Macomb County at a glance
| Item | Detail |
|---|---|
| ZIP codes | 48088, 48089, 48090, 48091, 48092, 48093, 48310, 48311, 48312, 48313, 48314, 48315, 48316, 48317 |
| Trades | defense and armored vehicle manufacturing; vehicle assembly; auto engineering; machining and gears |
| Noted | Seat Mount Clemens; 881,217 people at the 2020 census. Took 65% of Michigan's federal defense contract dollars in 2024; I-94, I-696, M-53 and M-59 cross it. |
Freeways, rail and airports in Macomb County
- I-94 serves the county on the way to Port Huron.
- I-696 runs east and west from the I-96, I-275 and M-5 junction to I-94. M-3 (Gratiot Avenue) runs from Marysville to downtown Detroit, and M-53 is known as the Van Dyke Freeway.
Macomb County in brief
- Macomb County is the third most populous county in Michigan and holds 27 cities, townships and villages, three of them among the ten most populous municipalities in the state.
- Its largest community is Warren, and most of its population lives south of Hall Road (M-59).
Cities in Macomb County
| City | ZIPs | Trades |
|---|---|---|
| Warren | 7 | GM Technical Center; vehicle assembly; Army TACOM / Detroit Arsenal |
| Sterling Heights | 5 | vehicle assembly; defense vehicles |
| Shelby Township | 3 | defense transmissions and gears |
Dense parts decide the box
The county has an employment concentration of 6.72 in military armored vehicle and tank component manufacturing. A gear or a transmission part reaches a box weight limit long before it fills the volume, so the useful boxes are short, full flap and 4-wall or 5-wall. See defense and heavy parts.
Where is the county seat?
Do you supply defense contractors?
Warren
Warren has 7 ZIP codes (48088, 48089, 48090, 48091, 48092, 48093, 48397). 2022 employers: GM 23,823, federal government 7,800, Stellantis 5,523, Lipari Foods 1,300. Trades: GM Technical Center; vehicle assembly; Army TACOM / Detroit Arsenal; food distribution.
I-696 (the Walter P. Reuther Freeway) cuts east and west through Warren. M-53 (Van Dyke Avenue) roughly bisects the city, M-97 (Groesbeck Highway) lies in the southeast, and M-102 (8 Mile Road) is the southern border and the Macomb-Wayne county line. Conrail Shared Assets Operations provides freight rail service to Warren. Warren is an inner-ring suburb that borders Detroit to the north, about 13 miles north of downtown Detroit. (Wikipedia, Warren, Michigan, retrieved 2026-11-11)
Sterling Heights
Sterling Heights has 5 ZIP codes (48310, 48311, 48312, 48313, 48314). Sterling Heights Assembly builds the Ram 1500 in 5 million sq ft with 7,008 workers (2022). Trades: vehicle assembly; defense vehicles.
M-53 (Van Dyke Avenue or the Van Dyke Freeway) leads north toward the Thumb, and M-59 (Hall Road once the freeway ends) is the east-west connector across Macomb County and on to Pontiac, the main northern link between Macomb and Oakland counties. Chrysler opened the plant in 1953 under its Missile Division to produce missiles, and Sterling Stamping next door opened in 1965. The US Army operated the plant for a number of years, and Chrysler bought it in 2010 from Old Carco LLC for $20 million, announcing an $850 million investment that October and breaking ground on a new paint shop in June 2011. (Wikipedia, Sterling Heights, Michigan, retrieved 2026-11-11)
Shelby Township
Shelby Township has 3 ZIP codes (48315, 48316, 48317). SAPA Transmission announced a $163 million, 200,000 sq ft plant with at least 328 jobs in 2026. Trades: defense transmissions and gears.
The township sits on M-53 (Van Dyke Avenue or the Van Dyke Expressway) and M-59 (Hall Road where the expressway ends), the east-west connector from just north of Mount Clemens through Utica to Pontiac. Shelby Charter Township is a northern suburb of Detroit with 79,408 people at the 2020 census, up from 73,804 in 2010, and is one of the fastest-growing communities in Metro Detroit. Shelby Township was set off by the Michigan Territorial Legislature on April 12, 1827, and once included what is now Sterling Heights. (Wikipedia, Shelby Charter Township, Michigan, retrieved 2026-11-11)
Choosing a box in Macomb County
Start from the city nearest your dock, then use the spec finder.
- Wikipedia, Macomb County, Michigan, retrieved 2026-11-11
- macombgov.org, retrieved 2026-11-11
- Wikipedia, Warren, Michigan, retrieved 2026-11-11
- Wikipedia, Sterling Heights, Michigan, retrieved 2026-11-11
- Wikipedia, Warren Truck Assembly, retrieved 2026-11-11
- Wikipedia, Sterling Heights Assembly, retrieved 2026-11-11
- Wikipedia, Shelby Charter Township, Michigan, retrieved 2026-11-11
- areadevelopment.com, retrieved 2026-11-11