What city is 37330 in?

37330 is a Estill Springs, TN mailing address. By land area, 10% lies inside Estill Springs; the rest is outside any Census-defined city or community.

What is the population of 37330?

About 7,204 people (±873), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 7,026.

What is the median household income in 37330?

$70,952 (±$6,285), 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 37330?

6 USPS carrier routes with 3,217 residential and 45 business mailboxes (3,269 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 37330?

The closest, measured center to center: 37388 (6.3 mi, Lynchburg, Moore County metropolitan government, TN), 37398 (6.8 mi, Winchester), 37324 (8.5 mi, Decherd), 37318 (11 mi, Cowan), 37352 (12.5 mi, Lynchburg, Moore County metropolitan government, TN) and 37342 (12.6 mi, Hillsboro).

37330 ZIP Code, Estill Springs, TN

Q: What county is 37330 in?

37330 is mostly in Franklin County (91% of its land), with smaller parts in Coffee County.

37330 is a ZIP code in Estill Springs, Tennessee — mostly in Franklin County (91% of its land), with smaller parts in Coffee County. It covers 39 square miles of land. The closest ZIP codes are 37388, 37398 and 37324. 7,204 people live here in 2,838 households. With about 185 people per square mile it is lightly settled, and most homes are owner-occupied (90%). Median household income is $70,952, close to the Tennessee median of $69,595; the median age is 46.4, older than most ZIP codes.

Quick facts

Mailing city: Estill Springs, TN
County: Franklin County
Land area: 39 sq mi
Population: 7,204
Median household income: $70,952
Carrier routes: 6 (3,217 homes)

Key figures

Measure	Value
Residents	7,204
Households	2,838
Median household income	$70,952
Income per person	$35,850
Median age	46.4
Homeowners	89.5%
Median home value	$213,500
Median rent	$909
Bachelor's degree or higher	19.3%
Average commute (minutes)	27
Households with kids under 18	29.1%
Moved in the past year	8.8%
Below the poverty line	11.6%
Broadband internet	83.9%
Speak a non-English language at home	1.1%

Household income

% of households	Value
<$10K	3.9%
$10–15K	1.2%
$15–25K	5.7%
$25–35K	14.1%
$35–50K	9.1%
$50–75K	22.8%
$75–100K	14.4%
$100–150K	16.2%
$150–200K	6.8%
$200K+	5.8%

Age

% of all residents	Value
<10	12.7%
10–19	8.4%
20–24	5.1%
25–34	15.5%
35–44	6.7%
45–54	13.4%
55–64	19.0%
65–74	12.3%
75+	7.1%

Tenure

% of housing units	Value
Owned, with mortgage	46.3%
Owned outright	32.8%
Rented	9.1%
Vacant	11.8%

Type of building

% of housing units	Value
Detached house	77.8%
Townhome	2.4%
2–4 units	1.0%
5–19 units	0.4%
20+ units	0.0%
Mobile / other	18.3%

Businesses in 37330

64 business establishments with 417 employees (ZIP Codes Business Patterns 2023).

Other Services (except Public Administration): 11
Construction: 10
Retail Trade: 10
Manufacturing: 7
Administrative and Support and Waste Management and Remediation Services: 7
Health Care and Social Assistance: 5
Professional, Scientific, and Technical Services: 4
Accommodation and Food Services: 3

EDDM carrier routes

37330 has 6 USPS carrier routes with 3,217 residential and 45 business mailboxes. Open the EDDM route map.

Carrier routes in 37330

37330 has 6 USPS carrier routes (6 rural (R)) with 3,217 residential and 45 business mailboxes. Routes range from 248 homes (R006) to 629 homes (R003); the median route has 593 homes. The Census counted 2,838 households in 37330 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	0
500–749	5
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 37330 for…

Most businesses

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

Route R004 — USPS business mailboxes 18, 534 homes
Route R003 — USPS business mailboxes 11, 629 homes
Route R006 — USPS business mailboxes 7, 248 homes
Route R002 — USPS business mailboxes 4, 620 homes
Route R001 — USPS business mailboxes 4, 615 homes

Select these 5 routes on the route map

Every carrier route in 37330

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R001	Rural	615	4	$77,557	—	—	—
R002	Rural	620	4	—	—	—	—
R003	Rural	629	11	$55,205	—	—	—
R004	Rural	534	18	$55,205	—	—	—
R005	Rural	571	1	$55,205	—	—	—
R006	Rural	248	7	$68,076	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 37330 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

37388 — Lynchburg, Moore County metropolitan government, TN (6.3 mi)
37398 — Winchester city, TN (6.8 mi)
37324 — Decherd city, TN (8.5 mi)
37318 — Cowan city, TN (11 mi)
37352 — Lynchburg, Moore County metropolitan government, TN (12.5 mi)
37342 — Hillsboro CDP, TN (12.6 mi)
37360 — Tullahoma city, TN (12.9 mi)
37306 — Lynchburg, Moore County metropolitan government, TN (13.1 mi)

Areas that include 37330

Estill Springs, TN ZIP codes — 2 ZIP codes
Franklin County ZIP codes — 10 ZIP codes
Tennessee ZIP code data

Where it ranks

Mail every home in 37330

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) 37330, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 37330 in?: 37330 is a Estill Springs, TN mailing address. By land area, 10% lies inside Estill Springs; the rest is outside any Census-defined city or community.
What county is 37330 in?: 37330 is mostly in Franklin County (91% of its land), with smaller parts in Coffee County.
What is the population of 37330?: About 7,204 people (±873), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 7,026.
What is the median household income in 37330?: $70,952 (±$6,285), 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 37330?: 6 USPS carrier routes with 3,217 residential and 45 business mailboxes (3,269 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 37330?: The closest, measured center to center: 37388 (6.3 mi, Lynchburg, Moore County metropolitan government, TN), 37398 (6.8 mi, Winchester), 37324 (8.5 mi, Decherd), 37318 (11 mi, Cowan), 37352 (12.5 mi, Lynchburg, Moore County metropolitan government, TN) and 37342 (12.6 mi, Hillsboro).

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