What city is 37923 in?

37923 is a Knoxville, TN mailing address. By land area, 25% lies inside Knoxville; the rest is outside any Census-defined city or community.

What is the population of 37923?

About 30,131 people (±2,138), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,705.

What is the median household income in 37923?

$73,699 (±$3,889), 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 37923?

22 USPS carrier routes with 14,471 residential and 915 business mailboxes (15,386 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 37923?

The closest, measured center to center: 37909 (3.5 mi, Knoxville), 37931 (4.2 mi, Karns), 37919 (4.6 mi, Knoxville), 37922 (4.8 mi, Knoxville), 37921 (5.6 mi, Knoxville) and 37932 (6.6 mi, Farragut).

37923 ZIP Code, Knoxville, TN

37923 is a ZIP code in Knoxville, Tennessee in Knox County. It covers 11 square miles of land. The closest ZIP codes are 37909, 37931 and 37919. 30,131 people live here in 12,990 households. At about 2,717 people per square mile it has suburban density, and owners and renters are mixed (60% own). Median household income is $73,699, close to the Tennessee median of $69,595.

Quick facts

Mailing city: Knoxville, TN
County: Knox County
Land area: 11 sq mi
Population: 30,131
Median household income: $73,699
Carrier routes: 22 (14,471 homes)

Key figures

Measure	Value
Residents	30,131
Households	12,990
Median household income	$73,699
Income per person	$40,649
Median age	36.6
Homeowners	59.7%
Median home value	$333,000
Median rent	$1,371
Bachelor's degree or higher	46.7%
Average commute (minutes)	20.5
Households with kids under 18	26.0%
Moved in the past year	14.7%
Below the poverty line	10.5%
Broadband internet	91.7%
Speak a non-English language at home	14.9%

Household income

% of households	Value
<$10K	4.2%
$10–15K	1.6%
$15–25K	4.5%
$25–35K	8.5%
$35–50K	10.8%
$50–75K	21.6%
$75–100K	14.9%
$100–150K	17.7%
$150–200K	9.7%
$200K+	6.5%

Age

% of all residents	Value
<10	11.7%
10–19	10.9%
20–24	7.5%
25–34	17.7%
35–44	14.5%
45–54	11.4%
55–64	11.1%
65–74	8.3%
75+	6.8%

Tenure

% of housing units	Value
Owned, with mortgage	34.6%
Owned outright	20.4%
Rented	36.8%
Vacant	8.2%

Type of building

% of housing units	Value
Detached house	49.8%
Townhome	9.2%
2–4 units	8.6%
5–19 units	20.4%
20+ units	9.2%
Mobile / other	2.8%

Businesses in 37923

897 business establishments with 16,570 employees (ZIP Codes Business Patterns 2023).

Health Care and Social Assistance: 159
Professional, Scientific, and Technical Services: 115
Retail Trade: 91
Accommodation and Food Services: 84
Finance and Insurance: 80
Other Services (except Public Administration): 70
Administrative and Support and Waste Management and Remediation Services: 67
Real Estate and Rental and Leasing: 61

EDDM carrier routes

37923 has 22 USPS carrier routes with 14,471 residential and 915 business mailboxes. Open the EDDM route map.

Carrier routes in 37923

37923 has 22 USPS carrier routes (18 city (C), 4 rural (R)) with 14,471 residential and 915 business mailboxes. Routes range from 65 homes (C063) to 1,097 homes (C018); the median route has 662 homes. The Census counted 12,990 households in 37923 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	3
500–749	11
750–999	5
1,000–1,499	2
1,500+	0

Best routes in 37923 for…

Most businesses

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

Route C063 — USPS business mailboxes 285, 65 homes
Route C017 — USPS business mailboxes 216, 523 homes
Route C028 — USPS business mailboxes 135, 684 homes
Route C026 — USPS business mailboxes 80, 869 homes
Route C095 — USPS business mailboxes 57, 828 homes

Select these 5 routes on the route map

Every carrier route in 37923

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C003	City	1,021	2	$45,605	—	—	—
C006	City	676	1	$111,745	—	—	—
C016	City	400	0	$79,507	—	—	—
C017	City	523	216	$98,852	—	—	—
C018	City	1,097	7	$98,852	—	—	—
C020	City	487	0	$143,524	—	—	—
C022	City	971	5	$59,013	—	—	—
C023	City	509	20	$55,718	—	—	—
C024	City	653	24	$61,347	—	—	—
C026	City	869	80	$32,990	—	—	—
C028	City	684	135	$98,852	—	—	—
C063	City	65	285	$86,109	—	—	—
C064	City	781	3	$75,069	—	—	—
C084	City	616	2	$55,718	—	—	—
C090	City	620	26	$80,269	—	—	—
C091	City	844	11	$117,121	—	—	—
C092	City	671	2	$80,269	—	—	—
C095	City	828	57	$45,605	—	—	—
R021	Rural	596	23	$110,894	—	—	—
R061	Rural	681	13	$98,852	—	—	—
R079	Rural	555	1	$98,852	—	—	—
R161	Rural	324	2	$110,894	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 37923 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

37909 — Knoxville city, TN (3.5 mi)
37931 — Karns CDP, TN (4.2 mi)
37919 — Knoxville city, TN (4.6 mi)
37922 — Knoxville city, TN (4.8 mi)
37921 — Knoxville city, TN (5.6 mi)
37932 — Farragut town, TN (6.6 mi)
37934 — Farragut town, TN (6.6 mi)
37777 — Louisville city, TN (7.4 mi)

Areas that include 37923

Where it ranks

Mail every home in 37923

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) 37923, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 37923 in?: 37923 is a Knoxville, TN mailing address. By land area, 25% lies inside Knoxville; the rest is outside any Census-defined city or community.
What county is 37923 in?: 37923 is in Knox County.
What is the population of 37923?: About 30,131 people (±2,138), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,705.
What is the median household income in 37923?: $73,699 (±$3,889), 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 37923?: 22 USPS carrier routes with 14,471 residential and 915 business mailboxes (15,386 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 37923?: The closest, measured center to center: 37909 (3.5 mi, Knoxville), 37931 (4.2 mi, Karns), 37919 (4.6 mi, Knoxville), 37922 (4.8 mi, Knoxville), 37921 (5.6 mi, Knoxville) and 37932 (6.6 mi, Farragut).

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