What city is 37048 in?

37048 is a Cottontown, TN mailing address. By land area, 10% lies inside Walnut Grove, 3% lies inside Cottontown and 1% lies inside New Deal; the rest is outside any Census-defined city or community.

What is the population of 37048?

About 6,380 people (±715), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 6,927.

What is the median household income in 37048?

$100,446 (±$13,174), 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 37048?

5 USPS carrier routes with 2,740 residential and 22 business mailboxes (2,763 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 37048?

The closest, measured center to center: 37188 (5 mi, White House), 37049 (7.1 mi, Cross Plains), 37148 (7.9 mi, Portland), 37066 (9.8 mi, Gallatin), 37075 (10.4 mi, Hendersonville) and 37141 (10.5 mi, Orlinda).

37048 ZIP Code, Cottontown, TN

37048 is a ZIP code in Cottontown, Tennessee in Sumner County. It covers 46 square miles of land. The closest ZIP codes are 37188, 37049 and 37148. 6,380 people live here in 2,404 households. With about 137 people per square mile it is lightly settled, and most homes are owner-occupied (88%). Median household income is $100,446, above the Tennessee median of $69,595.

Quick facts

Mailing city: Cottontown, TN
County: Sumner County
Land area: 46 sq mi
Population: 6,380
Median household income: $100,446
Carrier routes: 5 (2,740 homes)

Key figures

Measure	Value
Residents	6,380
Households	2,404
Median household income	$100,446
Income per person	$52,799
Median age	43.2
Homeowners	88.1%
Median home value	$434,400
Median rent	$1,148
Bachelor's degree or higher	29.0%
Average commute (minutes)	31.5
Households with kids under 18	38.5%
Moved in the past year	12.3%
Below the poverty line	5.2%
Broadband internet	91.0%
Speak a non-English language at home	1.9%

Household income

% of households	Value
<$10K	1.9%
$10–15K	0.8%
$15–25K	4.5%
$25–35K	2.4%
$35–50K	7.2%
$50–75K	16.3%
$75–100K	16.7%
$100–150K	22.2%
$150–200K	10.4%
$200K+	17.6%

Age

% of all residents	Value
<10	12.0%
10–19	14.1%
20–24	2.8%
25–34	8.4%
35–44	14.7%
45–54	16.9%
55–64	15.2%
65–74	10.6%
75+	5.2%

Tenure

% of housing units	Value
Owned, with mortgage	53.2%
Owned outright	31.4%
Rented	11.1%
Vacant	4.2%

Type of building

% of housing units	Value
Detached house	93.1%
Townhome	0.6%
2–4 units	0.0%
5–19 units	0.0%
20+ units	0.0%
Mobile / other	6.3%

Businesses in 37048

63 business establishments with 207 employees (ZIP Codes Business Patterns 2023).

Construction: 22
Other Services (except Public Administration): 11
Administrative and Support and Waste Management and Remediation Services: 7
Professional, Scientific, and Technical Services: 5
Manufacturing: 4
Retail Trade: 4
Finance and Insurance: 3

EDDM carrier routes

37048 has 5 USPS carrier routes with 2,740 residential and 22 business mailboxes. Open the EDDM route map.

Carrier routes in 37048

37048 has 5 USPS carrier routes (5 rural (R)) with 2,740 residential and 22 business mailboxes. Routes range from 396 homes (R030) to 623 homes (R020); the median route has 571 homes. The Census counted 2,404 households in 37048 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	1
500–749	4
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 37048 for…

Most businesses

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

Route R022 — USPS business mailboxes 14, 571 homes
Route R023 — USPS business mailboxes 3, 529 homes
Route R021 — USPS business mailboxes 2, 621 homes
Route R030 — USPS business mailboxes 2, 396 homes
Route R020 — USPS business mailboxes 1, 623 homes

Select these 5 routes on the route map

Every carrier route in 37048

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R020	Rural	623	1	$100,665	—	—	—
R021	Rural	621	2	$87,694	—	—	—
R022	Rural	571	14	$120,869	—	—	—
R023	Rural	529	3	$88,938	—	—	—
R030	Rural	396	2	$103,871	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 37048 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

37188 — White House city, TN (5 mi)
37049 — Cross Plains city, TN (7.1 mi)
37148 — Portland city, TN (7.9 mi)
37066 — Gallatin city, TN (9.8 mi)
37075 — Hendersonville city, TN (10.4 mi)
37141 — Orlinda city, TN (10.5 mi)
37072 — Nashville-Davidson metropolitan government (balance), TN (12.9 mi)
37073 — Greenbrier town, TN (13.2 mi)

Areas that include 37048

Where it ranks

Mail every home in 37048

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) 37048, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 37048 in?: 37048 is a Cottontown, TN mailing address. By land area, 10% lies inside Walnut Grove, 3% lies inside Cottontown and 1% lies inside New Deal; the rest is outside any Census-defined city or community.
What county is 37048 in?: 37048 is in Sumner County.
What is the population of 37048?: About 6,380 people (±715), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 6,927.
What is the median household income in 37048?: $100,446 (±$13,174), 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 37048?: 5 USPS carrier routes with 2,740 residential and 22 business mailboxes (2,763 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 37048?: The closest, measured center to center: 37188 (5 mi, White House), 37049 (7.1 mi, Cross Plains), 37148 (7.9 mi, Portland), 37066 (9.8 mi, Gallatin), 37075 (10.4 mi, Hendersonville) and 37141 (10.5 mi, Orlinda).

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