1. 1 Language Data from the American Community Survey

2. 2 Overview Language data background Differences between the Census and the American Community Survey Accessing language data Language-Use website Other resources –PUMS, DataFerrett, and Custom Tabulations Summary

3. 3 Language Data Questions

4. 4 Language Data Background Processing of Language Spoken at Home Language write-ins are coded to about 380 detailed language categories We use the standard classification list of 39 categories for detailed language groups Most tables collapse into the 4 major language groups: Spanish, Other Indo-European languages, Asian and Pacific Island languages, and all other languages

5. 5 Language Data Background Questions Asked – Ability to Speak English English-speaking ability represents the person’s own perception about his or her English-speaking ability The Census Bureau does not define Limited English Proficiency or non-Limited English Proficient populations

6. 6 Language Data Background Questions Asked – Ability to Speak English In 1982, the U.S. Census Bureau fielded the English Language Proficiency Survey (ELPS) and concluded that those who spoke English less than “very well” had some difficulty with the tests administered in the ELPS No study has been conducted to measure the performance of the ACS question on English- speaking ability since the 1982 ELPS

7. 7 Language Data Background Questions Asked – Linguistic Isolation A linguistically isolated household is one in which no person age 14 years or over speaks English at least “very well.” That is no person age 14 or over speaks only English at home or speaks another language at home and speaks English “very well.”

8. 8 American Community Survey Differences with the Decennial Census 2010 Census focus is on the count and basic demographics The sample data, historically collected on the “long form” in the census, are now collected throughout the decade in the ACS ACS samples about 3 million addresses each year

9. 9 American Community Survey Differences with the Decennial Census The ACS provides yearly updates (1-year estimates) on socio-economic characteristics such as language use 3-year estimates will provide data for populations of 20,000 or more 5-year of sample are needed to produce estimates comparable to the 2000 Census long form sample products

10. 10 American Community Survey Data Products Release Schedule - Data products are released in the year following the single-year or multi-year period in which data are collected. Data ProductPopulation SizeCY of Area20062007200820092010201120122013 1-Year Estimates65,000+20052006200720082009201020112012 for Data Collected in: 3-Year Estimates20,000+2005-20072006-20082007-20092008-20102009-20112010-2012 for Data Collected in: 5-Year EstimatesAll Areas*2005-20092006-20102007-20112008-2012 for Data Collected in: * Five-year estimates will be available for areas as small as census tracts and block groups. Source: US Census Bureau

11. 11 Accessing Language Data Demonstration on how a data user (you) can access the wealth of ACS data available from the American FactFinder (AFF) website You can use AFF for Census 2000, the ACS, the Puerto Rico Community Survey, and other surveys. Start at http://www.census.gov/http://www.census.gov/

12. 12 Other Resources The ACS Public Use Microdata Sample (PUMS) file website http://www.census.gov/acs/www/Products/PUMS/index.html The ACS Custom Tabulation website http://www.census.gov/acs/www/Products/spec_tabs/index.htm The DataFerrett website http://dataferrett.census.gov/ The Language-Use website http://www.census.gov/population/www/socdemo/lang_use.html

13. 13 For more information Subscribe to “ACS Alert” http://www.census.gov/acs/www/Special/Alerts.htm Visit the ACS/PRCS website: http://www.census.gov/acs/www Contact by telephone: General Questions on the ACS: 1-800-923-8282 Questions on Language Data: 301-763-2464 Contact by email: General Questions on the ACS acso.users.support@census.govacso.users.support@census.gov Questions on Language Data: Hyon.B.ShinATcensus.gov