- The Mamaroneck and Larchmont public libraries are both closed on Christmas Eve and Christmas Day.
- Mamaroneck Town Hall is open until noon on Christmas Eve and closed on Christmas Day.
- Village offices in both Larchmont and Mamaroneck are closed on Christmas Eve and Christmas Day.
- The Mamaroneck and Larchmont post offices will be open on Christmas Eve and closed on Christmas Day.
- The Police Department and Ambulance Corps will be in service all the time, both days.
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