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Technical Tables

A subset of tables in the ACS provide information about technical details about how each survey was administered.

Because the ACS is a survey, data reported are estimates, not exact counts. Some tables included in each release provide information about the underlying details. This data is mostly used by the Census Bureau to monitor the accuracy and reliability of the ACS and to inform updates to the survey design and methodology. We include them in Census Reporter because it's easier to keep them when we process the other data than to skip over them. If you're using them for anything, let us know.

Quality Measures

Tables beginning with 98 organize various data which survey methodology experts can use to assess the quality of data collected by the ACS. Data in these tables is limited to large summary levels: the nation, individual states, and occasionally counties and/or places. Most users of Census Reporter will not have any need to use these tables.

Code Title
B98001ˆ Unweighted Housing Unit Sample
B98002ˆ Unweighted Group Quarters Population Sample
B98003ˆ Unweighted Total Population Sample
B98011ˆ Housing Unit Coverage Rate
B98012ˆ Total Population Coverage Rate by Sex
B98013ˆ Total Population Coverage Rate by Weighting Race and Hispanic or Latino Groups
B98014ˆ Group Quarters Population Coverage Rate
B98021ˆ Housing Unit Response and Nonresponse Rates With Reasons for Noninterviews
B98022ˆ Group Quarters Population Response and Nonresponse Rates With Reasons for Noninterviews
B98031ˆ Overall Person Characteristic Allocation Rate
B98032ˆ Overall Housing Unit Characteristic Allocation Rate
ˆOnly available in the 5-year ACS release.

Imputations

Imputation is the process of correcting for "non-response": that is, when answers on the ACS questionnaire are not completed, or are completed with invalid values. Allocation is one strategy for responding to the non-response, by using statistical procedures to impute ("fill in") missing values.

Tables beginning with 99 provide the allocation rate for nearly every question on the ACS questionnaire. Values are available for nearly all summary levels.

Code Title
B99011ˆ Allocation of Sex
B99012ˆ Allocation of Age
B99021ˆ Allocation of Race
B99031ˆ Allocation of Hispanic or Latino Origin
B99051ˆ Allocation of Citizenship Status
B99052§ˆ Allocation of Year of Entry
B99053ˆ Allocation of Year of Naturalization
B99061ˆ Allocation of Place of Birth
B99071ˆ Allocation of Mobility Status for the Population 1 Year and Over
B99072ˆ Allocation of Residence 1 Year Ago for the Population 1 Year and Over
B99080ˆ Allocation of Means of Transportation to Work
B99081ˆ Allocation of Place of Work
B99082ˆ Allocation of Private Vehicle Occupancy
B99083ˆ Allocation of Time of Departure to Go to Work
B99084ˆ Allocation of Travel Time to Work
B99085ˆ Allocation of Vehicles Available for Workers
B99086ˆ Allocation of Means of Transportation to Work
B99087ˆ Allocation of Time Arriving at Work From Home
B99088ˆ Allocation of Travel Time to Work
B99089ˆ Allocation of Vehicles Available for Workers
B99092ˆ Allocation of Relationship
B99102ˆ Allocation of Grandparents Living With Grandchildren
B99103ˆ Allocation of Grandparents Responsible for Grandchildren
B99104ˆ Allocation of Length of Time Grandparent Responsible for Own Grandchildren
B99121ˆ Allocation of Marital Status
B99122ˆ Allocation of Divorced
B99123ˆ Allocation of Married
B99124ˆ Allocation of Widowed
B99125ˆ Allocation of Times Married
B99126ˆ Allocation of Year Last Married
B99131ˆ Allocation of Marital Status for Females 15 to 50 Years
B99132ˆ Allocation of Fertility of Women 15 to 50 Years
B99141ˆ Allocation of School Enrollment
B99142ˆ Allocation of Grade Enrolled Enrolled in School
B99151ˆ Allocation of Educational Attainment
B99152ˆ Allocation of Field of Degree for Population 25 Years and Over
B99161ˆ Allocation of Language Status
B99162ˆ Allocation of Language Spoken at Home
B99163ˆ Allocation of Ability to Speak English
B99171ˆ Allocation of Poverty Status for Unrelated Individuals
B99172ˆ Allocation of Poverty Status for Families
B99181ˆ Allocation of Disability Items for the Civilian Noninstitutionalized Population
B99182ˆ Allocation of Hearing Difficulty for the Civilian Noninstitutionalized Population
B99183ˆ Allocation of Vision Difficulty for the Civilian Noninstitutionalized Population
B99184ˆ Allocation of Cognitive Difficulty for the Civilian Noninstitutionalized Population 5 Years and Over
B99185ˆ Allocation of Ambulatory Difficulty for the Civilian Noninstitutionalized Population 5 Years and Over
B99186ˆ Allocation of Self-care Difficulty for the Civilian Noninstitutionalized Population 5 Years and Over
B99187ˆ Age by Allocation of Independent Living Difficulty for the Civilian Noninstitutionalized Population 15 Years and Over
B99191ˆ Allocation of Individuals' Income - Percent of Income Allocated
B99192ˆ Allocation of Household Income - Percent of Income Allocated
B99193ˆ Allocation of Family Income -- Percent of Income Allocated
B99194ˆ Allocation of Nonfamily Household Income -- Percent of Income Allocated
B99201ˆ Allocation of Earnings - Percent of Earnings Allocated
B99211ˆ Allocation of Veteran Status
B99212ˆ Allocation of Period of Military Service for Civilian Veterans 18 Years and Over
B99221ˆ Allocation of Food Stamps/SNAP Receipt
B99231ˆ Allocation of Employment Status
B99232ˆ Allocation of Work Status
B99233ˆ Allocation of Usual Hours Worked Per Week
B99234ˆ Allocation of Weeks Worked
B99241ˆ Allocation of Industry for the Civilian Population
B99242ˆ Allocation of Occupation for the Civilian Population
B99243ˆ Allocation of Class of Worker for the Civilian Population
B99244ˆ Allocation of Industry for the Full-time, Year-round Civilian Population
B99245ˆ Allocation of Occupation for the Full-time, Year-round Civilian Population
B99246ˆ Allocation of Class of Worker for the Full-time, Year-round Civilian Population
B992510ˆ Allocation of Kitchen Facilities
B992511ˆ Allocation of House Heating Fuel
B992512ˆ Allocation of Vehicles Available
B992513ˆ Allocation of Telephone Service Available
B992514ˆ Allocation of Meals Included in Rent
B992515ˆ Allocation of Contract Rent
B992516ˆ Allocation of Rent Asked
B992518ˆ Allocation of Gross Rent
B992519ˆ Allocation of Value
B99252ˆ Allocation of Tenure
B992520ˆ Allocation of Price Asked
B992521ˆ Allocation of Mortgage Status
B992522ˆ Allocation of Mortgage Status and Selected Monthly Owner Costs
B992523ˆ Allocation of Selected Monthly Owner Costs for Owner-occupied Housing Units
B99253ˆ Allocation of Vacancy Status
B99254ˆ Allocation of Rooms
B99255ˆ Allocation of Units in Structure
B99256ˆ Allocation of Year Structure Built
B99257ˆ Allocation of Year Householder Moved Into Unit
B99258ˆ Allocation of Bedrooms
B99259ˆ Allocation of Plumbing Facilities
B992701ˆ Allocation of Health Insurance Coverage
B992702ˆ Allocation of Private Health Insurance
B992703ˆ Allocation of Public Health Insurance
B992704ˆ Allocation of Employer-based Health Insurance
B992705ˆ Allocation of Direct-purchase Health Insurance
B992706ˆ Allocation of Medicare Coverage
B992707ˆ Allocation of Medicaid/Means-tested Public Coverage
B992708ˆ Allocation of Tricare/Military Health Coverage
B992709ˆ Allocation of VA Health Care
B99281ˆ Allocation of Household Internet Access
B99282ˆ Allocation of Household Computer Type
B99283ˆ Allocation of Household Internet Subscription Type
§Tabulated for Puerto Rico. Add 'PR' to the table code. Column names may vary slightly from non-PR version.
ˆOnly available in the 5-year ACS release.