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Overview of the 2010 Census

Two Hundred Twenty Years and Counting …

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U.S. Constitution and the Census

The actual Enumeration shall be made within three Years after the first Meeting of the Congress of the United States, and within every subsequent Term of ten Years, in such Manner as they shall by Law direct.

- Article I, Section 2

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From 1790 to 2010

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1940 Census

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Processing Census Data

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Census 2000

Short Form6 pages, 8 questions (6 P, 2 H)

Long Form40 pages, 53 questions (32 P, 21 H)

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Census 2000 and the 2010 CensusWhat’s different?

2000 Census:

82% of households received the short form

18% of households received the long form

2010 Census:

100% of households receive the short form

No long form

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Questionnaire Delivery

Questionnaires delivered or mailed to all housing units in March 2010

• March 8-10 Advance Letter• March 15-17 Questionnaire• March 22-24 Reminder Postcard• APRIL 1 CENSUS DAY• April 1-10 Replacement Questionnaire

Bilingual Spanish/English Questionnaires (15 million housing units in 44 states) delivered or mailed in tracts with >40% Spanish-speaking households.

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2010 Census Data ProductsDefinitions

• Summary File 1• Counts and information [age, sex, race, Hispanic/Latino origin,

household relationship, whether residence is owned or rented] collected from all people and housing units

• Summary File 2• Population and housing characteristics iterated for many detailed

race and Hispanic or Latino categories, and American Indian and Alaska Native tribes

• P.L. 94-171• Redistricting Data Summary File contains summary statistics on

counts of the total population, for the population 18 years and over, for 63 racial categories, and for Hispanic or Latino origin

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2010 Census Data ProductsRelease Schedule

Planned Release Date

Data Product

12/31/10 Apportionment Population Counts

2/11 – 3/11 Census Redistricting Summary File (P.L. 94-171 ) for States

5/11 Demographic Profile

6/11 – 8/11 Summary File 1 for States

12/11 – 4/12 Summary File 2 for States

12/12 American Indian and Alaska Native Summary File

1/13 Congressional District Summary File (113th Congress)

6/13 State Legislative District Summary File

TBD PUMS (10%)

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Apportionment

• Delivered to the President by December 31, 2010• Included:

• Total Population of United States• Total Population for each state

• Resident population• Overseas population

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P.L. 94-171

• Deliver DVD to redistricting officials in each state on a flow basis (2/11-3/11)

• Included:• First race and Hispanic origin counts• Counts for 63 race combinations• Total population and age 18+• Housing unit counts (occupied and vacant)

• Geography:• States to blocks • Voting districts, state legislative districts, 111th Congressional

Districts, school districts

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Demographic Profile

• Released via American FactFinder and FTP site (5/11)

• Included:

• Geography:• Nation, states, counties, functioning minor civil divisions, places,

American Indian and Alaska Native Areas, core-based statistical areas

• Race and Hispanic origin • Population in Group Quarters

• Households • Housing Tenure (owner/renter)

• Families • Housing Occupancy Rates

• Age and sex • Housing Vacancy Rates

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Summary File 1

• Released via American FactFinder and FTP site (6/11-8/11)

• Included:

• Geography:• States to blocks

• Will include unmarried partner households

Table subjects:

• Race and Hispanic Origin

• Households

• Families

• Age and Sex

• Population in Group Quarters by Type

• Housing Units

By Major Race Categories:

•White alone (A)

•Black or African American alone (B)

•American Indian and Alaska Native alone (C)

•Asian alone (D)

•Native Hawaiian and Other Pacific Islander alone (E)

•Some Other Race alone (F)

•Two or more races alone (G)

•Hispanic or Latino (H)

•White alone, not Hispanic or Latino (I)

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Summary File 2

• Released via American FactFinder and FTP site (12/11-4/12)

• Included:

• Geography:• States to census tracts• No Block Groups or Blocks• Urban/rural available Jan. 2013

Table subjects:

• Households

• Families

• Age and Sex

• Population in Group Quarters by Type

• Housing Units

Repeated for more than 250 population groups:

•Filipino alone

•Aleut alone

•Pauite alone or in combination

•Mexican alone

•Colombian alone

•Guatemalan alone or in combination

•Apache alone or in combination

•White; American Indian and Alaska Native

•Black or African American alone, not Hispanic or Latino

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American Indian and Alaska NativeSummary File

• Released via American FactFinder and FTP site (12/12)

• Included:

• Geography:• American Indian and Alaska Native Areas

Table subjects:

• Households

• Families

• Age and Sex

• Population in Group Quarters by Type

• Housing Units

Repeated for more than 1,000 population groups:

•Colorado River alone

•Navajo alone or in any combination

•Havasupai alone or in any combination

•Hopi alone

•Salt River Pima-Maricopa alone

•Fort Mojave Indian Tribe of Arizona alone

•Cocopah Tribe of Arizona alone or in any combination

•American Indian alone

•American Indian alone or in any combination

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Congressional DistrictSummary File

• Released via American FactFinder and FTP site (1/13)

• Includes:• Summary File 1 content

• Geography:• 113th Congressional Districts• Census Tracts

• Additional releases as redistricting occurs throughout the decade

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State Legislative DistrictSummary File

• Released via American FactFinder and FTP site (6/13)

• Includes:• Summary File 1 content

• Geography:• State Legislative Districts drawn following the 2010 Census• Places• Separate file containing geographic attributes for blocks within

SLDs

• Additional releases as redistricting occurs throughout the decade

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PUMS FilesPublic Use Microdata Sample

• Release via FTP site and DVD (date TBD)

• Includes:• 100-percent data• 10% sample size

• Census 2000 PUMS files were 1% (100% data) and 5% (sample data)

• Geography:• PUMAs (100,000 or more population)

• Delineated in 2012