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Mount Juliet, TN ZIP codes

Mount Juliet (also written Mt. Juliet), Tennessee has 2 ZIP codes, including 1 PO Box ZIP. They are in Wilson County.

Population in these ZIPs
68,492
Avg. median income
$113,000population-weighted
Typical home value
$565,800population-weighted
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ZIP codes within 10 miles

Mount Juliet, TN ZIP codes list

Mount Juliet, TN ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
37121 PO BoxWilson County———
37122Wilson County68,492$112,967$565,800

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Mount Juliet

Frequently asked questions

What is the ZIP code for Mount Juliet, TN?

Mount Juliet, TN has 2 ZIP codes: 37121 and 37122.

What county is Mount Juliet, Tennessee in?

Mount Juliet ZIP codes are in Wilson County.

Which Mount Juliet ZIP codes are PO Boxes?

37121 is a PO Box or single-organization ZIP code; it has no residential delivery area.