The neighborhood is the main geographical unit of analysis for the study of social mechanisms impacting on crime and disorder. An important neighborhood social mechanism is collective efficacy, the combination of trust and shared expectations of social control, but whether trust and shared expectations actually take place at the neighborhood level is rarely studied. In a case study of four Swedish neighborhoods intra-neighborhood differences in collective efficacy is discussed in relation to spatial distribution of disorder. Social capital, including trust and shared expectations of social control (collective efficacy), have been examined through semi-structured focus group- and key informant interviews and a survey where the geographical units of analysis average below 200 residents. Physical disorder have been mapped through a systematic social observation (SSO) employing gps-coordinates to all observations and analyzed through geographic information systems employing density- and hotspot based methods. Findings show large intra-neighborhood differences in both collective efficacy and disorder suggesting that collective efficacy on the neighborhood level is best understood as an aggregate of smaller geographical units of analysis, micro-neighborhoods.