| ZIP Codes: | 46 ZIP Codes (35 Standard, 3 PO Box, 8 Unique) [See All] |
| Area Codes: | 262 / 274 / 414 / 920 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:14:19 PM |
| Population: | 926,469 [See All] |
| FIPS: | 55079 |
| CBSA: | Milwaukee-Waukesha, WI |
| Land Area: | 243 sq mi |
| Water Area: | 10 sq mi |
| Coordinates: | 43.0268, -87.9563 |
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926,469 residents live across 46 ZIPs covering 243 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 953,446 to 926,469 from 2014 to 2024 — a -2.8% change. 11 ZIPs gained residents, 25 lost.
The county's wealthiest ZIP 53217 (Milwaukee, $133,021 median) and poorest ZIP 53233 (Milwaukee, $23,750) are 7.8 miles apart — a 5.6× income gap across local geography.
Median home values vary 5.4× across this county — from $83,400 in 53206 (Milwaukee) to $449,100 in 53217 (Milwaukee).
Density varies 12× across the county — from 1,019 people/sq mi in 53132 (Franklin) to 12,070 in 53204 (Milwaukee).
Most of the decade's growth concentrated around Milwaukee — top growth ZIPs averaged +39.8% over the past ten years ( 53203 , 53202 and 53154 ).
Educational attainment ranges from 7.4% bachelor's+ in 53206 (Milwaukee) to 73.1% in 53217 (Milwaukee) — the breadth of educational profiles across the area.
Within Wisconsin, this is the #1 most populous of 73 counties and ranks #54 for median household income .
On the national stage, Milwaukee County is the #60 most populous US county .
Hosts 4 single-entity Unique ZIPs: 53295Zablocki Va Medical Ctr ; 53290We Energies ; 53274Wi Child Support ; and 53288Bmo Harris Bank .
Weighted by population, the typical household earns about $67,401 across the county — reflecting what a typical resident sees, not a simple ZIP average.
34.7% of adults age 25+ hold a bachelor's degree or higher (215,003 of 619,723 reporting). The most-educated ZIPs cluster around Milwaukee.
35 Standard delivery, 3 PO Box only, 8 single-entity Unique ZIPs serve this county.
6 ZIPs in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
8 ZIP codes in this county serve a single facility — typically theme parks, universities, large corporations, airports, or government complexes.
Median household income spans 5.6× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 53215 | Milwaukee | Standard | 58,146 | $54,289 | 5.5 | -6.2% |
| 53209 | Milwaukee | Standard | 45,170 | $48,486 | 11.0 | 0.2% |
| 53218 | Milwaukee | Standard | 41,196 | $45,642 | 5.9 | -3.1% |
| 53204 | Milwaukee | Standard | 39,996 | $45,934 | 3.3 | -1.6% |
| 53221 | Milwaukee | Standard | 38,044 | $63,265 | 9.0 | -3.3% |
| 53154 | Oak Creek | Standard | 37,325 | $96,555 | 28.5 | 7.2% |
| 53132 | Franklin | Standard | 35,433 | $109,850 | 34.8 | 0.4% |
| 53219 | Milwaukee | Standard | 34,764 | $70,388 | 5.1 | -2.2% |
| 53214 | Milwaukee | Standard | 34,480 | $60,962 | 7.1 | 0.2% |
| 53207 | Milwaukee | Standard | 34,313 | $79,117 | 10.2 | -6.7% |
| 53211 | Milwaukee | Standard | 34,234 | $75,256 | 3.9 | -1.5% |
| 53216 | Milwaukee | Standard | 30,345 | $46,752 | 4.6 | -7.5% |
| 53217 | Milwaukee | Standard | 29,957 | $133,021 | 14.4 | 1.6% |
| 53212 | Milwaukee | Standard | 28,938 | $47,298 | 4.2 | -7.1% |
| 53223 | Milwaukee | Standard | 28,793 | $60,839 | 9.9 | -0.7% |
| 53220 | Milwaukee | Standard | 27,782 | $69,319 | 5.5 | 3.0% |
| 53208 | Milwaukee | Standard | 27,201 | $52,690 | 4.3 | -12.6% |
| 53213 | Milwaukee | Standard | 26,905 | $101,688 | 3.9 | 2.0% |
| 53202 | Milwaukee | Standard | 25,861 | $71,034 | 2.3 | 8.0% |
| 53225 | Milwaukee | Standard | 25,187 | $56,545 | 7.0 | -0.8% |
| 53222 | Milwaukee | Standard | 24,663 | $76,980 | 5.4 | -4.3% |
| 53210 | Milwaukee | Standard | 23,922 | $48,217 | 2.6 | -10.3% |
| 53227 | Milwaukee | Standard | 22,885 | $73,321 | 5.1 | -0.8% |
| 53224 | Milwaukee | Standard | 21,223 | $67,803 | 10.1 | -4.0% |
| 53172 | South Milwaukee | Standard | 20,442 | $73,427 | 4.8 | -3.6% |
| 53206 | Milwaukee | Standard | 19,887 | $29,336 | 2.6 | -27.5% |
| 53226 | Milwaukee | Standard | 18,908 | $93,132 | 6.9 | -0.1% |
| 53110 | Cudahy | Standard | 17,853 | $66,719 | 4.8 | -2.9% |
| 53228 | Milwaukee | Standard | 15,121 | $75,033 | 5.3 | 6.1% |
| 53129 | Greendale | Standard | 14,570 | $95,012 | 5.2 | 2.7% |
| 53233 | Milwaukee | Standard | 14,497 | $23,750 | 1.8 | -4.7% |
| 53205 | Milwaukee | Standard | 9,265 | $31,529 | 1.4 | -10.4% |
| 53235 | Saint Francis | Standard | 9,004 | $57,368 | 2.5 | -4.3% |
| 53130 | Hales Corners | Standard | 7,712 | $87,008 | 3.1 | -0.7% |
| 53203 | Milwaukee | Standard | 2,357 | $86,159 | 0.4 | 104.2% |
| 53295 | Milwaukee | Unique | 90 | — | 0.2 | -44.1% |
| 53201 | Milwaukee | PO Box | — | — | 0.0 | — |
| 53290 | Milwaukee | Unique | — | — | 0.0 | — |
| 53274 | Milwaukee | Unique | — | — | 0.0 | — |
| 53234 | Milwaukee | PO Box | — | — | 0.0 | — |
| 53237 | Milwaukee | PO Box | — | — | 0.0 | — |
| 53288 | Milwaukee | Unique | — | — | 0.0 | — |
| 53293 | Milwaukee | Unique | — | — | 0.0 | — |
| 53259 | Milwaukee | Unique | — | — | 0.0 | — |
| 53278 | Milwaukee | Unique | — | — | 0.0 | — |
| 53263 | Milwaukee | Unique | — | — | 0.0 | — |