As deportations from the United States rise to unprecedented levels, a nationwide immigration enforcement program (Secure Communities) identifies noncitizens under arrest in county jails. I directly measure how much local contexts differ from each other by observing how restrictively federal immigration law is enforced at the county level. Examining variation in deportation outcomes begins to address the paucity of clear measures to compare contexts of reception across sub-national settings. I define and analyze deportation discretion (i.e., number of noncitizens not deported out of the pool of noncitizens arrested and booked into local jails) to gain insights into county-level contexts of reception. Among noncitizens identified by Secure Communities, the protective effects of being in a county with Hispanic co-ethnics are highest where the Hispanic share is above the national average (but less than a majority of the county’s population) and where Hispanic immigrant segregation from non-Hispanic, US-born whites is either very low or very high. The Hispanic share of a county appears to have a protective effect even in Republican strongholds. The findings suggest Hispanic-dense counties (measured as the Hispanic share and the spatial distribution of Hispanic immigrants, respectively) possess the level of accumulated social capital and political clout to dull the aims of a pervasive deportation apparatus designed to expel record numbers of noncitizens.