37774 ZIP Code, Loudon, TN

37774 is a ZIP code in Loudon, Tennessee — mostly in Loudon County (86% of its land), with smaller parts in Roane and Monroe counties. It covers 88 square miles of land. The closest ZIP codes are 37846, 37771 and 37772. 21,784 people live here in 9,426 households. With about 247 people per square mile it is lightly settled, and most homes are owner-occupied (85%). Median household income is $87,718, above the Tennessee median of $69,595; the median age is 58.0, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents21,784
Households9,426
Median household income$87,718
Income per person$47,411
Median age58
Homeowners84.6%
Median home value$365,100
Median rent$1,006
Bachelor's degree or higher33.0%
Average commute (minutes)24.1
Households with kids under 1817.2%
Moved in the past year7.9%
Below the poverty line11.1%
Broadband internet90.7%
Speak a non-English language at home9.0%

Household income

% of householdsValue
<$10K2.8%
$10–15K2.3%
$15–25K3.7%
$25–35K4.2%
$35–50K13.9%
$50–75K13.1%
$75–100K17.8%
$100–150K24.7%
$150–200K5.0%
$200K+12.5%

Age

% of all residentsValue
<108.2%
10–199.0%
20–243.6%
25–348.6%
35–447.4%
45–548.1%
55–6418.0%
65–7421.1%
75+16.2%

Tenure

% of housing unitsValue
Owned, with mortgage43.1%
Owned outright35.4%
Rented14.1%
Vacant7.4%

Type of building

% of housing unitsValue
Detached house82.5%
Townhome3.4%
2–4 units2.4%
5–19 units1.8%
20+ units1.7%
Mobile / other8.2%

Businesses in 37774

353 business establishments with 6,595 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

37774 has 20 USPS carrier routes with 11,961 residential and 464 business mailboxes. Open the EDDM route map.

Carrier routes in 37774

37774 has 20 USPS carrier routes (2 city (C), 18 rural (R)) with 11,961 residential and 464 business mailboxes. Routes range from 505 homes (R012) to 836 homes (R017); the median route has 579 homes. The Census counted 9,426 households in 37774 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4990
500–74919
750–9991
1,000–1,4990
1,500+0

Best routes in 37774 for…

Most businesses

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

  1. Route C001 — USPS business mailboxes 133, 668 homes
  2. Route C002 — USPS business mailboxes 64, 531 homes
  3. Route R009 — USPS business mailboxes 52, 693 homes
  4. Route R020 — USPS business mailboxes 50, 625 homes
  5. Route R005 — USPS business mailboxes 35, 552 homes

Select these 5 routes on the route map

Every carrier route in 37774

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City668133$85,857———
C002City53164$85,857———
R001Rural56811$92,696———
R002Rural64824$86,296———
R003Rural5683$81,865———
R004Rural6545$80,675———
R005Rural55235$78,231———
R006Rural5780$112,444———
R007Rural54235$80,675———
R008Rural5301$113,639———
R009Rural69352$72,729———
R010Rural6060$78,231———
R011Rural5200$86,296———
R012Rural5051$113,639———
R014Rural60921$72,729———
R016Rural5792$112,444———
R017Rural83616$112,444———
R018Rural5866$33,440———
R019Rural5635$65,409———
R020Rural62550$80,675———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 37774 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 37774

Where it ranks

Mail every home in 37774

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) 37774, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 37774 in?
37774 is a Loudon, TN mailing address. By land area, 14% lies inside Loudon and 8% lies inside Tellico Village; the rest is outside any Census-defined city or community.
What county is 37774 in?
37774 is mostly in Loudon County (86% of its land), with smaller parts in Roane and Monroe counties.
What is the population of 37774?
About 21,784 people (±1,214), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 20,678.
What is the median household income in 37774?
$87,718 (±$6,825), 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 37774?
20 USPS carrier routes with 11,961 residential and 464 business mailboxes (12,425 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 37774?
The closest, measured center to center: 37846 (7.7 mi, Philadelphia), 37771 (7.9 mi, Lenoir City), 37772 (9.4 mi, Lenoir City), 37763 (9.7 mi, Kingston), 37874 (10.6 mi, Sweetwater) and 37742 (10.7 mi, Greenback).

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