These Are The 10 Richest ZIP Codes In Wisconsin: Report

MILWAUKEE, WI — The wealthiest ZIP codes in Wisconsin feature several high-income areas near Milwaukee, according to new census data compiled by IncomeByZipcode.com.

The site analyzed the latest five-year estimates from the U.S. Census Bureau’s American Community Survey to rank Wisconsin’s richest ZIP codes by mean household income. Each ZIP code included had at least 500 residents and a reasonable margin of error.

The report found that 53097 in Mequon is Wisconsin’s wealthiest ZIP code, with an average household income of $225,641 and a median household income of $150,391.

The suburban community of roughly 7,300 residents sits north of Milwaukee and is known for its large homes and high-performing schools.

To crack the top 10 in Wisconsin this year, ZIP codes needed an average household income of at least $170,000, a sign of concentrated affluence in some of the state’s most established suburbs and resort towns.

Here are the 10 wealthiest ZIP codes in Wisconsin, based on 2023 Census data:

1. 53097 (Mequon) — Average income: $225,641, Median: $150,391
2. 53217 (Fox Point / Whitefish Bay / River Hills) — Average: $194,650, Median: $132,044
3. 53044 (Kohler) — Average: $192,866, Median: $130,750
4. 53017 (Colgate area) — Average: $188,412, Median: $160,145
5. 53125 (Lake Geneva area) — Average: $187,883, Median: $108,750
6. 53092 (Thiensville / Mequon) — Average: $187,104, Median: $126,431
7. 53122 (Elm Grove) — Average: $185,285, Median: $133,036
8. 53045 (Brookfield) — Average: $171,088, Median: $116,541
9. 53058 (Nashotah) — Average: $171,055, Median: $110,234
10. 53018 (Delafield) — Average: $170,092, Median: $130,511

By the numbers:

• Wisconsin households earn slightly below the national average, with an average income of $99,059 (10% lower than the U.S. average) and a median of $75,670 (4% lower than the national median).
• Residents ages 45–64 earn the most, with a median household income of $92,539, while those under 25 have a median of $43,435.
• About 9% of Wisconsin households make $200,000 or more each year, according to the Census Bureau.
• The state’s wealthiest ZIP codes are concentrated in Milwaukee’s north suburbs and Lake Country, with additional clusters near Lake Geneva and Sheboygan County.

Check out the full IncomeByZipCode report here.