
C24060106
C24060107
C24060108
C24060109
C24060110
C24060111
C24060112
C24060113
C24060114
C24060115
C24060116
C24060117
C24060118
C24060119
C24060120
C24060121
C24060122
C24060123
C24060124
C24060125
C24060126
C24060127
C24060128
C24060129
C24060130
C24060131
C24060132
C24060133
C24060134
C24060135
C24060136
C24060137
C24060138
C24060139
C24060140
C24060141
C24060142
C24060143
C24060144
C24060145
C24060146
C24060147
C24060148
C24060149
C24060150
C24060151
C24060152
C24060153
C24060154
C24060155
C24060156
C24060157
C24060158
C24060159
C24060160
C24060161
C24060162
C24060163
C24060164
C24060165
C24060166
C24060167
C24060168
C24060169
C24060170
C24060171
C24060172
C24060173
C24060174
C24060175
C24060176
C24060177
C24060178
C24060179
C24060180
Relevant Documentation:
Excerpt from: Social Explorer; U.S. Census Bureau; 2005-2007 American Community Survey 3-Year Summary File: Technical Documentation.
 
Occupation
The data on occupation were derived from answers to Questions 39 and 40. Written responses to the occupation questions are coded using the occupational classification system developed for the 2000 census and modified in 2002. This system consists of 509 specific occupational categories, for employed people, including military, arranged into 23 major occupational groups. This classification was developed based on the Standard Occupational Classification (SOC) Manual: 2000 , published by the Executive Office of the President, Office of Management and Budget. Some occupation groups are related closely to certain industries. Operators of transportation equipment, farm operators and workers, and healthcare providers account for major portions of their respective industries of transportation, agriculture, and health care. However, the industry categories include people in other occupations. For example, people employed in agriculture include truck drivers and bookkeepers; people employed in the transportation industry include mechanics, freight handlers, and payroll clerks; and people employed in the health care profession include janitors, security guards, and secretaries.
Excerpt from: Social Explorer; U.S. Census Bureau; 2005-2007 American Community Survey 3-Year Summary File: Technical Documentation.
 
Class of Worker
The data on class of worker were derived from answers to Question 35. The information on class of worker refers to the same job as a respondent's industry and occupation and categorizes people according to the type of ownership of the employing organization. The class of worker categories are defined as follows:
Private wage and salary workers
Includes people who worked for wages, salary, commission, tips, pay-in-kind, or piece rates for a private for-profit employer or a private not-for-profit, tax-exempt or charitable organization. Self-employed people whose business was incorporated are included with private wage and salary workers because they are paid employees of their own companies.
ACS tabulations present data separately for these subcategories: "Private for-profit wage and salary workers," "Private not-for-profit wage and salary workers," "Self-employed in own incorporated business workers," and "Own not incorporated business workers."
Government workers
Includes people who were employees of any local, state, or federal governmental unit, regardless of the activity of the particular agency. For ACS tabulations, the data are presented separately for the three levels of government.
Employees of foreign governments, the United Nations, or other formal international organizations controlled by governments were classified as "federal government workers."
The class of worker government categories includes all government workers, though government workers may work in different industries. For example, people who work in a public elementary or secondary school are coded as local government class of workers.

Self-employed in own not incorporated business workers
Includes people who worked for profit or fees in their own unincorporated business, profession, or trade, or who operated a farm.

Unpaid family workers
Includes people who worked without pay in a business or on a farm operated by a relative.
Following the coding operation, a computer edit and allocation process excludes all responses that should not be included in the universe, and evaluates the consistency of the remaining responses. The codes for the three questions (industry, occupation, and class of worker) are then checked to ensure they are valid and consistent with the other codes returned for that respondent. Occasionally respondents supplied industry, occupation, or class of worker descriptions that were not sufficiently specific for precise classification, or they did not report on these questions at all. Certain types of incomplete entries were corrected using theAlphabetical Index of Industries and Occupations .
If one or more of the three codes was blank after the edit, a code was assigned from a donor respondent who was a "similar" person based on questions such as age, sex, education, and weeks worked. If all of the labor force and income data were blank, all of these economic questions were assigned from a "similar" person who had provided all the necessary data.
Excerpt from: Social Explorer; U.S. Census Bureau; 2005-2007 American Community Survey 3-Year Summary File: Technical Documentation.
 
Civilian Employed
This term is defined exactly the same as the term "employed" above.
Excerpt from: Social Explorer; U.S. Census Bureau; 2005-2007 American Community Survey 3-Year Summary File: Technical Documentation.
 
Age
The data on age were derived from answers to Question 2. The age classification is based on the age of the person in complete years at the time of interview. Both age and date of birth are used in combination to calculate the most accurate age at the time of the interview. Inconsistently reported and missing values are assigned or imputed based on the values of other variables for that person, from other people in the household, or from people in other households ("hot deck" imputation). Data on age are used to determine the applicability of other questions for a particular individual and to classify other characteristics in tabulations. Age data are needed to interpret most social and economic characteristics used to plan and analyze programs and policies. Therefore, age data are tabulated by many different age groupings, such as 5-year age groups.
Median Age
The median age is the age that divides the population into two equal-size groups. Half of the population is older than the median age and half is younger. Median age is based on a standard distribution of the population by single years of age and is shown to the nearest tenth of a year. (See the sections on "Standard Distributions" and "Medians" under "Derived Measures.")
Age Dependency Ratio
The age dependency ratio is derived by dividing the combined under-18 and 65-and-over populations by the 18-to-64 population and multiplying by 100.
Old-Age Dependency Ratio
The old-age dependency ratio is derived by dividing the population 65 years and over by the 18-to-64 population and multiplying by 100.
Child Dependency Ratio
The child dependency ratio is derived by dividing the population under 18 years by the 18-to-64 population, and multiplying by 100.
Limitation of the Data
Caution should be taken when comparing population in age groups across time. The entire population continually ages into older age groups over time and babies fill in the youngest age group. Therefore, the population of a certain age is made up of a completely different group of people in 2000 and 2007. Since populations occasionally experience booms/increases and busts/decreases in births, deaths, or migration (for example, the postwar Baby Boom from 1946-1964), one should not necessarily expect that the population in an age group in Census 2000 should be similar in size or proportion to the population in the same age group in the 2007 ACS. For example, Baby Boomers were age 36 to 54 in Census 2000 while they were age 44 to 62 in the 2007 ACS. Therefore, the age group 55 to 59 would show a considerable increase in population when comparing Census 2000 data with the 2007 ACS data.
Beginning in 2006, the population in group quarters (GQ) is included in the ACS. Some types of GQ populations have age distributions that are very different from the household population. The inclusion of the GQ population could therefore have a noticeable impact on the age distribution. This is particularly true for areas with a substantial GQ population.
Question/Concept History
The 1996-2002 American Community Survey question asked for month, day, and year of birth before age. Since 2003, the American Community Survey question asked for age, followed by month, day, and year of birth. In 2007, an additional instruction was provided with the age and date of birth question on the American Community Survey questionnaire to report babies as age 0 when the child was less than 1 year old. The addition of this instruction occurred after 2005 National Census Test results indicated increased accuracy of age reporting for babies less than one year old.