Mount Juliet Tennessee ZIP Codes

Mount Juliet holds 2 ZIP codes, all inside one county and one postal prefix.

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Mount Juliet codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Mount Juliet. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

Every Mount Juliet ZIP code begins 371. Those first three digits identify the sectional center facility that processes mail for this part of Tennessee. Statewide that range covers 57 ZIP codes, so Mount Juliet accounts for 4% of it.

Every Tennessee ZIP prefix and the region it covers →

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Mount Juliet occupies.

• 615 Area code 615
• 629 Area code 629

Mount Juliet Tennessee area codes in full →

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.