What city is 40734 in?

40734 is a Gray, KY mailing address. None of its land lies inside a Census-defined city or community.

What is the population of 40734?

About 3,602 people (±678), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 3,877.

What is the median household income in 40734?

$42,500 (±$10,924), compared with $63,726 for Kentucky as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 40734?

3 USPS carrier routes with 1,541 residential and 40 business mailboxes (1,581 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 40734?

The closest, measured center to center: 40771 (5.8 mi, Corbin), 40906 (6.2 mi, Barbourville), 40949 (6.2 mi, Barbourville), 40740 (7.1 mi), 40923 (7.2 mi) and 40943 (7.3 mi).

40734 ZIP Code, Gray, KY

40734 is a ZIP code in Gray, Kentucky in Knox County. It covers 45 square miles of land. The closest ZIP codes are 40771, 40906 and 40949. 3,602 people live here in 1,300 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (77%). Median household income is $42,500, well below the Kentucky median of $63,726.

Quick facts

Mailing city: Gray, KY
County: Knox County
Land area: 45 sq mi
Population: 3,602
Median household income: $42,500
Carrier routes: 3 (1,541 homes)

Key figures

Measure	Value
Residents	3,602
Households	1,300
Median household income	$42,500
Income per person	$19,428
Median age	42.3
Homeowners	76.5%
Median home value	$131,700
Median rent	$697
Bachelor's degree or higher	7.7%
Average commute (minutes)	21.4
Households with kids under 18	33.8%
Moved in the past year	7.9%
Below the poverty line	32.6%
Broadband internet	89.7%
Speak a non-English language at home	0.0%

Household income

% of households	Value
<$10K	15.7%
$10–15K	8.5%
$15–25K	11.0%
$25–35K	2.2%
$35–50K	19.5%
$50–75K	20.6%
$75–100K	5.8%
$100–150K	14.1%
$150–200K	1.7%
$200K+	0.9%

Age

% of all residents	Value
<10	8.3%
10–19	14.5%
20–24	5.1%
25–34	11.4%
35–44	12.3%
45–54	16.9%
55–64	21.8%
65–74	6.5%
75+	3.2%

Tenure

% of housing units	Value
Owned, with mortgage	26.0%
Owned outright	39.8%
Rented	19.8%
Vacant	14.4%

Type of building

% of housing units	Value
Detached house	68.5%
Townhome	0.0%
2–4 units	0.0%
5–19 units	0.0%
20+ units	0.0%
Mobile / other	31.5%

Businesses in 40734

27 business establishments with 611 employees (ZIP Codes Business Patterns 2023).

Manufacturing: 6
Health Care and Social Assistance: 6
Other Services (except Public Administration): 4
Retail Trade: 3

EDDM carrier routes

40734 has 3 USPS carrier routes with 1,541 residential and 40 business mailboxes. Open the EDDM route map.

Carrier routes in 40734

40734 has 3 USPS carrier routes (2 rural (R), 1 highway contract (H)) with 1,541 residential and 40 business mailboxes. Routes range from 240 homes (R002) to 749 homes (R001); the median route has 552 homes. The Census counted 1,300 households in 40734 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

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

Best routes in 40734 for…

Most businesses

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

Route H035 — USPS business mailboxes 18, 552 homes
Route R002 — USPS business mailboxes 12, 240 homes
Route R001 — USPS business mailboxes 10, 749 homes

Select these 3 routes on the route map

Every carrier route in 40734

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
H035	Highway contract	552	18	$56,191	—	—	—
R001	Rural	749	10	$27,464	—	—	—
R002	Rural	240	12	$56,191	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 40734 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

40771 — Corbin city, KY (5.8 mi)
40906 — Barbourville city, KY (6.2 mi)
40949 — Barbourville city, KY (6.2 mi)
40740 (7.1 mi)
40923 (7.2 mi)
40943 (7.3 mi)
40946 (8.5 mi)
40759 — Rockholds CDP, KY (9.3 mi)

Areas that include 40734

Where it ranks

Mail every home in 40734

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) 40734, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 40734 in?: 40734 is a Gray, KY mailing address. None of its land lies inside a Census-defined city or community.
What county is 40734 in?: 40734 is in Knox County.
What is the population of 40734?: About 3,602 people (±678), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 3,877.
What is the median household income in 40734?: $42,500 (±$10,924), compared with $63,726 for Kentucky as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 40734?: 3 USPS carrier routes with 1,541 residential and 40 business mailboxes (1,581 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 40734?: The closest, measured center to center: 40771 (5.8 mi, Corbin), 40906 (6.2 mi, Barbourville), 40949 (6.2 mi, Barbourville), 40740 (7.1 mi), 40923 (7.2 mi) and 40943 (7.3 mi).

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