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 Release Information CB11-CN.76 **Contact:**  Public Information Office
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 FOR IMMEDIATE RELEASE:  THURSDAY, MARCH 10, 2011 U.S. Census Bureau Delivers Arizona's 2010 Census Population Totals, Including First Look at Race and Hispanic Origin Data for Legislative Redistricting The U.S. Census Bureau today released more detailed 2010 Census population totals and demographic characteristics to the governor and leadership of the state legislature in Arizona. These data provide the first look at population counts for small areas and race, Hispanic origin, voting age and housing unit data released from the 2010 Census. The official 2010 Census Redistricting Data Summary File can be used to redraw federal, state and local legislative districts under Public Law 94-171. The census data are used by state officials to realign congressional and state legislative districts in their states, taking into account population shifts since the 2000 Census. Data for Arizona show that the five most populous incorporated places and their 2010 Census counts are Phoenix, 1,445,632; Tucson, 520,116; Mesa, 439,041; Chandler, 236,123; and Glendale, 226,721. Phoenix grew by 9.4 percent since the 2000 Census. Tucson grew by 6.9 percent, Mesa grew by 10.8 percent, Chandler grew by 33.7 percent, and Glendale grew by 3.6 percent. The largest county is Maricopa, with a population of 3,817,117. Its population grew by 24.2 percent since 2000. The other counties in the top five include Pima, with a population of 980,263 (increase of 16.2 percent); Pinal, 375,770 (increase of 109.1 percent); Yavapai, 211,033 (increase of 26.0 percent); and Mohave, 200,186 (increase of 29.1 percent). The redistricting file consists of five detailed tables: the first shows the population by race, including six single race groups and 57 multiple race groups (63 total race categories); the second shows the Hispanic or Latino population as well as the non-Hispanic or Latino population cross-tabulated by the 63 race categories. These tabulations are repeated in the third and fourth tables for the population 18 years and over and are for the resident population of the United States. The fifth table provides counts of housing units and their occupancy status. These five detailed tables are available to the public online via FTP download at http://www2.census.gov/census_2010/01-Redistricting_File--PL_94-171/ and will be available within 24 hours at http://factfinder2.census.gov.  (Access 2003 or Access 2007 shells or SAS scripts are provided to assist with importing and accessing the summary file data from the FTP site.  These shells and scripts can be found at https://www.census.gov/rdo/tech_tips.  This Web page also contains special instructions for linking data downloaded from FactFinder and/or the FTP site with the Census Bureau's geographic products.) By April 1, all 50 states, the District of Columbia and Puerto Rico will receive these data for the following areas: state, congressional districts (for 111th Congress), counties, minor civil divisions, state legislative districts, places, school districts, census tracts, block groups and blocks, and if applicable, American Indian and Alaska Native areas and Hawaiian home lands. In addition, data are available for the 46 states that voluntarily provided voting districts to the Census Bureau's Redistricting Data Program. Unique geographies for the Commonwealth of Puerto Rico are also available. Race and Hispanic Origin Data The Census Bureau collects race and Hispanic origin information following the U.S. Office of Management and Budget's (OMB) standards for collecting and tabulating data on race and ethnicity. In October 1997, the OMB issued the current standards, which identify five race groups: white, black or African-American, American Indian or Alaska Native, Asian, and Native Hawaiian or Other Pacific Islander. The Census Bureau also utilized a sixth category - "some other race." Respondents who reported only one race are shown in these six groups. Individuals were first presented with the option to self-identify with more than one race in the 2000 Census, and this continued in the 2010 Census. People who identify with more than one race may choose to provide multiple races in response to the race question. The 2010 Census results provide new data on the size and makeup of the nation's multiracial population. Respondents who reported more than one of the six race groups are included in the "two or more races" population. There are 57 possible combinations of the six race groups. The Census Bureau included the "some other race" category for responses that could not be classified in any of the other race categories on the questionnaire. In the 2000 Census, the vast majority of people who reported only as "some other race" were of Hispanic or Latino origin. Data on Hispanics or Latinos, who may be of any race, were obtained from a separate question on ethnicity. How to Find Assistance Additional information about the redistricting data program, including news releases for other states, can be found online at http://2010.census.gov/news/press-kits/redistricting.html. More information on the redistricting data program is also available at https://www.census.gov/rdo/data. For further information about Arizona's 2010 Census redistricting data, contact: Census Redistricting Data Office, U.S. Census Bureau, 301-763-4039; e-mail: rdo@census.gov;
   Census Bureau Regional Office, Denver, 720-475-3670; e-mail: Denver.Regional.Office@census.gov;
   State Data Centers https://www.census.gov/sdc/network.html Description of Five Custom Tables In addition to the full set of detailed tables to be available on FactFinder within 24 hours, five custom tables are also attached to this news release. The first (Table 1) shows the counties and most populous incorporated places in 2010, their change since the 2000 Census and their population rank for both decades. Table 2 shows data for all ages and for those 18 and older for the Hispanic or Latino population, as well as for people who reported one race and those who reported two or more races. This table also shows the numeric and percent change in the population by race and Hispanic origin between 2000 and 2010. Table 3 is similar to Table 2. However, it shows data for the six "race alone or in combination" categories. The concept "race alone or in combination" includes people who reported only a single race (e.g., Asian) and people who reported that race in combination with one or more of the other major race groups (i.e., white, black or African-American, American Indian and Alaska Native, Native Hawaiian and Other Pacific Islander, and some other race). The concept "race alone or in combination," represents the maximum number of people who reported as that major race group, either alone or in combination with another race(s). The sum of the six individual "race alone or in combination" categories may add to more than the total population because people who reported more than one race were tallied in each race category. For people who reported two or more races, Table 4 shows the population in each of the 15 combinations of two races (for example, the number of people who reported being both white and black or African-American). Table 5 shows the population in the major race categories and of Hispanic or Latino origin for Arizona's counties and most populous incorporated places. Description of Two Custom Maps The attached custom maps show the total population by county for Arizona and the percent change in the population by county.  http://www2.census.gov/census_2010/01-Redistricting_File--PL_94-171/ http://factfinder2.census.gov https://www.census.gov/rdo/tech_tips Follow us on Twitter, Facebook, Flickr and YouTube (/uscensusbureau).
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