Johnson City, Tennessee

Johnson City, Tennessee, in Washington County, has ZIP codes 37601, 37602, 37604, 37605, 37614 and 37615 and area code 423, with 729 as an overlay.

ZIP codes: 37601, 37602, 37604, 37605 …
Area codes: 423, 729
County: Washington County
State: Tennessee
Coordinates: 36.2981, -82.4369

ZIP codes in Johnson City

ZIP code	Post office	County	Area codes
37601	Johnson City	Washington County	423, 729
37602^*	Johnson City	Washington County	423, 729
37604	Johnson City	Washington County	423, 729
37605^*	Johnson City	Washington County	423, 729
37614	Johnson City	Washington County	423, 729
37615	Johnson City	Washington County	423, 729

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for Johnson City

Area code 423
In service since September 11, 1995. Shares its area with 729. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Area code 729
In service since September 5, 2025. Shares its area with 423. 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.

Towns near Johnson City

Jonesborough4.8 km (3.0 mi)
Mountain Home5.9 km (3.7 mi)
Johnson7 km (4.3 mi)
Telford10.7 km (6.6 mi)
Pine Crest11.5 km (7.1 mi)
Milligan College11.8 km (7.3 mi)
Central13.2 km (8.2 mi)
Embreeville13.6 km (8.5 mi)

Local numbers in area code 423

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