ZIP Code 37121

37121 is one of Tennessee's ZIP codes, delivering to addresses in Mount Juliet, Wilson County.

City: Mount Juliet
County: Wilson County
State: Tennessee
Prefix: 371xx

Where this code sits

37121 is part of the 371xx range, the group of codes handled by one mail processing centre. Mount Juliet is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Mount Juliet page.

Mount Juliet Tennessee ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37121 delivers to without sharing its boundary.

ZIP codes nearest 37121

The ZIP codes whose reference points sit closest to 37121.
ZIP code	Distance	Delivers to
ZIP code 37122	1.2 mi	Mount Juliet, TN
ZIP code 37076	4.7 mi	Hermitage, TN
ZIP code 37138	5.9 mi	Old Hickory, TN
ZIP code 37214	8.3 mi	Nashville, TN
ZIP code 37075	8.8 mi	Hendersonville, TN
ZIP code 37077	9.2 mi	Hendersonville, TN
ZIP code 37217	10 mi	Nashville, TN
ZIP code 37115	11 mi	Madison, TN

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

Each point is the reference point for 37121, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 37121. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.