Immigration and Intergenerational Mobility in Metropolitan Los Angeles (IIMMLA), 2004 (ICPSR 22627)

Principal Investigator(s): Rumbaut, Rubén G., University of California-Irvine; Bean, Frank D., University of California-Irvine; Chávez, Leo R., University of California-Irvine; Lee, Jennifer, University of California-Irvine; Brown, Susan K., University of California-Irvine; DeSipio, Louis, University of California-Irvine; Zhou, Min, University of California-Los Angeles


IIMMLA was supported by the Russell Sage Foundation. Since 1991, the Russell Sage Foundation has funded a program of research aimed at assessing how well the young adult offspring of recent immigrants are faring as they move through American schools and into the labor market. Two previous major studies have begun to tell us about the paths to incorporation of the children of contemporary immigrants: The Children of Immigrants Longitudinal Study (CILS), and the Immigrant Second Generation in New York study. The Immigration and Intergenerational Mobility in Metropolitan Los Angeles study is the third major initiative analyzing the progress of the new second generation in the United States. The Immigration and Intergenerational Mobility in Metropolitan Los Angeles (IIMMLA) study focused on young adult children of immigrants (1.5- and second-generation) in greater Los Angeles. IIMMLA investigated mobility among young adult (ages 20-39) children of immigrants in metropolitan Los Angeles and, in the case of the Mexican-origin population there, among young adult members of the third- or later generations. The five-county Los Angeles metropolitan area (Los Angeles, Orange, Ventura, Riverside and San Bernardino counties) contains the largest concentrations of Mexicans, Salvadorans, Guatemalans, Filipinos, Chinese, Vietnamese, Koreans, and other nationalities in the United States. The diverse migration histories and modes of incorporation of these groups made the Los Angeles metropolitan area a strategic choice for a comparison study of the pathways of immigrant incorporation and mobility from one generation to the next. The IIMMLA study compared six foreign-born (1.5-generation) and foreign-parentage (second-generation) groups (Mexicans, Vietnamese, Filipinos, Koreans, Chinese, and Central Americans from Guatemala and El Salvador) with three native-born and native-parentage comparison groups (third- or later-generation Mexican Americans, and non-Hispanic Whites and Blacks). The targeted groups represent both the diversity of modes of incorporation in the United States and the range of occupational backgrounds and immigration status among contemporary immigrants (from professionals and entrepreneurs to laborers, refugees, and unauthorized migrants). The surveys provide basic demographic information as well as extensive data about socio-cultural orientation and mobility (e.g., language use, ethnic identity, religion, remittances, intermarriage, experiences of discrimination), economic mobility (e.g., parents' background, respondents' education, first and current job, wealth and income, encounters with the law), geographic mobility (childhood and present neighborhood of residence), and civic engagement and politics (political attitudes, voting behavior, as well as naturalization and transnational ties).

Access Notes

  • The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.


Dataset - Download All Files (53.016 MB)
SAS    SPSS    Stata    ASCII    Excel/TSV
ASCII + SAS Setup    SPSS Setup    Stata Setup   

Study Description


Rumbaut, Rubén G., Frank D. Bean, Leo R. Chávez, Jennifer Lee, Susan K. Brown, Louis DeSipio, and Min Zhou. Immigration and Intergenerational Mobility in Metropolitan Los Angeles (IIMMLA), 2004. ICPSR22627-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2008-07-01.

Persistent URL:

Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote XML (EndNote X4.0.1 or higher)


This study was funded by:

  • Russell Sage Foundation

Scope of Study

Subject Terms:    bilingualism, citizenship, community involvement, community participation, cultural identity, education, educational background, employment, ethnic identity, family background, family history, family size, family structure, generations, household composition, household income, immigration, immigration status, income, job history, marital status, neighborhood characteristics, neighborhood conditions, occupational status, personal income, political attitudes, political awareness, public assistance programs, social services, socioeconomic status

Geographic Coverage:    California, Los Angeles, United States

Time Period:   

  • 2002--2008

Date of Collection:   

  • 2004-04--2004-10 (telephone survey)

Unit of Observation:    individual

Universe:    Young adults aged 20-39 from six foreign-born and foreign-parentage groups: Mexican, Vietnamese, Filipino, Korean, Chinese, and Central American (Guatemalan and Salvadoran), as well as native-born and native-parentage Mexican-Americans, and non-Hispanic Whites and Blacks, in the Los Angeles metropolitan area.

Data Type(s):    survey data

Data Collection Notes:

Data collection for IIMMLA was subcontracted to and carried out by the Field Research Corporation, San Francisco, CA.


Sample:    Multistage random sampling.

Mode of Data Collection:    telephone interview

Extent of Processing:   ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Performed consistency checks.
  • Standardized missing values.
  • Checked for undocumented or out-of-range codes.


Original ICPSR Release:   2008-06-19

Version History:

  • 2008-07-01 Edits were made to the metadata record.

Related Publications



Metadata Exports

If you're looking for collection-level metadata rather than an individual metadata record, please visit our Metadata Records page.

Download Statistics