Kentucky ZIP Codes

Kentucky ZIP code list — 656 ZIP codes across 120 counties and 569 cities. Search by city or filter by county.

656

ZIP codes

120

counties

569

cities

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About Kentucky ZIP codes

Kentucky's postal system comprises 656 ZIP codes spanning all 120 counties and 569 cities and communities across the Commonwealth. ZIP codes in Kentucky range from 40003 to 42788, covering everything from the bustling urban neighborhoods of Louisville to the winding creek communities of the Appalachian coalfields in the east and the flat farmlands of the Jackson Purchase region in the west. Jefferson County anchors the state with 48 ZIP codes — the most of any county — reflecting Louisville's role as Kentucky's largest and most economically active city. Whether you're mailing a package to Lexington, routing a delivery through Pikeville, or looking up a small community in western Kentucky, the state's well-organized ZIP code structure makes navigation straightforward.

Kentucky ZIP codes span prefixes 400 through 427, covering the state from its northern border along the Ohio River down through the Appalachian coalfields in the east and west to the Purchase region near the Mississippi River. The 400-410 range generally covers the north-central corridor including Louisville and the Bluegrass Region, while the 411-418 prefixes serve the mountainous eastern counties, and the 420-427 range covers western Kentucky. Notably, prefix 419 is absent from Kentucky's assignments, creating a small gap in the sequence.

Jefferson County leads all Kentucky counties with 48 ZIP codes, which reflects its status as the state's most populous county and home to Louisville, Kentucky's largest city and a major regional hub with dense urban, suburban, and commercial postal needs.

Quick facts

Kentucky's ZIP codes span a relatively tight numeric range — 40003 to 42788 — yet cover 120 distinct counties, reflecting the state's mix of dense urban centers like Louisville and sprawling rural Appalachian communities.
Eastern Kentucky's Pike County, with 27 ZIP codes, ranks second in the state despite being largely rural, a testament to the historically scattered settlement patterns of coal mining communities across its many hollows and creek beds.
Louisville was one of the earliest cities in the country to adopt Zone Improvement Plan (ZIP) codes when the USPS introduced the system in 1963, and its 48 Jefferson County codes today represent one of the most complex urban postal grids in the South.

Frequently asked questions

What ZIP codes are in Louisville, Kentucky?

Louisville, Kentucky uses a range of ZIP codes primarily beginning with 402. Common Louisville ZIP codes include 40202, 40203, 40204, 40205, 40206, 40207, 40208, 40209, 40210, 40211, 40212, 40213, 40214, 40215, 40216, 40217, 40218, 40219, 40220, 40222, 40223, 40228, 40229, 40241, 40242, 40243, 40245, 40258, 40272, and 40299, among others. Louisville spans much of Jefferson County, which has 48 ZIP codes in total — the most of any county in Kentucky.

How many ZIP codes does Kentucky have?

Kentucky has 656 ZIP codes in total. These codes serve 569 cities and communities across all 120 counties in the state, ranging from the dense urban neighborhoods of Louisville to the most remote rural areas of the Appalachian Mountains in the east.

What do Kentucky ZIP codes start with?

All Kentucky ZIP codes start with either 4, and more specifically fall within the prefixes 400 through 427 — though prefix 419 is not used in Kentucky. The lower prefixes in the 400-410 range generally correspond to north-central and Bluegrass region areas, the 411-418 range covers eastern Kentucky, and prefixes 420-427 serve western Kentucky and the Pennyrile and Purchase regions.

Which county in Kentucky has the most ZIP codes?

Jefferson County has the most ZIP codes in Kentucky with 48, driven by the size and population density of Louisville, the state's largest city. Pike County in eastern Kentucky comes in second with 27 ZIP codes, followed closely by Floyd County, also in eastern Kentucky, with 26 ZIP codes.

Looking for a downloadable Kentucky ZIP code list? Our Gold Edition database includes all 656 KY ZIP codes with city, county, latitude, longitude, timezone, and FIPS codes — available in Excel, CSV, and Access formats.

Last updated April 2026

Demographics & statistics

4,495,705

Population

39.2

Median age

$62,764

Median household income

$33,524

Per capita income

$121,762

Median home value

$521

Median monthly rent

76.5%

Home ownership

20.5%

Poverty rate

6.1%

Unemployment

1,431,065

Housing units

16.6%

Bachelor's or higher

Age distribution

Male Female

138,871

Under 5

128,047

144,894

5–9

133,600

151,736

10–14

139,909

151,997

15–19

140,149

159,102

20–24

146,700

304,722

25–34

280,969

291,600

35–44

268,870

293,530

45–54

270,649

154,867

55–59

142,795

155,460

60–64

143,343

237,850

65–74

219,309

114,310

75–84

105,399

40,075

85+

36,952

← Male

Female →

Age summary

Group	Count	%
Under 18	1,012,333	21.3%
18 and over	3,483,372	78.7%
65 and over	753,895	18.4%
Median age	39.2 years

Race & ethnicity

White 82.3%

Black or African American 7.8%

Two or more races 4.1%

Hispanic or Latino 2.8%

Asian 1.5%

Other race 1.2%

American Indian / Alaska Native 0.1%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
White	3,809,260	82.3%
Black or African American	359,928	7.8%
Two or more races	190,050	4.1%
Hispanic or Latino	130,245	2.8%
Asian	69,136	1.5%
Other race	56,675	1.2%
American Indian / Alaska Native	6,827	0.1%
Native Hawaiian / Pacific Islander	3,829	0.1%

Household income

Under $10k 7.4%

$10k–$15k 7.5%

$15k–$25k 11.3%

$25k–$35k 10.5%

$35k–$50k 12.8%

$50k–$75k 17.7%

$75k–$100k 12.0%

$100k–$150k 12.7%

$150k–$200k 4.3%

$200k+ 3.6%

Range	% of households
Under $10k	7.4%
$10k–$15k	7.5%
$15k–$25k	11.3%
$25k–$35k	10.5%
$35k–$50k	12.8%
$50k–$75k	17.7%
$75k–$100k	12.0%
$100k–$150k	12.7%
$150k–$200k	4.3%
$200k+	3.6%
Median income	$62,764

Housing

Home values

Under $50k 20.3%

$50k–$100k 23.2%

$100k–$150k 16.7%

$150k–$200k 12.8%

$200k–$300k 14.3%

$300k–$500k 8.6%

$500k–$1M 3.0%

$1M+ 0.7%

Housing overview

Metric	Value
Median home value	$121,762
Median rent / month	$521
Owner occupied	76.5%
Renter occupied	23.5%
Vacant	16.6%
Single-family detached	67.9%
Large apartment buildings	1.2%
Mobile homes	23.3%
Median rooms	5.7
Avg household size (owned)	2.58

Year built

Era	%
2020 or later	0.5%
2010–2019	7.5%
2000–2009	13.4%
1990–1999	17.5%
1980–1989	14.2%
1970–1979	16.7%
1960–1969	9.1%
1950–1959	7.1%
1940–1949	4.5%
1939 or earlier	9.5%

Bedrooms

Size	% of units
No bedroom (studio)	1.2%
1 bedroom	5.5%
2 bedrooms	26.3%
3 bedrooms	49.8%
4 bedrooms	13.6%
5+ bedrooms	3.7%

Vehicles per household

Vehicles	% of households
No vehicle	6.6%
1 vehicle	28.8%
2 vehicles	36.7%
3 or more	27.9%

Heating fuel

Fuel type	%
Utility gas	19.7%
Electricity	60.1%
Propane / LP gas	11.8%
Fuel oil	1.5%
Wood	5.5%
Solar	0.1%
No fuel used	0.4%

Households & families

Household type	Count	%
Married-couple family	837,931	51.8%
Cohabiting couple	122,933	6.1%
Male householder, no spouse	325,512	18.2%
Female householder, no spouse	479,972	23.9%
Households with children under 18	537,010	30.4%
Households with seniors (65+)	539,339	33.2%
Average household size	2.57

Marital status

Status	Male	Female
Never married	28.9%	21.4%
Married	52.8%	51.8%
Separated	2.0%	2.4%
Widowed	3.8%	11.4%
Divorced	12.4%	12.7%

Education

Less than 9th grade 7.5%

Some HS, no diploma 10.0%

HS graduate 39.3%

Some college, no degree 18.2%

Associate's degree 8.3%

Bachelor's degree 9.6%

Graduate / professional 7.0%

Metric	%
HS diploma or higher	82.4%
Bachelor's or higher	16.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	61,206	5.4%
Kindergarten	51,944	4.8%
Elementary school	445,506	44.9%
High school	225,083	24.3%
College / grad school	248,792	16.8%

Employment

Industry of employment

Education & healthcare 24.2%

Manufacturing 13.5%

Retail trade 11.7%

Construction 8.0%

Professional & management 6.9%

Transportation & utilities 6.6%

Arts, food & hospitality 6.3%

Public administration 4.8%

Agriculture & mining 4.7%

Other services 4.5%

Finance & real estate 3.9%

Wholesale trade 2.2%

Information 1.3%

Occupation

Category	%
Management, business & arts	29.9%
Service	16.2%
Sales & office	19.4%
Natural resources & construction	13.3%
Production & transportation	19.8%

Employment type

Type	%
Private sector	76.0%
Government	15.7%
Self-employed	6.5%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	78.9%
Carpool	10.1%
Public transit	0.5%
Walk	1.9%
Other means	1.1%
Avg commute (minutes)	24.4

Poverty

All people 20.5%

Under 18 years 25.1%

18 and over 18.8%

Married-couple families 9.8%

Female-led households 33.2%

Income support

Source	% of households
Social Security	41.9%
Retirement income	24.9%
Supplemental Security	10.6%
Cash public assistance	2.3%
Food stamps / SNAP	17.5%

Health indicators

Condition	%
High blood pressure	42.3%
High cholesterol	37.4%
Heart disease	8.3%
Stroke	4.0%
Asthma	11.7%
Arthritis	32.7%
Kidney disease	3.4%
Pulmonary disease	12.2%
Cancer	6.6%

Behavior / access	%
Binge drinking	14.8%
No physical activity	33.9%
Less than 7 hrs sleep	38.3%
Fair or poor health	23.5%
Poor mental health	19.0%
Poor physical health	15.9%
No health insurance	11.7%
Visited doctor (checkup)	75.4%
Visited dentist	49.6%
Cholesterol screening	87.5%
Teeth loss	22.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	244,502	6.4%

Disability	%
Any disability	23.2%
Under 18	6.7%
18–64 years	21.5%
65 and over	44.7%

Health insurance coverage

Type	%
Private insurance	54.9%
Public insurance	53.1%
Uninsured under 19	4.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,228,787	94.7%
Spanish	102,761	1.1%
Other Indo-European	50,703	0.5%
Asian & Pacific Islander	21,060	0.4%
Other languages	19,470	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,311,422	98.5%
Born in same state	4,275,535	98.0%
Born in different state	3,059,456	74.6%
Foreign born	35,887	0.5%
Naturalized citizen	184,283	1.5%
Not a US citizen	77,315	28.7%

Ancestry

Ancestry	Count	%
French	580,144	12.9%
Arab	568,704	12.6%
Italian	499,040	11.1%
English	34,899	0.8%
Polish	15,097	0.3%

Ancestry	Count	%
German	7,594	0.2%
Irish	7,232	0.2%
Dutch	4,260	0.1%
Norwegian	2,948	0.1%

Technology access

Metric	% of households
Computer access	39.7%
Internet access	87.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.