What ZIP codes does Michigan use for mail and package delivery?

Michigan (MI) operates within the 5-digit ZIP prefix range 480xx–499xx. Mail routed to state capital Lansing and key regional centers such as Detroit, Grand Rapids, Warren adheres to these official USPS boundaries.

Which telephone area codes are valid for Michigan?

Michigan is served by 13 active North American Numbering Plan (NANPA) area codes: 231, 248, 269, 313, 517, 586, 616, 679, 734, 810, 906, 947, 989. Synthetic telephone numbers for Michigan use those area codes with a 555 exchange, which is reserved for fictitious use.

How many counties are in Michigan?

Michigan is divided into 83 counties, including major administrative regions such as Wayne, Oakland, Macomb, Kent. Generated street addresses use those names.

What postal formatting conventions and addressing quirks are unique to Michigan?

Detroit metropolitan area's historic 'Mile Road' grid system (e.g., 8 Mile Rd, 16 Mile / Big Beaver Rd) extending north from Campus Martius in Detroit. Geographic and telecom separation of the Upper Peninsula (UP) using area code 906 and distinct 498xx–499xx postal routes. All addresses generated on this platform format secondary unit designators (Apt, Ste, Fl) and street suffixes according to USPS CASS standards.

Are the Michigan addresses generated on this page real places?

No. All street numbers, recipient names, and telephone numbers generated for Michigan are entirely synthetic and randomized for software testing, database seed scripts, and form validation. They use Michigan ZIP codes from public USPS data and real city names, but they do not correspond to real individuals or private residences.

Random Michigan Address Generator

These addresses are randomly generated for software testing. They are not real people’s details: the street number, unit and recipient name are invented, and no record is checked for deliverability.

Randomly generated Michigan mailing addresses for software testing, form validation and staging data. Each record pairs a real Michigan city with a ZIP prefix that serves it and the county that city sits in, then adds a street number, a secondary unit designator and a recipient name that are invented.

Official Michigan Postal & Geographic Reference Specifications

Geographic & Postal Parameter	Official State Specification	Standardization Reference
Postal State Abbreviation	MI	USPS Publication 28 & ISO 3166-2:US
5-Digit ZIP Prefix Range	480xx–499xx	USPS prefix-to-state assignment
Administrative Jurisdictions	83 Total Counties	US Census Bureau regional boundaries
Active Area Codes (NANPA)	`231, 248, 269, 313, 517, 586, 616, 679, 734, 810, 906, 947, 989` (13 total)	North American Numbering Plan Administrator
State Capital	Lansing	US Census Bureau
Primary Time Zone	America/Detroit Timezone	IANA time zone database

Michigan Postal Geography & Key Cities

ZIP codes and Sectional Center Facilities are derived from public USPS ZIP code data, area codes from the North American Numbering Plan, and county names from US Census Bureau records. Street numbers and recipient names are synthetic, and nothing is checked against an address-verification service.

Cities the generator draws from:

Detroit
Grand Rapids
Warren
Sterling Heights
Ann Arbor
Lansing

Key Counties & Administrative Jurisdictions

County boundaries determine local sales tax jurisdictions in Michigan:

Wayne County
Oakland County
Macomb County
Kent County
Washtenaw County

Michigan Area Codes (MI)

Generated phone numbers use the area codes listed in the reference table above, paired with a 555 exchange so no number can reach a real line. Generate Michigan phone numbers.

Postal Delivery Standards & Format Nuances in Michigan

Detroit metropolitan area's historic 'Mile Road' grid system (e.g., 8 Mile Rd, 16 Mile / Big Beaver Rd) extending north from Campus Martius in Detroit.
Geographic and telecom separation of the Upper Peninsula (UP) using area code 906 and distinct 498xx–499xx postal routes.

Michigan Address Examples in USPS Publication 28 Format

Residential Delivery Point:
100 Main St, Apt 4B Detroit, MI 48201-1204

Commercial / Multi-Unit Delivery Point:
Michigan Logistics & Software Corp 500 Enterprise Way, Suite 300 Grand Rapids, MI 49503-4810

Frequently Asked Questions about Michigan Addresses

What ZIP codes does Michigan use for mail and package delivery?: Michigan (MI) operates within the 5-digit ZIP prefix range 480xx–499xx. Mail routed to state capital Lansing and key regional centers such as Detroit, Grand Rapids, Warren adheres to these official USPS boundaries.
Which telephone area codes are valid for Michigan?: Michigan is served by 13 active North American Numbering Plan (NANPA) area codes: 231, 248, 269, 313, 517, 586, 616, 679, 734, 810, 906, 947, 989. Synthetic telephone numbers for Michigan use those area codes with a 555 exchange, which is reserved for fictitious use.
How many counties are in Michigan?: Michigan is divided into 83 counties, including major administrative regions such as Wayne, Oakland, Macomb, Kent. Generated street addresses use those names.
What postal formatting conventions and addressing quirks are unique to Michigan?: Detroit metropolitan area's historic 'Mile Road' grid system (e.g., 8 Mile Rd, 16 Mile / Big Beaver Rd) extending north from Campus Martius in Detroit. Geographic and telecom separation of the Upper Peninsula (UP) using area code 906 and distinct 498xx–499xx postal routes. All addresses generated on this platform format secondary unit designators (Apt, Ste, Fl) and street suffixes according to USPS CASS standards.
Are the Michigan addresses generated on this page real places?: No. All street numbers, recipient names, and telephone numbers generated for Michigan are entirely synthetic and randomized for software testing, database seed scripts, and form validation. They use Michigan ZIP codes from public USPS data and real city names, but they do not correspond to real individuals or private residences.

Nearby & Bordering States

Explore test address generators for states sharing a geographic border with MI:

Michigan ZIP Prefixes

The first three digits of a ZIP code place an address within Michigan. These are the prefixes assigned to the state:

480xx, 481xx, 482xx, 483xx, 488xx, 489xx, 495xx

Which processing facility sorts a given prefix is set by the current USPS labeling list L005 and changes as processing is consolidated, so it is not reproduced here. Look up a ZIP prefix to see its state and generate ZIP codes inside it.