Rock Ridge, Connecticut

Nearest ZIP codes to Rock Ridge

These are the ZIP codes nearest to Rock Ridge, each listed with the post office it is named after.

Area codes for Rock Ridge

• Area code 203

  In service since 1947. Shares its area with 475. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 475

  In service since December 12, 2009. Shares its area with 203. 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

Rock Ridge is in the Eastern Time zone.

Towns near Rock Ridge

• Greenwich1.2 km (0.7 mi)
• Glenville1.3 km (0.8 mi)
• Pemberwick1.9 km (1.2 mi)
• Byram3.7 km (2.3 mi)
• Indian Field3.8 km (2.4 mi)
• Cos Cob5 km (3.1 mi)
• Riverside5.7 km (3.5 mi)
• Old Greenwich6.8 km (4.2 mi)