Accessing Census Data

San Diego County

Jerry Wong Information Services Specialist Los Angeles Regional Office U.S. Census Bureau Agenda

• Census Geography Census Maps Census Tract Maps • Census 2010 • American Community Survey • Census Bureau’s Website Quick Facts • American Factfinder • Exercises using American FactFinder • Questions Understanding Census Geography

United States Regions Divisions States Counties Census County Divisions (includes Incorporated Places, Census Designated Places and Minor Civil Divisions) Census Tracts Block Groups Blocks Hierarchy of Census Geography Understanding Census Geography

• Geography provides the framework for the collection, tabulation, and dissemination of Census Data

• Success of the Census and Census surveys rest not only on collecting data, but also linking data to correct geographic areas

• Two key questions when accessing data: 9 Population data tells us: How many? 9 Census Geography tells us: Where? Census Geography Two Broad Categories

• Legal and Administrative Entities Geographic areas that originate from legal action, treaties, statutes, ordinances, resolutions, or court decisions. Specific examples: Nation, States, Counties, Incorporated Places, American Indian Reservations, Hawaiian Home Lands, Congressional Districts, Voting Districts, School Districts, Traffic Analysis Zones, ZIP Codes • Statistical Entities Areas that evolve from practice, custom, usage, or need Specific examples: Regions, Divisions, Metropolitan Statistical Areas (MSA’s), Consolidated MSA’s, Primary MSA’s, Urbanized Areas, Census County Divisions, Census Tracts, Block Groups, Blocks Census Geography Census Designated Place • No legally defined corporate limits (unincorporated area) • Defined by the Census Bureau in co-operation with State, Tribal and local officials • Identified in data tables by the acronym “CDP” following the place name Census Geography Census Tract • Small, relatively permanent statistical subdivision of a county • Census tracts are designed to be relatively homogeneous units with respect to population characteristics, economic status, & living conditions • 1,200 to 8,000 population (optimum 4,000) • 480 to 3,200 housing units • Aggregate census tracts to delineate communities, neighborhoods, social service delivery areas, planning areas, marketing or trade areas Census Geography Block Group • Subdivision of a census tract • Block group is the smallest geographic unit for the tabulation of sample data • Block group consists of all blocks within a census tract with the same beginning number • 600 to 3,000 population • 240 to 1,200 housing units Block • Smallest geographic unit for which the Census Bureau tabulates 100% data (decennial census) • Many blocks correspond to individual city blocks bounded by streets • However blocks, especially in rural areas, may include many square miles and may have boundaries that are not streets Small Area Census Geography How It Fits Together

Census Tract > Place (City or CDP) > Census County Division (CCD) > County Census Geography Hierarchy (with 2010 Statistical Area Criteria)

Central axis describes a nesting relationship

• 600 to 3,000 • Cities and towns -- incorporated population • Census Designated Places (CDPs): • 240 to 1,200 - - Unincorporated; no size threshold housing units - - Separate and distinct from city/town - - Redefined each census

Blocks are not defined by population and are the smallest geographic level • 1,200 to 8,000 population (optimum 4,000) at which data are ever released • 480 to 3,200 housing units (Decennial Census, not the ACS) 11 Maps and Mapping Resources Go to www.census.gov Place cursor over the Geography tab and click on Maps and Data Census Tract Maps

Step 1: Click on Reference Maps Step 2: Reference Maps, Click on Census Reference Maps Step 3: Select 2010 Census Tract Maps Census Tract Maps

Step 4: Select the State of California Step 5: Select Santa Barbara County Census Tract Maps

Map ending in 000 is the index sheet for the entire county. Provides grid to identify Map for your desired community.

Maps of communities within the County.

Map Sheet 5 includes Carlsbad City Map Sheet 19 Map Sheet 18 Click Map Sheet 5 to view census tracts in Carlsbad Click Map Sheet 5 to view census tracts in Carlsbad Address Search Exercise

9 Conduct an Address Search 3900 Old Town Avenue, San Diego, CA 9 Compare your Census Tract to Your ZCTA (zip code) City, County

9 View the 2011 Demographic Profiles for each of your geographies

9 View profiles in your kit www.census.gov Address Search Click on street address link Enter Address and click GO 3900 Old Town Avenue, San Diego, CA Click on County, Census Tract, Place within State, 5-digit ZCTA to Your Selections All Geographies are in Your Selections Click CLOSE X Select Profiles DP02, DP03, DP04, DP05 and Table S1601 Language Spoken at Home Click View DP02 Selected Social Characteristics 2008-2012 ACS 5-Year Estimates County, Census Tract, City, ZCTA S1601 Language Spoken at Home County, Census Tract, City, ZCTA 2010 Census Data

• Age • Sex • Relationship • Hispanic Origin • Race • Number of People Living in Housing Unit • Tenure (Rent or Own) 2010 Census Data Products and Release Schedule Planned Data Products Data Being Lowest Level Release Date Released Geography Feb – Mar 2010 •Total Population Blocks 2011 Redistricting •Population 18 Years and Over Data •Race & Hispanic/Latino (P.L. 94-171) •Housing Counts by Occupancy Status (Occupied/Vacant)

May 2011 Demographic •Selected population and housing Places/Functioning Profile (DP-1) characteristics Minor Civil Divison •Includes Congressional Districts of the 111th Census Tracts Congress June – Aug Summary File 1 •Population Counts for 63 Race Categories & Blocks 2011 Hispanic/Latino •Population Counts for Many Detailed Race & Census Tracts Hispanic Latino Categories, and American Indian and Alaska Native tribes •Selected Population & Housing Characteristics Blocks/Census Tract Dec 2011 – Summary File 2 •Population & Housing Characteristics Iterated Census Tracts Apr 2012 for Detailed •Race •Hispanic/Latino •American Indian and Alaska Native Tribes 2010 Redistricting Data (Public Law 94‐171)

• QT-PL Race, Hispanic or Latino, Age, and Housing Occupancy: 2010

• H1 Occupancy Status

• P1 Race • P2 Hispanic or Latino, and Not Hispanic or Latino by Race • P3 Race for the Population 18 Years and Over • P4 Hispanic or Latino, and Not Hispanic or Latino by Race for the Population 18 Years and Over

• G001 Geographic Identifiers

• GCT-1 Geographic Comparison Table Race and Hispanic Origin or Latino 2010 (9 tables) • GCT-2 Population and Housing Occupancy Status 2010 (9 tables)

• National Redistricting File (27 tables) 2010 Summary File 1 (SF‐1)

• More detail than the Demographic Profile

• Similar content as Census 2000 Summary File 1 Cross tabulations of age, sex, households, families, relationship to householder, characteristics of owners and renters, detailed race and Hispanic or Latino origin groups and group quarters Summary File 1 Tables

• “P” tables: Population Subjects available down to the block level

• “PCT” tables: Population Subjects available down to the census tract level

• “PCO” tables: Population Subjects available down to the county level

• “H” tables: Housing Subjects available down to the block level

• “HCT” tables: Housing Subjects available down to the census tract level Race and Hispanic or Latino Origin

ƒ Detailed Black or African American, American Indian and Alaska Native tribes, Asian, Native Hawaiian and Other Pacific Islander, and Hispanic or Latino groups (PCT1- PCT11) – tract level

Selected tables iterated by: • A. White alone • B. Black or African American alone • C. American Indian and Alaska Native alone • D. Asian alone • E. Native Hawaiian and Other Pacific Islander alone • F. Some Other Race alone • G. Two or More Races • H. Hispanic or Latino • I. White alone, not Hispanic or Latino Census 2000, Census 2010 & American Community Survey (ACS)

Census 2000: Summary File 1 and 2 Census 2010: Summary File 1 and 2 Age Age Sex Sex Relationship Relationship Hispanic Origin Hispanic Origin Race Race Number of People Living in Housing Unit Number of People Living in Housing Unit Tenure (Rent/Own) Tenure (Rent/Own)

Census 2000: Summary File 3 & 4 American Community Survey Demographic Characteristics Demographic Characteristics Housing Characteristics Housing Characteristics Social Characteristics Social Characteristics Economic Characteristics Economic Characteristics History

• Decennial Census: Short Form 1940-2000 & Long Form

• American Community Survey 2005 Replaces Decennial Long Form

• Decennial Census: Short Form 2010 Only ACS Data

• Demographic Characteristics • Housing Characteristics • Social Characteristics • Economic Characteristics Items in red were also collected on the 2010 Census

Demographic Social Housing Economic Characteristics Characteristics Characteristics Characteristics

• Education • Age • Tenure • Income • Marital Status (Rent/Own) • Sex • Benefits • Fertility • Occupancy • Race • Employment • Grandparent • Structure Status • Hispanic Caregivers • Housing Value • Occupation Origin • Veterans • Taxes & • Industry • Disability Status Insurance • Commuting to • Place of Birth • Utilities Work • Citizenship • Mortgage/ • Year of Entry Monthly Rent • Language Spoken at Home • Ancestry/ Tribal Affiliation Recent Content Changes ƒ New Content 2008 1. Health Insurance Coverage 2. Veteran’s Service-connected Disability 3. Marital History

2009 1. Field of Undergraduate Degree

ƒ Wording and format changes in 2008 to match Census 2010 questions

40 Differences Between Decennial Census and ACS

• Census – Point in Time Data (April 1st.) • ACS – Period Estimates (Jan 1st. – Dec. 31st.)

ƒ 1 Year ƒ 3 Year ƒ 5 Year ACS Period Estimates

1-Year • Geographies of 65,000 Estimates or more

3-Year • Geographies of 20,000 Estimates or more 5-Year • All geographies Estimates ACS Data Products

Data Product Description Provide broad social, economic, housing, and demographic Data Profiles profiles. Summarize the information in the data profiles using concise, Narrative profiles nontechnical text. Comparison profile Compares over 5-year period selected enhancements. Provide broad social, economic, and housing profiles for a Selected population profiles large number of race, ethnic, ancestry, and country/region of birth groups. Provide access to the most detailed ACS data and cross Detailed tables tabulations of ACS variables. Similar to data profiles but include more detailed ACS data, Subject tables classified by subject. Ranking tables Provide state rankings of estimates across 86 key variables. Compare geographic areas other than states (e.g., counties Geographic comparison tables or congressional districts) for key variables. Predefined table with frequently requested information for a Quick table single geographic area. American Community Survey Selected Population Profiles

• Detailed Race and Hispanic Groups • Ancestry Groups • Tribal Groups • Population threshold minimum of 50 unweighted sample persons for specific groups • Similar to Census 2000 Summary File 4

44 Inflation Adjustment

ƒ Dollar-valued data items are inflation adjusted to the most recent year for the period ƒ Income, rent, home value, and energy costs, etc.

ƒ Adjusted using inflation factors based on the Consumer Price Index (CPI)

ƒ Adjustment designed to put the data into dollars with equal purchasing power

45 www.census.gov Quick Facts Quick Facts Quick Facts Quick Facts Select a County or City Quick Facts Select a County or City American FactFinder Exercise

Navigating Topics

• Select San Diego County

• Access 2012 ACS Data on Educational Attainment

Advanced Search Enter San Diego County, CA and click GO San Diego County is in Your Selections Search Results: 25,283 Tables Available Select NP01 Population and Housing Narrative Profile 2012 Click View Riverside County is in Your Selections Search Results: 21,421 Tables Available Select NP01 Population and Housing Narrative Profile 2011

Expand Topics Open People Select a Topic Education Select a Topic: Education Click on Educational Attainment Educational Attainment is in Your Selections Click CLOSE X Select a Table…S1501 Education Attainment and select B15002B Sex by Educational Attainment for the Population 25 Years and over (Black or African American Alone)

B15002B S1501 Education Attainment B15002B Sex by Educational Attainment for the Population 25 Years and over (Black or African American Alone) American FactFinder Exercise

• Use Geographies Tab to select All Cities (Places) Within San Diego County

• Access 2012 ACS 5-Year Tables • Median Value of Owner-Occupied Housing Units

• Modify and Download Tables

• Create a thematic map

Advanced Search Open Topics, Expand Dataset Select 20112 ACS 5-year estimates 2012 ACS 5-year estimates are in Your Selections Click CLOSE X Expand Geographies Select Name Tab Select City or Town Expand Within State Select California Click Within County Scroll down to San Diego County and select Click on link or check box All Places fully within/partially within San Diego Co. & click Add All Places…are in Your Selections Click CLOSE X Click Topics Begin Search for Median Value Owner Occupied Housing Units Expand Housing Expand Financial Characteristics Select Value of Home Value of Home in Your Selections Click CLOSE X Select Median Value (Dollars) Click View Modify Table Transpose Rows/Columns Transpose Rows/Columns Download

Reset Table Create a Map Mapping Data

To map data, you must have a table containing at least two or more “like” geographies, ie..two cities, two counties, two states. Create a Map Highlight a Data Row Click on a Value Click Show Map

Click Color Range Select Color Click OK Color Range Changed Change Classing Method from Natural Breaks to User Defined Enter Values Click GO Click Boundaries and Features Check Boundary and Check Label for 2012 Place Scroll down and click UPDATE Zoom In Zoom In American FactFinder Exercise

• Use Geographies Tab to select All Census Tracts Within Chula Vista City • Access 2012ACS 5‐Year Tables • Median Household Income Expand Topics Expand Dataset Select 2012 5-Year Estimates 2012 ACS 5-year estimates are in Your Selections Click CLOSE X Expand Geographies / Select Name Tab Select “all summary levels” click Census Tract Expand Within State Scroll down and Select California Expand Within Place Scroll down and select Chula Vista city Expand Per Page View from 25 to 75 Check All & Click Add All Census tracts are in Your Selections click CLOSE X Narrow Your Search: Enter Median Household Income Click GO Check Box and Click View or Click on Link for Table B19013 Create A Map Create A Map American FactFinder Exercise Create a Thematic Map

• Use Geographies Tab to select All ZCTAs Within Escondido (hint: 7 ZCTAs) • Access 2012 ACS 5‐Year Tables • Percent Bachelors Degree or Higher (Table S1501) Escondido Percent Bachelor’s Degree or Higher

• Use Geographies Tab to select All ZCTAs Within San Diego County • Access 2012 ACS 5‐Year Tables • Travel time to work Questions Resources: Need Assistance?

U.S. Census Bureau Partnership & Data Services Program 15350 Sherman Way, Suite 400 Van Nuys, CA 91406

(888) 806-6389 Toll Free

L.A. Regional Website: www.census.gov/losangeles [email protected] [email protected]

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