The 2011 Language Mapper shows where people speaking specific languages other than English live, with dots representing how many people speak each of 15 different languages. For each language, the mapper shows the concentration of those who report that they speak English less than "very well," a measure of English proficiency. The tool uses data collected through the American Community Survey from 2007 to 2011.
"This map makes it easy for anyone to plan language services in their community," said Nancy Potok, the Census Bureau's acting director. "Businesses can tailor communications to meet their customers' needs. Emergency responders can use it to be sure they communicate with people who need help. Schools and libraries can offer courses to improve English proficiency and offer materials written in other languages."
The languages available in the interactive map include Spanish, French, French Creole, Italian, Portuguese, German, Russian, Polish, Persian, Chinese, Japanese, Korean, Vietnamese, Tagalog and Arabic. After selecting one of these languages from the menu, users will see a national population density map, with each dot representing about 100 people who speak the language at home placed where these speakers are concentrated. The map also allows users to zoom in to a smaller geographic area, where each dot represents 10 people. The dots were placed in a random location within census tracts to protect the confidentiality of speakers.
Also released today, the report, Language Use in the United States: 2011, [PDF] details the number of people speaking languages other than English at home and their ability to speak English, by selected social and demographic characteristics. It shows that more than half (58 percent) of U.S. residents 5 and older who speak a language other than English at home also speak English "very well." The data, taken from the American Community Survey, are provided for the nation, states and metropolitan and micropolitan areas.r the nation, states and metropolitan and micropolitan areas.