What city is 40059 in?

40059 is a Prospect, KY mailing address. By land area, 26% lies inside Louisville/Jefferson County metro government (balance) and 13% lies inside Prospect; the rest is outside any Census-defined city or community.

What is the population of 40059?

About 20,892 people (±1,108), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 20,254.

What is the median household income in 40059?

$152,727 (±$13,780), 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 40059?

16 USPS carrier routes with 9,323 residential and 315 business mailboxes (9,638 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 40059?

The closest, measured center to center: 40241 (3.9 mi, Louisville/Jefferson County metro government (balance), KY), 40025 (5.3 mi, Glenview), 40242 (5.5 mi, Lyndon), 40026 (5.7 mi, Goshen), 40056 (6.1 mi, Pewee Valley) and 47130 (6.4 mi, Jeffersonville).

40059 ZIP Code, Prospect, KY

Q: What county is 40059 in?

40059 is mostly in Oldham County (61% of its land), with smaller parts in Jefferson County.

40059 is a ZIP code in Prospect, Kentucky — mostly in Oldham County (61% of its land), with smaller parts in Jefferson County. It covers 28 square miles of land. The closest ZIP codes are 40241, 40025 and 40242. 20,892 people live here in 8,250 households, more than in 9 of every 10 Kentucky ZIP codes. With about 741 people per square mile it is lightly settled, and most homes are owner-occupied (87%). Median household income is $152,727, well above the Kentucky median of $63,726; the median age is 47.2, older than most ZIP codes.

Quick facts

Mailing city: Prospect, KY
County: Oldham County
Land area: 28 sq mi
Population: 20,892
Median household income: $152,727
Carrier routes: 16 (9,323 homes)

Key figures

Measure	Value
Residents	20,892
Households	8,250
Median household income	$152,727
Income per person	$91,414
Median age	47.2
Homeowners	87.4%
Median home value	$559,300
Median rent	$2,006
Bachelor's degree or higher	70.1%
Average commute (minutes)	26.4
Households with kids under 18	32.8%
Moved in the past year	7.4%
Below the poverty line	2.2%
Broadband internet	96.3%
Speak a non-English language at home	7.0%

Household income

% of households	Value
<$10K	0.8%
$10–15K	0.9%
$15–25K	2.8%
$25–35K	3.3%
$35–50K	3.6%
$50–75K	10.6%
$75–100K	11.8%
$100–150K	15.6%
$150–200K	12.6%
$200K+	38.0%

Age

% of all residents	Value
<10	9.2%
10–19	16.1%
20–24	4.1%
25–34	4.4%
35–44	12.1%
45–54	16.7%
55–64	15.3%
65–74	12.0%
75+	10.2%

Tenure

% of housing units	Value
Owned, with mortgage	53.0%
Owned outright	29.1%
Rented	11.5%
Vacant	6.5%

Type of building

% of housing units	Value
Detached house	80.7%
Townhome	7.2%
2–4 units	4.3%
5–19 units	2.0%
20+ units	5.3%
Mobile / other	0.4%

Businesses in 40059

537 business establishments with 3,862 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 92
Health Care and Social Assistance: 76
Real Estate and Rental and Leasing: 59
Accommodation and Food Services: 43
Finance and Insurance: 40
Construction: 39
Retail Trade: 36
Administrative and Support and Waste Management and Remediation Services: 36

EDDM carrier routes

40059 has 16 USPS carrier routes with 9,323 residential and 315 business mailboxes. Open the EDDM route map.

Carrier routes in 40059

40059 has 16 USPS carrier routes (16 rural (R)) with 9,323 residential and 315 business mailboxes. Routes range from 337 homes (R013) to 923 homes (R015); the median route has 564 homes. The Census counted 8,250 households in 40059 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

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

Best routes in 40059 for…

Most businesses

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

Route R013 — USPS business mailboxes 130, 337 homes
Route R011 — USPS business mailboxes 72, 572 homes
Route R001 — USPS business mailboxes 19, 513 homes
Route R015 — USPS business mailboxes 18, 923 homes
Route R016 — USPS business mailboxes 17, 840 homes

Select these 5 routes on the route map

Every carrier route in 40059

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R001	Rural	513	19	$200,001+	—	—	—
R002	Rural	582	0	$197,589	—	—	—
R003	Rural	449	0	$154,711	—	—	—
R004	Rural	552	14	$81,693	—	—	—
R005	Rural	587	3	$200,001+	—	—	—
R006	Rural	549	3	$200,001+	—	—	—
R007	Rural	492	8	$200,001+	—	—	—
R008	Rural	648	6	$200,001+	—	—	—
R009	Rural	555	1	$137,118	—	—	—
R010	Rural	596	8	$197,589	—	—	—
R011	Rural	572	72	$137,118	—	—	—
R012	Rural	556	4	$200,001+	—	—	—
R013	Rural	337	130	$200,001+	—	—	—
R014	Rural	572	12	$137,118	—	—	—
R015	Rural	923	18	$164,296	—	—	—
R016	Rural	840	17	$164,296	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 40059 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

40241 — Louisville/Jefferson County metro government (balance), KY (3.9 mi)
40025 — Glenview city, KY (5.3 mi)
40242 — Lyndon city, KY (5.5 mi)
40026 — Goshen city, KY (5.7 mi)
40056 — Pewee Valley city, KY (6.1 mi)
47130 — Jeffersonville city, IN (6.4 mi)
40222 — Louisville/Jefferson County metro government (balance), KY (6.5 mi)
40010 — Buckner CDP, KY (6.7 mi)

Areas that include 40059

Louisville/Jefferson County metro government (balance), KY ZIP codes — 23 ZIP codes
Prospect, KY ZIP codes — 1 ZIP code
River Bluff, KY ZIP codes — 1 ZIP code
Jefferson County ZIP codes — 39 ZIP codes
Oldham County ZIP codes — 9 ZIP codes
Kentucky ZIP code data

Where it ranks

Mail every home in 40059

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) 40059, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 40059 in?: 40059 is a Prospect, KY mailing address. By land area, 26% lies inside Louisville/Jefferson County metro government (balance) and 13% lies inside Prospect; the rest is outside any Census-defined city or community.
What county is 40059 in?: 40059 is mostly in Oldham County (61% of its land), with smaller parts in Jefferson County.
What is the population of 40059?: About 20,892 people (±1,108), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 20,254.
What is the median household income in 40059?: $152,727 (±$13,780), 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 40059?: 16 USPS carrier routes with 9,323 residential and 315 business mailboxes (9,638 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 40059?: The closest, measured center to center: 40241 (3.9 mi, Louisville/Jefferson County metro government (balance), KY), 40025 (5.3 mi, Glenview), 40242 (5.5 mi, Lyndon), 40026 (5.7 mi, Goshen), 40056 (6.1 mi, Pewee Valley) and 47130 (6.4 mi, Jeffersonville).

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