37375 ZIP Code, Sewanee, TN

37375 is a ZIP code in Sewanee, Tennessee — mostly in Franklin County (68% of its land), with smaller parts in Marion County. It covers 69 square miles of land. The closest ZIP codes are 37383, 37318 and 37356. 3,866 people live here in 998 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (88%). Median household income is $71,204, close to the Tennessee median of $69,595; the median age is 22.9, younger than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents3,866
Households998
Median household income$71,204
Income per person$30,857
Median age22.9
Homeowners88.0%
Median home value$366,700
Median rent$1,234
Bachelor's degree or higher64.6%
Average commute (minutes)15.6
Households with kids under 1822.0%
Moved in the past year15.7%
Below the poverty line7.5%
Broadband internet93.7%
Speak a non-English language at home5.0%

Household income

% of householdsValue
<$10K5.2%
$10–15K0.8%
$15–25K4.1%
$25–35K8.5%
$35–50K12.7%
$50–75K21.4%
$75–100K7.2%
$100–150K12.5%
$150–200K9.5%
$200K+17.9%

Age

% of all residentsValue
<104.7%
10–1919.8%
20–2429.4%
25–344.0%
35–448.0%
45–544.2%
55–649.8%
65–7412.2%
75+7.9%

Tenure

% of housing unitsValue
Owned, with mortgage30.8%
Owned outright41.2%
Rented9.8%
Vacant18.1%

Type of building

% of housing unitsValue
Detached house85.0%
Townhome1.4%
2–4 units2.1%
5–19 units3.5%
20+ units0.0%
Mobile / other8.1%

Businesses in 37375

50 business establishments with 467 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

37375 has 3 USPS carrier routes with 1,236 residential and 19 business mailboxes. Open the EDDM route map.

Carrier routes in 37375

37375 has 3 USPS carrier routes (3 rural (R)) with 1,236 residential and 19 business mailboxes. Routes range from 215 homes (R004) to 570 homes (R001); the median route has 451 homes. The Census counted 998 households in 37375 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4991
500–7491
750–9990
1,000–1,4990
1,500+0

Best routes in 37375 for…

Most businesses

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

  1. Route R001 — USPS business mailboxes 9, 570 homes
  2. Route R004 — USPS business mailboxes 6, 215 homes
  3. Route R002 — USPS business mailboxes 4, 451 homes

Select these 3 routes on the route map

Every carrier route in 37375

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R001Rural5709$41,580———
R002Rural4514$73,983———
R004Rural2156$116,275———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 37375 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 37375

Where it ranks

Mail every home in 37375

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) 37375, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 37375 in?
37375 is a Sewanee, TN mailing address. By land area, 5% lies inside Sewanee and 3% lies inside Monteagle; the rest is outside any Census-defined city or community.
What county is 37375 in?
37375 is mostly in Franklin County (68% of its land), with smaller parts in Marion County.
What is the population of 37375?
About 3,866 people (±431), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 3,657.
What is the median household income in 37375?
$71,204 (±$16,797), 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 37375?
3 USPS carrier routes with 1,236 residential and 19 business mailboxes (1,255 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 37375?
The closest, measured center to center: 37383 (4.4 mi, Sewanee), 37318 (5.4 mi, Cowan), 37356 (6.6 mi, Monteagle), 37376 (8.1 mi, Sherwood), 37324 (8.2 mi, Decherd) and 37380 (9.4 mi, New Hope).

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