Data Last Updated: January 1, 2025

Jefferson County, KY ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Jefferson, KY.	77 ZIP Codes (36 General, 25 PO Box, 12 Unique, & 4 Multi County) [More Details]
Area Code: The Telephone Area Code that are associated with Jefferson, KY. Area Codes are used in the North American Numbering Plan (NANP) to facilitate phone routing. There are approximately 350 area codes in use in the United States.	502
Timezone: Time zone designation within the U.S. Please note that not all areas in the U.S. observe daylight saving time which can affect actual local time for this city. There are 7 standard time zones which are, from west to east: Hawaii-Aleutian, Alaska, Pacific, Mountain, Central, Eastern, Atlantic. Also included in U.S. Territories are Samoa, Guam and Palau.	Eastern
Local Time: The current local time for each timezone. If more than 1 time zone for this area, all local times will be shown. Counties can cross timezones, so more than 1 may be shown.	12:00:00 AM
Population: The population of Jefferson, KY from the U.S. Census 2020. Included are U.S. Citizens, permanent residents, temporary migrants, and undocumented individuals. The total population represents people who live in the city, not just those present while the Census was being completed.	782,969 [More Details]
FIPS: FIPS stands for Federal Information Processing Standards, which are a set of publicly announced standards for computer systems. A county FIPS code is a unique numeric identifier for a county in the United States, assigned by the National Institute of Standards and Technology (NIST). County FIPS codes have five digits, with the first two digits identifying the state and the last 3 indicating the county.	21111
CBSA: A Core Based Statistical Area (CBSA) is the recognized term for a region that functions around an urban core with a population of at least 10,000 people, according to the standards set by the Office of Management and Budget (OMB) in 2000. A CBSA is divided into two subsets: Metro and Micro, and these classifications are determined by population density. A Micro area is identified by a population ranging between 10,000 to 50,000, while a Metro area is defined as having a population that exceeds 50,000.	Louisville/Jefferson County, KY-IN
Land Area: The approximate amount of land area covered by Jefferson, KY in square miles. The Land Area provided by the Census Bureau is based on geographic boundaries that include the mainland, islands, inland, coastal, Great Lakes, and territorial waters associated with each city.	381 square miles
Water Area: The approximate amount of water area covered by Jefferson, KY in square miles. Calculations by the Census Bureau for Water Area take into account inland bodies of water, coastal regions, Great Lakes, and territorial sea waters. This encompasses features such as lakes, reservoirs, rivers, and coastal water bodies.	17 square miles
Coordinates: The latitude/longitude centroid coordinates for Jefferson County, KY.	-85.659138, 38.187174
Quick Link: Copy the direct link to the Jefferson, KYCounty page and use anywhere you like!	https://www.zip-codes.com/county/ky-jefferson.asp

Jefferson, KY ZIP Code Boundaries

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Jefferson County, KY Covers 77 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 40014 *	General	Crestwood	22,255	--
ZIP Code 40018	P.O. Box	Eastwood	0	0.00%
ZIP Code 40023	General	Fisherville	5,956	0.76%
ZIP Code 40025	P.O. Box	Glenview	491	0.06%
ZIP Code 40027	P.O. Box	Harrods Creek	0	0.00%
ZIP Code 40041	General	Masonic Home	545	0.07%
ZIP Code 40047 *	General	Mount Washington	23,597	--
ZIP Code 40059	General	Prospect	20,254	2.59%
ZIP Code 40109 *	General	Brooks	2,465	--
ZIP Code 40118	General	Fairdale	10,017	1.28%
ZIP Code 40177 *	General	West Point	1,680	--
ZIP Code 40201	P.O. Box	Louisville	0	0.00%
ZIP Code 40202	General	Louisville	7,179	0.92%
ZIP Code 40203	General	Louisville	16,801	2.15%
ZIP Code 40204	General	Louisville	14,600	1.86%
ZIP Code 40205	General	Louisville	24,077	3.08%
ZIP Code 40206	General	Louisville	20,196	2.58%
ZIP Code 40207	General	Louisville	30,104	3.84%
ZIP Code 40208	General	Louisville	17,048	2.18%
ZIP Code 40209	General	Louisville	426	0.05%
ZIP Code 40210	General	Louisville	14,418	1.84%
ZIP Code 40211	General	Louisville	21,310	2.72%
ZIP Code 40212	General	Louisville	16,360	2.09%
ZIP Code 40213	General	Louisville	16,698	2.13%
ZIP Code 40214	General	Louisville	46,220	5.90%
ZIP Code 40215	General	Louisville	21,230	2.71%
ZIP Code 40216	General	Louisville	43,434	5.55%
ZIP Code 40217	General	Louisville	13,061	1.67%
ZIP Code 40218	General	Louisville	33,437	4.27%
ZIP Code 40219	General	Louisville	40,300	5.15%
ZIP Code 40220	General	Louisville	34,315	4.38%
ZIP Code 40221	P.O. Box	Louisville	2	0.00%
ZIP Code 40222	General	Louisville	21,725	2.77%
ZIP Code 40223	General	Louisville	23,227	2.97%
ZIP Code 40224	P.O. Box	Louisville	0	0.00%
ZIP Code 40225	Unique	Louisville	0	0.00%
ZIP Code 40228	General	Louisville	18,655	2.38%
ZIP Code 40229	General	Louisville	39,380	5.03%
ZIP Code 40231	P.O. Box	Louisville	0	0.00%
ZIP Code 40232	P.O. Box	Louisville	0	0.00%
ZIP Code 40233	P.O. Box	Louisville	0	0.00%
ZIP Code 40241	General	Louisville	31,016	3.96%
ZIP Code 40242	General	Louisville	10,686	1.36%
ZIP Code 40243	General	Louisville	11,521	1.47%
ZIP Code 40245	General	Louisville	37,866	4.84%
ZIP Code 40250	P.O. Box	Louisville	0	0.00%
ZIP Code 40251	P.O. Box	Louisville	0	0.00%
ZIP Code 40252	P.O. Box	Louisville	0	0.00%
ZIP Code 40253	P.O. Box	Louisville	0	0.00%
ZIP Code 40255	P.O. Box	Louisville	0	0.00%
ZIP Code 40256	P.O. Box	Louisville	0	0.00%
ZIP Code 40257	P.O. Box	Louisville	0	0.00%
ZIP Code 40258	General	Louisville	26,807	3.42%
ZIP Code 40259	P.O. Box	Louisville	0	0.00%
ZIP Code 40261	P.O. Box	Louisville	0	0.00%
ZIP Code 40266	Unique	Louisville	0	0.00%
ZIP Code 40268	P.O. Box	Louisville	0	0.00%
ZIP Code 40269	P.O. Box	Louisville	0	0.00%
ZIP Code 40270	P.O. Box	Louisville	0	0.00%
ZIP Code 40272	General	Louisville	37,747	4.82%
ZIP Code 40280	Unique	Louisville	177	0.02%
ZIP Code 40281	Unique	Louisville	0	0.00%
ZIP Code 40282	Unique	Louisville	0	0.00%
ZIP Code 40283	Unique	Louisville	0	0.00%
ZIP Code 40285	P.O. Box	Louisville	0	0.00%
ZIP Code 40289	Unique	Louisville	0	0.00%
ZIP Code 40290	P.O. Box	Louisville	0	0.00%
ZIP Code 40291	General	Louisville	39,719	5.07%
ZIP Code 40292	Unique	Louisville	0	0.00%
ZIP Code 40293	General	Louisville	0	0.00%
ZIP Code 40295	P.O. Box	Louisville	0	0.00%
ZIP Code 40297	Unique	Louisville	0	0.00%
ZIP Code 40298	P.O. Box	Louisville	0	0.00%
ZIP Code 40299	General	Louisville	43,030	5.50%

* Indicates a Multi County ZIP Code. These ZIP Codes partially cross over into Jefferson, KY, but will mostly cover area in a different County. Not included in % of Population calculations.

Important Jefferson, KY Information

Jefferson County, KY Covers 77 ZIP Codes. This includes 36 General ZIP Codes, 25 PO Box ZIP Codes, and 12 Unique (reserved for Business and Volume Mail Receivers). There are also 4 Multi County ZIP Codes. These records are assigned a different primary county, but they partially cover area in Jefferson County.

The population for Jefferson County is 782,969, according to the U.S. Census. Population Density is 2,055.04 persons per square mile. With 356,887 Housing Units, the Average Household Size is 2.34 persons. There are 328,169 Family Households with an Average Family Size of 3.27 persons. 4.65% of the population is without Health Insurance. The 62.49% Employment Rate is 2.69% above the national average of 59.8%.540,240 people aged 25+ have some educational achievement, with 34.99% (or 189,038 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

502 is the only area code for this area. Jefferson is also located in the Eastern timezone and the current local time is shown above.

Jefferson is part of the Louisville/Jefferson County, KY-IN Core Based Statistical Area (CBSA). Its CBSA Code is 31140.It is classified as a metro area, which means the combined population is 50,000 or more (at its core).

CBSAs are defined by the OMB as geographic areas that have at least one core with a population of 10,000 or more (for a micro area) and adjacent territory with a high degree of social and economic integration. CBSA codes are commonly used to accurately file Medicare claims and to verify applicable incentives using a patient's ZIP Code.

ZIP Codes in Jefferson, KY have 365,983 Residential mailboxes and 22,970 Business mailboxes.There are 20,538 businesses with a total of 459,584 employees. That is an average of 22.4 employees per business. Annual payroll for these businesses is $27,212,272,000. Other Demographics

Jefferson County Demographic Profile

Population & People

Total Population

782,969

Income

Median Household Income

$61,633

Housing

Total Housing Units

356,887

Health

Without Healthcare Coverage

4.65%

Business & Economy

Total Businesses

20,538

Families

Total Households

328,169

Employment

Employment Rate

62.49%

Education

Bachelor's Degree or Higher

34.99%

Total Population: Total number of people from the 2020 U.S. Census for Jefferson, KY. This reflects the exact count of this area at that point in time, not future estimates, regardless of citizenship or immigration status. It is intended to count all persons living within the geographic area, not just those present on the day of the census.	782,969
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Jefferson, KY. This is derived from known delivery information, household occupancy rates, household size, and more to come up with an accurate estimation for the current population. IMPORTANT: This does not include population totals for persons in nursing homes, correctional facilities, or other institutions. This is an estimation of the household population based on US Postal Service delivery information.	860,682
Total Households: Total number of Households from the 2020 U.S. Census for Jefferson, KY. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	328,169
Total Housing Units: The total number of Housing Units is the number of occupied units + the number of vacant units. Ownership is defined by whether the unit is occupied by an owner or by a tenant. Owner occupancy means that the owner lives in the unit. This value comes from the 2020 U.S. Census and is not a projection or estimate.	356,887
Average Household Size: The Average Household Size, is obtained by dividing the number of people in Households (excluding those in group quarters, nursing home, prisons, and dorm rooms) by the number of Households. A Household includes everyone living in a residential unit. Those who do not live in a household are classified as living in group accommodation. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	2.34
Average Family Size: Average Family Size is calculated by dividing the number of people in a Family Household by the number of Family Households. The U.S. Census Bureau defines family households as households consisting of two or more individuals who are related by birth, marriage, or adoption. They also may include other unrelated people. Non-family households consist of people who live alone or who share their residence with unrelated individuals. The Average Family Size only looks at the households classified as Family Households. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	3.27

Other Jefferson Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	365,983
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	22,970
Total Delivery Receptacles: The total number of delivery receptacles. This includes curb side mailboxes, centralized units, PO Boxes, NDCBU, and contract boxes. This count is for Residential and Business combined.	440,339
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	260,289
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	56,576

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	20,538
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$6,982,759,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$27,212,272,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	459,584

Sum of all ZIP Codes assigned Jefferson, KY as their primary County.

References

U.S. Postal Service [Last Updated: 1/1/2025], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 1/1/2025], https://www.zip-codes.com
U.S. Geological Survey [Updated as needed], https://www.usgs.gov
U.S. Census [Updated Yearly], https://www.census.gov
U.S. Census 2020 [Decennial] [Last Updated: 5/25/2023], https://www.census.gov