In observance of the Martin Luther King Day of Service, here is what's open and closed today, Jan. 21: 

South Whitehall Township municipal offices are open. 

Parkland Community Library is open.

Schools: St. Joseph the Worker and Parkland schools are closed today. 

Lehigh County Courthouse is closed. 

District Judge Jacob Hammond's office is closed.

State offices are closed, including PennDOT driver's license and photo centers.

Federal offices are closed. 

Retail: Most retail and entertainment establishments are open today.

Pennsylvania Liquor stores are closed.

Banks: Most are closed.