What city is 40051 in?

40051 is a New Haven, KY mailing address. None of its land lies inside a Census-defined city or community.

What is the population of 40051?

About 4,658 people (±770), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 4,366.

What is the median household income in 40051?

$80,337 (±$13,579), 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 40051?

4 USPS carrier routes with 1,861 residential and 39 business mailboxes (1,900 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 40051?

The closest, measured center to center: 40107 (5.2 mi, Boston), 40052 (6 mi, New Hope), 40062 (8.2 mi), 42748 (8.6 mi, Hodgenville), 40037 (8.9 mi, Loretto) and 40060 (9.8 mi, Raywick).

40051 ZIP Code, New Haven, KY

Q: What county is 40051 in?

40051 is mostly in Nelson County (68% of its land), with smaller parts in Larue and Hardin counties.

40051 is a ZIP code in New Haven, Kentucky — mostly in Nelson County (68% of its land), with smaller parts in Larue and Hardin counties. It covers 91 square miles of land. The closest ZIP codes are 40107, 40052 and 40062. 4,658 people live here in 1,737 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (86%). Median household income is $80,337, above the Kentucky median of $63,726.

Quick facts

Mailing city: New Haven, KY
County: Nelson County
Land area: 91 sq mi
Population: 4,658
Median household income: $80,337
Carrier routes: 4 (1,861 homes)

Key figures

Measure	Value
Residents	4,658
Households	1,737
Median household income	$80,337
Income per person	$31,362
Median age	35
Homeowners	85.8%
Median home value	$212,900
Median rent	$821
Bachelor's degree or higher	14.0%
Average commute (minutes)	29
Households with kids under 18	35.1%
Moved in the past year	9.9%
Below the poverty line	12.4%
Broadband internet	92.7%
Speak a non-English language at home	1.1%

Household income

% of households	Value
<$10K	6.9%
$10–15K	6.4%
$15–25K	6.6%
$25–35K	4.3%
$35–50K	9.7%
$50–75K	13.1%
$75–100K	14.9%
$100–150K	26.6%
$150–200K	5.6%
$200K+	6.0%

Age

% of all residents	Value
<10	13.8%
10–19	11.8%
20–24	4.7%
25–34	19.6%
35–44	9.7%
45–54	13.3%
55–64	14.3%
65–74	8.0%
75+	4.6%

Tenure

% of housing units	Value
Owned, with mortgage	47.2%
Owned outright	24.0%
Rented	11.6%
Vacant	17.3%

Type of building

% of housing units	Value
Detached house	81.1%
Townhome	2.0%
2–4 units	1.5%
5–19 units	3.9%
20+ units	0.0%
Mobile / other	11.4%

Businesses in 40051

61 business establishments with 519 employees (ZIP Codes Business Patterns 2023).

Construction: 15
Retail Trade: 13
Other Services (except Public Administration): 7
Administrative and Support and Waste Management and Remediation Services: 6
Transportation and Warehousing: 4
Manufacturing: 3
Wholesale Trade: 3
Professional, Scientific, and Technical Services: 3

EDDM carrier routes

40051 has 4 USPS carrier routes with 1,861 residential and 39 business mailboxes. Open the EDDM route map.

Carrier routes in 40051

40051 has 4 USPS carrier routes (3 rural (R), 1 highway contract (H)) with 1,861 residential and 39 business mailboxes. Routes range from 272 homes (R003) to 570 homes (R002); the median route has 510 homes. The Census counted 1,737 households in 40051 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

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

Best routes in 40051 for…

Most businesses

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

Route R002 — USPS business mailboxes 15, 570 homes
Route H066 — USPS business mailboxes 15, 476 homes
Route R001 — USPS business mailboxes 6, 543 homes
Route R003 — USPS business mailboxes 3, 272 homes

Select these 4 routes on the route map

Every carrier route in 40051

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
H066	Highway contract	476	15	$50,184	—	—	—
R001	Rural	543	6	$68,888	—	—	—
R002	Rural	570	15	$50,184	—	—	—
R003	Rural	272	3	$68,888	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 40051 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

40107 — Boston CDP, KY (5.2 mi)
40052 — New Hope CDP, KY (6 mi)
40062 (8.2 mi)
42748 — Hodgenville city, KY (8.6 mi)
40037 — Loretto city, KY (8.9 mi)
40060 — Raywick city, KY (9.8 mi)
40049 (10.1 mi)
40004 — Bardstown city, KY (12 mi)

Areas that include 40051

Where it ranks

Mail every home in 40051

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) 40051, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 40051 in?: 40051 is a New Haven, KY mailing address. None of its land lies inside a Census-defined city or community.
What county is 40051 in?: 40051 is mostly in Nelson County (68% of its land), with smaller parts in Larue and Hardin counties.
What is the population of 40051?: About 4,658 people (±770), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 4,366.
What is the median household income in 40051?: $80,337 (±$13,579), 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 40051?: 4 USPS carrier routes with 1,861 residential and 39 business mailboxes (1,900 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 40051?: The closest, measured center to center: 40107 (5.2 mi, Boston), 40052 (6 mi, New Hope), 40062 (8.2 mi), 42748 (8.6 mi, Hodgenville), 40037 (8.9 mi, Loretto) and 40060 (9.8 mi, Raywick).

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