ZIP Code 53237 in Milwaukee, WI

Data Last Updated: February 1, 2026
City:Milwaukee, Wisconsin
County:Milwaukee County
Timezone:Central (GMT -06:00)
Local Time:7:25:21 AM
Population:No Population Data
Area Codes:262 / 414
Classification:PO Box
Coordinates:43.0389, -87.9065
Quick Link:
https://www.zip-codes.com/zip-code/53237/zip-code-53237.asp

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53237 Milwaukee, WI - S Howell Ave Facility

ZIP Code 53237, Milwaukee

Small Town Unique ZIP No Census Data
LocationMilwaukee County, WI
Area0 sq mi Single Point
Delivery Points221 (111 businesses)
PO Boxes110
ZIP CreatedBefore Oct 2004
Enclosed InZIP Code 53207
Key Facts
  • This ZIP code was classified as PO Box only, but mail delivery includes a city carrier route serving units at S Howell Ave
  • With 110 PO Boxes and 111 business delivery points, this facility serves commercial tenants rather than residential addresses
  • The ZIP exists as a point location within the larger 53207 ZIP code in Milwaukee's Mitchell Field neighborhood
  • A single street address with 62 unit designators indicates a multi-tenant business complex or industrial facility
  • Zero residential population confirms this is a facility-specific ZIP rather than a community post office

Facility Overview

ZIP 53237 serves a facility location on S Howell Ave in Milwaukee's Mitchell Field neighborhood. This isn't a residential ZIP. The postal service maintains 110 PO Boxes and delivers to 111 business addresses, all concentrated at a single street address with multiple units.

How Mail Works Here

Despite its PO Box classification, this ZIP operates more like a business park than a traditional post office. The single carrier route serves 62 units at S Howell Ave, while PO Boxes provide additional mail access for tenants and businesses. With 4 business establishments employing 23 people, this appears to be a multi-tenant commercial or industrial facility.

Geographic Context

This ZIP has no residential population and no geographic territory. It exists as a point location within the larger 53207 ZIP code area. Milwaukee has multiple standard ZIP codes for residential delivery, so the PO Box classification here reflects the facility-specific nature of this location rather than a community-wide service pattern.

Street Name Patterns

Single Facility Unit Designators

Single street address with unit designators indicates multi-tenant facility.

Nearby Areas

Mitchell Field Holler Park New Coeln Mitchell West Maitland Park

Business & Employment Statistics


ZIP Code 53237 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 26 people with an annual payroll of $2,114,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:661Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:3Source: CBP
1st Quarter Payroll:$605,000Source: CBP
Annual Payroll:$2,114,000Source: CBP
# of Employees:26Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 53237 is located in Milwaukee County, Wisconsin, within the Milwaukee-Waukesha, WI Metropolitan Statistical Area (CBSA 33340) and Wisconsin's 4th Congressional District. This Metro area has a population of 1,555,908 people, about 0.00% of whom live in ZIP Code 53237. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:Milwaukee-Waukesha, WISource: Census
CBSA Number:33340Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:1,555,908Source: Census
MSA:Milwaukee-Racine, WI CMSASource: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:04Source: USPS
Congressional Land Area:128.35 sq miSource: Census
PMSA:Milwaukee-Waukesha, WI PMSASource: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:5553000Source: Census
Place Name:Milwaukee city; WisconsinSource: Census

Adjacent & Nearby ZIP Codes


53259 | | 53235

Schools in ZIP Code 53237


We could not locate which school district 53237 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Tenor High 918 Vel R Phillips Ave
Milwaukee, WI 53203
District: UnknownNearby
Lincoln Middle 820 E Knapp St
Milwaukee, WI 53202
District: Milwaukee School DistrictNearby
Project Stay-Supporting Teachers And Youth 609 N 8th St
Milwaukee, WI 53233
District: Milwaukee School DistrictNearby
Cass Street Elementary 1647 N Cass St
Milwaukee, WI 53202
District: Milwaukee School DistrictNearby
Milwaukee County Youth Education Center 949 N 9th St
Milwaukee, WI 53233
District: Milwaukee School DistrictNearby
St Joan Antida High School 1341 N Cass St
Milwaukee, WI 53202
District: Private SchoolNearby
Tamarack Waldorf School 1150 E Brady St
Milwaukee, WI 53202
District: Private SchoolNearby
St Marcus Lutheran School 2215 N Palmer St
Milwaukee, WI 53212
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 53237


The Institute Of Beauty And Wellness 327 East Saint Paul Avenue
Milwaukee, WI 53202-0000
Type: Post Secondary
Milwaukee School Of Engineering 1025 N Broadway
Milwaukee, WI 53202-3109
Type: Post Secondary
Milwaukee Institute Of Art & Design 273 E Erie St
Milwaukee, WI 53202-6003
Type: Post Secondary
Milwaukee Area Technical College 700 W State St
Milwaukee, WI 53233-1443
Type: Post Secondary
Marquette University 1250 W Wisconsin Avenue
Milwaukee, WI 53233
Type: Post Secondary
University Of Wisconsin-Milwaukee 2200 E Kenwood Blvd
Milwaukee, WI 53211
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov