37040 ZIP Code, Clarksville, TN

37040 is a ZIP code in Clarksville, Tennessee in Montgomery County. It covers 93 square miles of land. The closest ZIP codes are 37043, 37042 and 37171. 64,977 people live here in 24,705 households, which puts it among the most populous 1% of Tennessee ZIP codes. With about 700 people per square mile it is lightly settled, and owners and renters are mixed (58% own). Median household income is $67,745, close to the Tennessee median of $69,595; 21% of residents moved in during the past year.

Quick facts

Key figures

MeasureValue
Residents64,977
Households24,705
Median household income$67,745
Income per person$31,500
Median age31.4
Homeowners57.8%
Median home value$270,000
Median rent$1,266
Bachelor's degree or higher29.0%
Average commute (minutes)28.8
Households with kids under 1835.4%
Moved in the past year21.3%
Below the poverty line16.0%
Broadband internet93.3%
Speak a non-English language at home11.2%

Household income

% of householdsValue
<$10K8.2%
$10–15K2.8%
$15–25K6.9%
$25–35K6.8%
$35–50K11.4%
$50–75K20.5%
$75–100K13.1%
$100–150K19.8%
$150–200K5.8%
$200K+4.7%

Age

% of all residentsValue
<1016.1%
10–1913.3%
20–248.0%
25–3419.1%
35–4414.8%
45–5410.7%
55–648.9%
65–746.3%
75+2.8%

Tenure

% of housing unitsValue
Owned, with mortgage38.8%
Owned outright16.2%
Rented39.7%
Vacant5.3%

Type of building

% of housing unitsValue
Detached house69.3%
Townhome4.8%
2–4 units8.9%
5–19 units9.5%
20+ units5.2%
Mobile / other2.3%

Businesses in 37040

1,543 business establishments with 30,869 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

37040 has 38 USPS carrier routes with 26,332 residential and 2,286 business mailboxes. Open the EDDM route map.

Carrier routes in 37040

37040 has 38 USPS carrier routes (10 city (C), 28 rural (R)) with 26,332 residential and 2,286 business mailboxes. Routes range from 22 homes (C016) to 1,093 homes (R027); the median route has 691 homes. The Census counted 24,705 households in 37040 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2492
250–4994
500–74918
750–9999
1,000–1,4995
1,500+0

Best routes in 37040 for…

Most businesses

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

  1. Route C009 — USPS business mailboxes 428, 179 homes
  2. Route R053 — USPS business mailboxes 364, 312 homes
  3. Route R020 — USPS business mailboxes 214, 576 homes
  4. Route C003 — USPS business mailboxes 204, 487 homes
  5. Route C013 — USPS business mailboxes 136, 671 homes

Select these 5 routes on the route map

Every carrier route in 37040

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City1,01683$66,009———
C002City77832$40,661———
C003City487204$15,074———
C007City95033$35,634———
C008City88146$35,634———
C009City179428$40,661———
C011City52744$36,760———
C013City671136$48,403———
C015City1,0586$66,009———
C016City2229$36,760———
R001Rural5266$99,010———
R006Rural5402$99,010———
R011Rural6830$83,156———
R012Rural66315$63,886———
R015Rural6660$67,967———
R016Rural73813$100,450———
R020Rural576214$44,479———
R023Rural53321$62,912———
R027Rural1,09314$83,156———
R030Rural7962$75,210———
R034Rural1,07884$44,479———
R038Rural8454$100,177———
R039Rural627122$83,156———
R044Rural1,03748$79,771———
R048Rural81519$75,210———
R053Rural312364$83,156———
R054Rural6980$96,197———
R056Rural70034$56,584———
R063Rural5820$100,177———
R066Rural7800$85,056———
R067Rural9735$70,427———
R074Rural41893$122,210———
R076Rural70370$122,210———
R077Rural66131$62,912———
R078Rural83614$63,284———
R084Rural73540$84,518———
R089Rural4700$91,312———
R091Rural67930$53,963———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 37040 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 37040

Where it ranks

Mail every home in 37040

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) 37040, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 37040 in?
37040 is a Clarksville, TN mailing address. By land area, 33% lies inside Clarksville; the rest is outside any Census-defined city or community.
What county is 37040 in?
37040 is in Montgomery County.
What is the population of 37040?
About 64,977 people (±2,529), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 60,382.
What is the median household income in 37040?
$67,745 (±$2,310), 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 37040?
38 USPS carrier routes with 26,332 residential and 2,286 business mailboxes (28,539 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 37040?
The closest, measured center to center: 37043 (5.3 mi, Clarksville), 37042 (5.7 mi, Clarksville), 37171 (10.6 mi), 37052 (11.3 mi), 37191 (11.3 mi) and 42223 (11.4 mi, Fort Campbell North).

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