Immigration enforcement in the U.S. is mainly handled by federal agencies, but local police often act as intermediaries. While scholars have studied agency engagement, few have examined how organizational traits such as police diversification, political climate, and racial composition influence local enforcement practices. Using data from 2,500 local law enforcement agencies collected in the 2020 LEMAS survey, this study examines whether agency characteristics, county demographics, or state politics are associated with the practice of checking and reporting immigration status. Findings indicate that department size and agency policy on immigration enforcement are the most robustly associated with enforcement. Agency type (i.e., municipal/sheriffs/county agency) is conditioned by location in states with sanctuary policies.
ArmentaA. (2016). Between public service and social control: Policing dilemmas in the era of immigration enforcement. Social Problems, 63(1), 111–126.
5.
ArmentaA.AlvarezI. (2017). Policing immigrants or policing immigration? Understanding local law enforcement participation in immigration control. Sociology Compass, 11(2), e12453.
6.
BlalockH. M.Jr. (1967). Status inconsistency, social mobility, status integration and structural effects. American Sociological Review, 790–801.
7.
BlumerH. G. (1958). Race prejudice as a sense of group position. Pacific Sociological Review, 1(1), 3–7.
8.
BocarA. B.KnoxD.MummoloJ.RiveraR. (2021). The role of officer race and gender in police-civilian interactions in Chicago. Science, 371, 696–702.
9.
BrantonR. P.DunawayJ. (2009). Spatial proximity to the US—Mexico border and newspaper coverage of immigration issues. Political Research Quarterly, 62(2), 289–302.
10.
CappsR.RosenblumM. R.RodríguezC.ChishtiM. (2011). Delegation and divergence: A study of 287(g) state and local immigration enforcement. Migration Policy Institute.
11.
ChacónJ. M.CoutinS. B. (2018). Racialization through enforcement. In BosworthM.ParmarA.VázquezY. (Eds.), Race, criminal justice, and migration control: Enforcing the boundaries of belonging (pp. 159–175). Oxford Academic.
12.
ChapmanC. (2012). Use of force in minority communities is related to police education, age, experience, and ethnicity. Police Practice and Research, 13(5), 421–436.
ColemanM. (2012). The “local” migration state: The site-specific devolution of immigration enforcement in the US South. Law & Policy, 34(2), 159–190.
15.
CordnerG.CordnerA. (2011). Stuck on a Plateau? Obstacles to recruitment, selection, and retention of women police. Police Quarterly, 14(3), 207–226.
16.
DeckerS. H.LewisP. G.ProvineD. M.VarsanyiM. W. (2009). On the frontier of local law enforcement: Local police and federal immigration law. In McDonaldW. F. (Ed.), Immigration, crime, and justice. (pp. 261–277). Emerald/JAI Press.
17.
EppC. R.Maynard-MoodyS.Haider-MarkelD. (2017). Beyond profiling: The institutional sources of racial disparities in policing. Public Administration Review, 77(2), 168–178.
HammerB.KafuraC. (2022). Republicans and democrats in different worlds on immigration. Chicago Council on Global Affairs.
20.
HernandezK. L. (2010). Migra! A history of the U.S. Border Patrol. University of California Press.
21.
HongS. (2016). Representative bureaucracy, organizational integrity, and citizen coproduction: Does an increase in police ethnic representativeness reduce crime? Journal of Policy Analysis and Management, 35(1), 11–33.
22.
HopkinsD. J. (2010). Politicized Places: Explaining Where and When Immigrants Provoke Local Opposition. American Political Science Review, 104(1), 40–60.
23.
KirkD. S.PapachristosA. V.FaganJ.TylerT. R. (2012). The paradox of law enforcement in immigrant communities: Does tough immigration enforcement undermine public safety? The ANNALS of the American Academy of Political and Social Science, 641(1), 79–98.
24.
LeeE. (2002). The Chinese exclusion example: Race, immigration, and American gatekeeping, 1882-1924. Journal of American Ethnic History, 21(3), 36–62.
25.
LewisP. G.ProvineD. M.VarsanyiM. W.DeckerS. H. (2013). Why do (some) city police departments enforce federal immigration law? Political, demographic, and organizational influences on local choices. Journal of Public Administration Research and Theory, 23(1), 1–25.
26.
Macías RojasP. (2016). From deportation to prison: The politics of immigration enforcement in the post-civil rights America. New York University Press.
27.
MagañaL. (2013). Arizona’s immigration policies and SB 1070. In MagañaL.LeeE. (Eds.), Latino politics and Arizona’s Immigration Law SB 1070. Immigrants and minorities, politics and policy (pp. 19–26). Springer.
28.
MaggioC. (2021). State-level immigration legislation and social life: The impact of the “show me your papers” laws. Social Science Quarterly, 102(4), 1654–1685.
29.
MasseyD. S.PrenK. A. (2012). Unintended consequences of U.S. immigration policy: Explaining the post-1965 surge from Latin America. Population and Development Review, 38(1), 1–29.
30.
McLarenL. M. (2003). Anti-immigrant prejudice in Europe: Contact, threat perception, and preferences for the exclusion of migrants. Social Forces, 81(3), 909–936.
31.
MeierK. J.WrinkleR. D.PolinardJ. L. (1999). Representative bureaucracy and distributional equity: Addressing the hard question. The Journal of Politics, 61(4), 1025–1039.
32.
NewtonL.AdamsB. E. (2009). State immigration policies: Innovation, cooperation or conflict? Publius: The Journal of Federalism, 39(3), 408–431.
33.
NguyenM. T.GillH. (2016). Interior immigration enforcement: The impacts of expanding local law enforcement authority. Urban Studies, 53(2), 302–323.
34.
Nicholson-CrottyS.Nicholson-CrottyJ.FernandezS. (2017). Will more black cops matter? Officer race and police-involved homicides of black citizens. Public Administration Review, 77(2), 206–216.
35.
O’BrienB. G.CollingwoodL.El-KhatibS. O. (2019). The politics of refuge: Sanctuary cities, crime, and undocumented immigration. Urban Affairs Review, 55(1), 3–40.
36.
PolaviejaJ. G. (2016). Labour-market competition, recession and anti-immigrant sentiments in Europe: Occupational and environmental drivers of competitive threat. Socio-Economic Review, 14(3), 395–417.
37.
ProvineD. M.VarasanyiM. W.LewisP. G.DeckerS. H. (2016). Policing immigrants: Local law enforcement on the front lines. University of Chicago Press.
38.
PyoS. (2023). Does an increased share of black police officers decrease racial discrimination in law enforcement? Urban Affairs Review, 59(2), 534–579.
39.
SaadiA.De Trinidad YoungM. E.PatlerC.EstradaJ. L.VentersH. (2020). Understanding US immigration detention: Reaffirming rights and addressing social-structural determinants of health. Health and Human Rights, 22(1), 187–197.
40.
SandersonM. R.SemyonovM.GorodzeiskyA. (2021). Declining and splitting: Opposition to immigration in the United States, 1996–2018. International Journal of Intercultural Relations, 80, 27–39.
41.
SchroederJ.Van RiperD.MansonS.KnowlesK.KuglerT.RobertsF.RugglesS. (2025). IPUMS national historical geographic information system: Version 20.0 [dataset]. IPUMS.
42.
SimmonsW. P.MenjívarC.ValdezE. S. (2021). The gendered effects of local immigration enforcement: Latinas’ social isolation in Chicago, Houston, Los Angeles, and Phoenix. International Migration Review, 55(1), 108–134.
43.
SowaJ. E.SeldenS. C. (2003). Administrative discretion and active representation: An expansion of the theory of representative bureaucracy. Public Administration Review, 63(6), 700–710.
44.
SpiroP. J. (1997). Learning to live with immigration federalism. Connecticut Law Review, 29, 1627–1646.
45.
StumpfJ. P. (2006). The crimmigration crisis: Immigrants, crime, and sovereignty power. American University Law Review, 56(2), 367–419.
46.
StumpfJ. P. (2023). Crimmigration and the legitimacy of immigration law. Arizona Law Review, 65, 113.
47.
VarsanyiM. W.LewisP. G.ProvineD. M.DeckerS. (2012). A multilayered jurisdictional patchwork: Immigration federalism in the United States. Law & Policy, 34, 138–158.
48.
WeilP. (2000). Races at the gate: A century of racial distinctions in American immigration policy (1865-1965). Georgetown Immigration Law Journal, 15, 625.
49.
WilliamsL. M. (2015). Beyond enforcement: Welcomeness, local law enforcement, and immigrants. Public Administration Review, 75, 433–442.
50.
WilliamsR. M.Jr. (1947). The reduction of intergroup tensions. Social Science Research Council.
51.
WongT. K. (2012). 287(g) and the politics of interior immigration control in the United States: Explaining local cooperation with federal immigration authorities. Journal of Ethnic and Migration Studies, 38(5), 737–756.
52.
WongT. K.KangS. D.ValdiviaC.EspinoJ.GonzalezM.PeraltaE. (2021). How interior immigration enforcement affects trust in law enforcement. Perspectives on Politics, 19(2), 357–370.
