Data Last Updated: May 1, 2025

Waukesha County, WI ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Waukesha, WI.	37 ZIP Codes (25 General, 6 PO Box, 0 Unique, & 6 Multi County) [More Details]
Area Codes: The Telephone Area Codes that are associated with Waukesha, WI. 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.	262, 274, 414, 920
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.	Central
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 Waukesha, WI 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.	406,978 [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.	55133
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.	Milwaukee-Waukesha, WI
Land Area: The approximate amount of land area covered by Waukesha, WI 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.	550 square miles
Water Area: The approximate amount of water area covered by Waukesha, WI 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.	31 square miles
Coordinates: The latitude/longitude centroid coordinates for Waukesha County, WI.	-88.304517, 43.018224
Quick Link: Copy the direct link to the Waukesha, WICounty page and use anywhere you like!	https://www.zip-codes.com/county/wi-waukesha.asp

Waukesha, WI ZIP Code Boundaries

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Waukesha County, WI Covers 37 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 53005	General	Brookfield	21,433	5.27%
ZIP Code 53007	General	Butler	1,787	0.44%
ZIP Code 53008	P.O. Box	Brookfield	0	0.00%
ZIP Code 53017 *	General	Colgate	5,496	--
ZIP Code 53018	General	Delafield	7,396	1.82%
ZIP Code 53029	General	Hartland	21,239	5.22%
ZIP Code 53036 *	General	Ixonia	3,540	--
ZIP Code 53045	General	Brookfield	23,651	5.81%
ZIP Code 53046	General	Lannon	1,355	0.33%
ZIP Code 53051	General	Menomonee Falls	38,562	9.48%
ZIP Code 53052	P.O. Box	Menomonee Falls	0	0.00%
ZIP Code 53056	P.O. Box	Merton	0	0.00%
ZIP Code 53058	General	Nashotah	3,340	0.82%
ZIP Code 53064	P.O. Box	North Lake	0	0.00%
ZIP Code 53066	General	Oconomowoc	36,595	8.99%
ZIP Code 53069	General	Okauchee	732	0.18%
ZIP Code 53072	General	Pewaukee	26,687	6.56%
ZIP Code 53089	General	Sussex	19,657	4.83%
ZIP Code 53103	General	Big Bend	3,833	0.94%
ZIP Code 53118	General	Dousman	7,085	1.74%
ZIP Code 53119	General	Eagle	5,751	1.41%
ZIP Code 53122	General	Elm Grove	6,578	1.62%
ZIP Code 53127	P.O. Box	Genesee Depot	152	0.04%
ZIP Code 53146	General	New Berlin	7,677	1.89%
ZIP Code 53149	General	Mukwonago	19,644	4.83%
ZIP Code 53150	General	Muskego	25,804	6.34%
ZIP Code 53151	General	New Berlin	32,535	7.99%
ZIP Code 53153	General	North Prairie	2,559	0.63%
ZIP Code 53156 *	General	Palmyra	2,972	--
ZIP Code 53178 *	General	Sullivan	2,703	--
ZIP Code 53183	General	Wales	3,110	0.76%
ZIP Code 53185 *	General	Waterford	18,761	--
ZIP Code 53186	General	Waukesha	32,332	7.94%
ZIP Code 53187	P.O. Box	Waukesha	0	0.00%
ZIP Code 53188	General	Waukesha	35,552	8.74%
ZIP Code 53189	General	Waukesha	26,846	6.60%
ZIP Code 53225 *	General	Milwaukee	25,138	--

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

Important Waukesha, WI Information

Waukesha County, WI Covers 37 ZIP Codes. This includes 25 General ZIP Codes, 6 PO Box ZIP Codes, and 0 Unique (reserved for Business and Volume Mail Receivers). There are also 6 Multi County ZIP Codes. These records are assigned a different primary county, but they partially cover area in Waukesha County.

The population for Waukesha County is 406,978, according to the U.S. Census. Population Density is 739.96 persons per square mile. With 172,177 Housing Units, the Average Household Size is 2.45 persons. There are 164,537 Family Households with an Average Family Size of 2.73 persons. 2.62% of the population is without Health Insurance. The 65.44% Employment Rate is 5.64% above the national average of 59.8%.292,041 people aged 25+ have some educational achievement, with 47.94% (or 139,995 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

There are 4 area codes serving this area including262, 274, 414 and 920. Waukesha is also located in the Central timezone and the current local time is shown above.

Waukesha is part of the Milwaukee-Waukesha, WI Core Based Statistical Area (CBSA). Its CBSA Code is 33340.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 Waukesha, WI have 179,421 Residential mailboxes and 12,275 Business mailboxes.There are 12,861 businesses with a total of 240,111 employees. That is an average of 18.7 employees per business. Annual payroll for these businesses is $15,478,988,000. Other Demographics

Waukesha County Demographic Profile

Population & People

Total Population

406,978

Income

Median Household Income

$104,100

Housing

Total Housing Units

172,177

Health

Without Healthcare Coverage

2.62%

Business & Economy

Total Businesses

12,861

Families

Total Households

164,537

Employment

Employment Rate

65.44%

Education

Bachelor's Degree or Higher

47.94%

Total Population: Total number of people from the 2020 U.S. Census for Waukesha, WI. 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.	406,978
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Waukesha, WI. 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.	439,668
Total Households: Total number of Households from the 2020 U.S. Census for Waukesha, WI. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	164,537
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.	172,177
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.	2.45
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.	2.73

Other Waukesha Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	179,421
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	12,275
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.	210,242
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	139,706
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	23,718

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	12,861
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$3,709,949,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$15,478,988,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	240,111

Sum of all ZIP Codes assigned Waukesha, WI as their primary County.

References

U.S. Postal Service [Last Updated: 5/1/2025], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 5/1/2025], 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