Which ZIP code in Waukesha County has the highest median household income?

53122 (Elm Grove), at $157,962 (±$22,241), among 25 ZIP codes with at least 1,000 residents.

Why are some ZIP codes missing?

ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

Richest ZIP codes in Waukesha County, WI

These are the 25 ZIP codes in Waukesha County with the highest median household income, out of 25 with at least 1,000 residents. 53122 (Elm Grove, $157,962), 53017 (Colgate, $153,917) and 53153 (North Prairie, $152,543) lead the list. There is no single "best" ZIP code in Waukesha County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Richest ZIP codes in Waukesha County

Rank	ZIP	Mailing city	Median household income	Residents	Households	Residential mailboxes
1	53122	Elm Grove	$157,962 ±$22,241	6,508	2,293	2,847
2	53017	Colgate	$153,917 ±$18,434	5,458	1,868	—
3	53153	North Prairie	$152,543 ±$19,996	2,548	971	—
4	53103	Big Bend	$137,083 ±$29,579	3,762	1,561	—
5	53005	Brookfield	$126,739 ±$6,943	21,675	8,455	—
6	53018	Delafield	$124,595 ±$17,741	8,201	3,401	3,219
7	53045	Brookfield	$123,750 ±$9,116	23,329	9,680	—
8	53089	Sussex	$120,875 ±$10,671	20,588	7,861	—
9	53119	Eagle	$117,759 ±$20,316	5,803	2,289	—
10	53189	Waukesha	$117,008 ±$2,661	26,855	10,334	—
11	53066	Oconomowoc	$113,114 ±$5,484	37,558	15,148	17,810
12	53149	Mukwonago	$110,608 ±$7,711	19,614	7,405	—
13	53146	New Berlin	$110,035 ±$19,912	7,285	2,979	3,095
14	53150	Muskego	$109,276 ±$8,606	26,259	10,686	10,881
15	53183	Wales	$108,827 ±$6,389	3,111	1,058	—
16	53118	Dousman	$108,772 ±$6,450	7,554	2,990	3,044
17	53029	Hartland	$108,152 ±$8,340	21,778	8,511	—
18	53058	Nashotah	$104,444 ±$17,465	3,405	1,344	1,490
19	53151	New Berlin	$101,176 ±$4,203	32,824	13,958	—
20	53051	Menomonee Falls	$100,031 ±$7,977	39,559	16,407	—
21	53072	Pewaukee	$98,538 ±$5,046	26,200	12,037	12,401
22	53188	Waukesha	$92,409 ±$4,563	34,892	14,693	15,975
23	53046	Lannon	$83,889 ±$18,576	1,482	718	1,039
24	53186	Waukesha	$74,588 ±$5,534	33,374	14,758	15,024
25	53007	Butler	$60,000 ±$19,700	1,859	798	—

How we ranked them

Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population. ZIP codes need at least 1,000 residents to be ranked; 25 of 27 qualify.

Which of these to mail, and why

Higher-income ZIP codes suit offers with a bigger ticket: remodeling, pools, roofing, financial planning, private schools, premium dining. A median describes the middle household, not every door, so the routes inside each ZIP still vary.

The top five ZIP codes on this list hold 15,148 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 53122 on the EDDM route map

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Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Waukesha County has the highest median household income?: 53122 (Elm Grove), at $157,962 (±$22,241), among 25 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population.
Why are some ZIP codes missing?: ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

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