C25121. Household Income in the Past 12 Months (In 2008 Inflation-Adjusted Dollars) by Value [31] - American Community Survey 2008 (ACS08) - ACS 2008 (1-Year Estimates)

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Data Dictionary:

ACS 2008 (1-Year Estimates)

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Survey: ACS 2008 (1-Year Estimates)

Data Source:

U.S. Census Bureau

Data set: American Community Survey 2008 (ACS08)

Table:

C25121. Household Income in the Past 12 Months (In 2008 Inflation-Adjusted Dollars) by Value [31]

Universe: Owner-occupied housing units

Table Details

C25121.

Household Income in the Past 12 Months (In 2008 Inflation-Adjusted Dollars) by Value

Universe: Owner-occupied housing units

Variable	Label
C25121001	Total
C25121002	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Less than $10,000
C25121003	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value Less than $60,000
C25121004	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $60,000 to $99,999
C25121005	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $100,000 to $199,999
C25121006	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $200,000 or More
C25121007	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- $10,000 to $19,999
C25121008	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value Less than $60,000
C25121009	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $60,000 to $99,999
C25121010	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $100,000 to $199,999
C25121011	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $200,000 or More
C25121012	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- $20,000 to $34,999
C25121013	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value Less than $60,000
C25121014	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $60,000 to $99,999
C25121015	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $100,000 to $199,999
C25121016	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $200,000 or More
C25121017	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- $35,000 to $49,999
C25121018	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value Less than $60,000
C25121019	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $60,000 to $99,999
C25121020	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $100,000 to $199,999
C25121021	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $200,000 or More
C25121022	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- $50,000 to $74,999
C25121023	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value Less than $60,000
C25121024	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $60,000 to $99,999
C25121025	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $100,000 to $199,999
C25121026	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $200,000 or More
C25121027	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- $75,000 or More
C25121028	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value Less than $60,000
C25121029	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $60,000 to $99,999
C25121030	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $100,000 to $199,999
C25121031	Household Income the Past 12 Months (in 2008 Inflation-Adjusted Dollars) -- Value $200,000 or More

Relevant Documentation:

Excerpt from:	Social Explorer; U.S. Census Bureau; American Community Survey 2008 Summary File: Technical Documentation.
	ACS 2008-1yr Summary File: Technical Documentation -> Appendix B. Subject Definitions -> Population Variables -> Income in the Past 12 Months -> Income of Households

Income of Households

This includes the income of the householder and all other individuals 15 years old and over in the household, whether they are related to the householder or not. Because many households consist of only one person, average household income is usually less than average family income. Although the household income statistics cover the past 12 months, the characteristics of individuals and the composition of households refer to the time of interview. Thus, the income of the household does not include amounts received by individuals who were members of the household during all or part of the past 12 months if these individuals no longer resided in the household at the time of interview. Similarly, income amounts reported by individuals who did not reside in the household during the past 12 months but who were members of the household at the time of interview are included. However, the composition of most households was the same during the past 12 months as at the time of interview.

Excerpt from:	Social Explorer; U.S. Census Bureau; American Community Survey 2008 Summary File: Technical Documentation.
	ACS 2008-1yr Summary File: Technical Documentation -> Appendix B. Subject Definitions -> Population Variables -> Income in the Past 12 Months -> Adjusting Income for Inflation

Adjusting Income for Inflation

Income components were reported for the 12 months preceding the interview month. Monthly Consumer Price Indices (CPI) factors were used to inflation-adjust these components to a reference calendar year (January through December). For example, a household interviewed in March 2008 reports their income for March 2007 through February 2008. Their income is adjusted to the 2008 reference calendar year by multiplying their reported income by 2008 average annual CPI (January-December 2008) and then dividing by the average CPI for March 2007-February2008.

In order to inflate income amounts from previous years, the dollar values on individual records are inflated to the latest years dollar values by multiplying by a factor equal to the average annual CPI-U-RS factor for the current year, divided by the average annual CPI-U-RS factor for the earlier/earliest year.

Excerpt from:	Social Explorer; U.S. Census Bureau; American Community Survey 2008 Summary File: Technical Documentation.
	ACS 2008-1yr Summary File: Technical Documentation -> Appendix B. Subject Definitions -> Housing Variables -> Value

Value

The data on value (also referred to as "price asked" for vacant units) were obtained from Housing Question 16 in the 2008 American Community Survey. The question was asked at housing units that were owned, being bought, vacant for sale, or sold not occupied at the time of the survey. Value is the respondent's estimate of how much the property (house and lot, mobile home and lot, or condominium unit) would sell for if it were for sale. If the house or mobile home was owned or being bought, but the land on which it sits was not, the respondent was asked to estimate the combined value of the house or mobile home and the land. For vacant units, value was the price asked for the property. Value was tabulated separately for all owner-occupied and vacant-for-sale housing units, as well as owner-occupied and vacant-for-sale mobile homes.

Adjusting Value for Inflation

Since value collected before 2008 is the only dollar amount captured on the questionnaire in specified intervals, the category boundaries for previous years are not adjusted for inflation. In the comparison profiles, however, the median value is adjusted for inflation by multiplying a factor equal to the average annual CPI-U-RS factor for the current year, divided by the average annual CPI-U-RS factor for the earlier/earliest year.

Median and Quartile Value

The median divides the value distribution into two equal parts: one-half of the cases falling below the median value of the property (house and lot, mobile home and lot, or condominium unit) and one-half above the median. Quartiles divide the value distribution into four equal parts. Median and quartile value are computed on the basis of a standard distribution. (See the "Standard Distributions" section under "Derived Measures.") Median and quartile value calculations are rounded to the nearest hundred dollars. Upper and lower quartiles can be used to note large value differences among various geographic areas. (For more information on medians and quartiles, see "Derived Measures.")

Aggregate Value

Aggregate value is calculated by adding all of the value estimates for owner occupied housing units in an area. Aggregate value is rounded to the nearest hundred dollars. (For more information on aggregates, see "Derived Measures.")

Limitation of the Data

The Census Bureau tested the changes introduced to the 2008 version of the value question in the 2006 ACS Content Test. The results of this testing show that the changes may introduce an inconsistency in the data produced for this question as observed from the years 2007 to 2008, see "2006 ACS Content Test Evaluation Report Covering Property Value" (http://www.census.gov/acs/www/AdvMeth/content_test/H7_Property_Value.pdf).

Question/Concept History

The 1996-1998 American Community Survey question provided a space for the respondent to enter a dollar amount. From 1999-2007 the question provided 19 pre-coded response categories from "Less than $10,000" to "$250,000 or more - Specify ." Starting in 2004, value was shown for all owner-occupied housing units, unlike from1996-2003 in which value was shown only for specified owner-occupied housing units. Changes introduced in 2008 were removing the pre-coded response categories and adding a write-in box for the respondent to enter the property value amount in dollars, and revising the wording of the question to ask, "About how much do you think this house and lot, apartment, or mobile home (and lot, if owned) would sell for if it were for sale?"