Union County Municipal Information

Union County ZIP Codes 

Click on the links below to find information on elected and appointed officials, contacts, and phone numbers for each municipality.

• Buffalo Township

• East Buffalo Township

• Gregg Township

• Hartleton Borough

• Hartley Township

• Kelly Township

• Lewis Township

• Lewisburg Borough

• Limestone Township

• Mifflinburg Borough

• New Berlin Borough

• Union Township

• West Buffalo Township

• White Deer Township

Click on the Links Below to View Census Information:

Historic Population Growth by Municipality (1950-1996)

Land Area, Housing Units and 1990 Population by Municipality

Income Data by Municipality (1990 U.S. Census Data)