Allendale, New Jersey

ZIP codes in Allendale

Area codes for Allendale

• Area code 201

  In service since 1947. Shares its area with 551. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 551

  In service since December 29, 2001. Shares its area with 201. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Allendale is in the Eastern Time zone.

Towns near Allendale

• Waldwick2.3 km (1.4 mi)
• Ramsey2.9 km (1.8 mi)
• Saddle River3.3 km (2.1 mi)
• Midland Park4.2 km (2.6 mi)
• Upper Saddle River4.4 km (2.7 mi)
• Ho Ho Kus4.5 km (2.8 mi)
• Wyckoff4.7 km (2.9 mi)
• Ridgewood6 km (3.7 mi)