Residential delivery area · Wisconsin
ZIP Code 53004: Belgium, WI
ZIP code 53004 uses the postal name Belgium, Wisconsin and lies entirely in Ozaukee County (Census 2020 ZIP-county file). About 3,500 people live there (Census Bureau, ACS 2020-2024). Median household income is $84,821 (Census Bureau, ACS 2020-2024). By Census place, 6% of its land lies in Belgium, and 1% in smaller places; 93% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Belgium · its only residential ZIP
- County
- Ozaukee County
- Census places
- Belgium
- Metro area
- Milwaukee-Waukesha, WI
- House district
- WI-6 119th Congress
- State
- Wisconsin
- Time zone
- Central
- Land area
- 33.6 sq mi · 103 people per sq mi
Where is ZIP code 53004?
53004 centers on 43.500°, -87.881° and covers 33.6 square miles of land. It borders 4 ZIP codes: 53074, 53013, 53021, 53075.
The map draws ZIP code areas only. For the streets inside 53004, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 53004 compare with the rest of Ozaukee County?
| Measure | 53004 | In Ozaukee County | In WI |
|---|---|---|---|
| People (ACS 2020-2024) | 3,475 | 11th of 12 | 344th of 783 |
| Median household income | $85k | 8th of 12 | 219th of 610 |
| Median home value | $256k | 12th of 12 | 255th of 612 |
Its median household income is higher than in 68% of U.S. residential ZIP codes, and it is denser than 54% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 53004?
The 2020 Census counted 3,469 people in 53004; the ACS, which samples households over 2020-2024, estimates 3,475. Between the 2010 and 2020 censuses its population grew 4.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,475±365 (90% margin)
- 2020 Census count
- 3,469+4.2% since 2010 (3,330)
- Households
- 1,380
- Median age
- 46.8
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 53004?
Of the 3,475 people the ACS estimates in 53004, 14.5% are under 18 and 22.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.1%).
- Under 1814.5%
- 18 to 6463.5%
- 65 and older22.0%
- White, not Hispanic93.1%
- Hispanic or Latino4.3%
- Other or two or more1.6%
- Asian, not Hispanic0.7%
- Black, not Hispanic0.3%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 53004 earn?
Median household income is $84,821 (ACS 2020-2024), the 8th highest of the 12 ranked ZIP codes in Ozaukee County. It fell from $99,693 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $84,821±$12,054
- Income per person
- $42,586
- Below the poverty line
- 2.8%
- Unemployed (of the labor force)
- 3.8%
- Adults 25+ with a bachelor's degree
- 26.8%
- Adjusted gross income per tax return, 2022
- $80,3981,850 returns; wages 73% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 53004?
FHFA's house price index for 53004, built from repeat sales and appraisals of the same homes, rose 81% from 2015 to 2025 and rose 54% from 2020 to 2025, and moved +12.6% in 2025.
- Median home value (owners' estimate)
- $256,000
- Median gross rent
- $982
- Homes owned by their occupants
- 85.4%
- Housing units
- 1,479
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 53004?
74 business establishments had a location in this ZIP code in 2023, 7 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction12
- Retail trade10
- Other services (except public administration)10
- Manufacturing9
- Accommodation and food services9
- Professional, scientific, and technical services5
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 53004?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 53074 | Port Washington | 13,682 | $79k | 4.7 mi |
| 53013 | Cedar Grove | 3,717 | $84k | 4.8 mi |
| 53021 | Fredonia | 4,537 | $90k | 6.5 mi |
| 53075 | Random Lake | 3,402 | $94k | 7.1 mi |
| 53080 | Saukville | 5,059 | $80k | 8.4 mi (near) |
| 53070 | Oostburg | 4,951 | $92k | 9.1 mi (near) |
| 53031 | Hingham | 105 | – | 9.9 mi (near) |
| 53093 | Waldo | 2,135 | $101k | 10.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.