Abstract Does an MP's localness affect their behaviour towards constituents? Existing research has shown biases in MPs' responsiveness to citizens based on citizens' sociodemographic and political traits and voters’ tendency to prefer ‘local’ MPs. Yet, we know little about whether MPs' localness affects their responsiveness to constituents. MPs' localness may influence their behaviour for strategic reasons and/or because of homophily. To explore this relationship, we conducted a field experiment in the United Kingdom where we asked legislators about their policy priorities regarding the COVID-19 pandemic. We found that local MPs do not differentiate in their responsiveness to constituents. However, non-local MPs are motivated by party affiliation and gender in their responsiveness to constituents, with ethnicity and class playing insignificant roles. Non-local MPs respond more to co-partisans than non-partisans and women non-local MPs are more responsive to women constituents. This experiment underscores the impact of (non-)localness on MPs' interactions with constituents.