37122 ZIP Code, Mount Juliet, TN

37122 is a ZIP code in Mount Juliet, Tennessee — mostly in Wilson County (91% of its land), with smaller parts in Rutherford County. It covers 112 square miles of land. The closest ZIP codes are 37076, 37138 and 37214. 68,492 people live here in 24,785 households, which puts it among the most populous 1% of Tennessee ZIP codes. With about 614 people per square mile it is lightly settled, and most homes are owner-occupied (80%). Median household income is $112,967, well above the Tennessee median of $69,595; 41% of households have children under 18.

Quick facts

Key figures

MeasureValue
Residents68,492
Households24,785
Median household income$112,967
Income per person$54,835
Median age40.4
Homeowners79.6%
Median home value$486,500
Median rent$1,993
Bachelor's degree or higher47.5%
Average commute (minutes)31.6
Households with kids under 1840.5%
Moved in the past year11.7%
Below the poverty line4.5%
Broadband internet95.0%
Speak a non-English language at home9.9%

Household income

% of householdsValue
<$10K3.2%
$10–15K0.6%
$15–25K2.3%
$25–35K4.8%
$35–50K6.4%
$50–75K12.9%
$75–100K13.6%
$100–150K22.6%
$150–200K14.0%
$200K+19.7%

Age

% of all residentsValue
<1012.0%
10–1914.7%
20–245.7%
25–349.7%
35–4415.9%
45–5415.0%
55–6412.0%
65–749.9%
75+5.0%

Tenure

% of housing unitsValue
Owned, with mortgage53.4%
Owned outright21.3%
Rented18.7%
Vacant6.6%

Type of building

% of housing unitsValue
Detached house81.6%
Townhome4.5%
2–4 units0.6%
5–19 units5.3%
20+ units5.3%
Mobile / other2.8%

Businesses in 37122

1,399 business establishments with 21,779 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

37122 has 43 USPS carrier routes with 29,585 residential and 1,372 business mailboxes. Open the EDDM route map.

Carrier routes in 37122

37122 has 43 USPS carrier routes (43 rural (R)) with 29,585 residential and 1,372 business mailboxes. Routes range from 114 homes (R035) to 1,229 homes (R031); the median route has 673 homes. The Census counted 24,785 households in 37122 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4993
500–74926
750–99910
1,000–1,4993
1,500+0

Best routes in 37122 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route R033 — USPS business mailboxes 342, 573 homes
  2. Route R015 — USPS business mailboxes 332, 258 homes
  3. Route R021 — USPS business mailboxes 173, 454 homes
  4. Route R022 — USPS business mailboxes 70, 602 homes
  5. Route R024 — USPS business mailboxes 68, 448 homes

Select these 5 routes on the route map

Every carrier route in 37122

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R001Rural6064$98,998———
R002Rural6188$88,176———
R003Rural63020$89,241———
R004Rural6100$112,955———
R005Rural5814$155,938———
R006Rural6783$140,375———
R007Rural6565$151,938———
R008Rural88733$80,725———
R009Rural6372$108,218———
R010Rural8191$108,218———
R011Rural6500$130,456———
R012Rural7021$132,981———
R013Rural79414$91,790———
R014Rural5931$92,644———
R015Rural258332$60,122———
R016Rural61617$146,334———
R017Rural7660$110,431———
R018Rural6730$130,002———
R019Rural6114$89,241———
R020Rural6493$109,571———
R021Rural454173$78,208———
R022Rural60270$109,049———
R023Rural6961$74,378———
R024Rural44868$60,122———
R025Rural7620$106,858———
R026Rural7341$109,049———
R027Rural6170$88,176———
R028Rural77811$109,049———
R029Rural58520$132,981———
R030Rural7010$146,334———
R031Rural1,2294$109,049———
R032Rural7203$91,790———
R033Rural573342$90,519———
R034Rural76524$106,858———
R035Rural11424$88,176———
R036Rural72011$108,218———
R037Rural67721$88,176———
R038Rural85913$114,236———
R039Rural90715$109,049———
R040Rural1,03112$133,414———
R041Rural86232$111,616———
R042Rural1,15611$105,120———
R043Rural56164$60,122———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 37122 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 37122

Where it ranks

Mail every home in 37122

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 37122, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 37122 in?
37122 is a Mount Juliet, TN mailing address. By land area, 22% lies inside Mount Juliet, 4% lies inside Gladeville, 2% lies inside Rural Hill and 2% lies inside Lebanon; the rest is outside any Census-defined city or community.
What county is 37122 in?
37122 is mostly in Wilson County (91% of its land), with smaller parts in Rutherford County.
What is the population of 37122?
About 68,492 people (±1,673), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 64,018.
What is the median household income in 37122?
$112,967 (±$8,933), compared with $69,595 for Tennessee as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 37122?
43 USPS carrier routes with 29,585 residential and 1,372 business mailboxes (30,957 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 37122?
The closest, measured center to center: 37076 (5.5 mi, Nashville-Davidson metropolitan government (balance), TN), 37138 (7.9 mi, Nashville-Davidson metropolitan government (balance), TN), 37214 (9.8 mi, Nashville-Davidson metropolitan government (balance), TN), 37217 (10.6 mi, Nashville-Davidson metropolitan government (balance), TN), 37090 (11.4 mi, Lebanon) and 37086 (11.5 mi, La Vergne).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.