Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — RANKINGS/MI/SMALLEST-AREA

Smallest ZIP Codes in Michigan by Land Area

What this measures. Land area of the Census tabulation area, smallest first. These are almost always dense urban ZIP codes covering a few city blocks. Source: Census Gazetteer, data release 2026-10-12.

# ZIP City County Land area
1 48243 Detroit Wayne 0.01 sq mi
2 49258 Mosherville Hillsdale 0.02 sq mi
3 48233 Detroit Wayne 0.03 sq mi
4 49764 Oden Emmet 0.04 sq mi
5 48143 Lakeland Livingston 0.04 sq mi
6 49263 Norvell Jackson 0.04 sq mi
7 49443 Muskegon Muskegon 0.05 sq mi
8 49075 Nottawa St. Joseph 0.05 sq mi
9 48870 Palo Ionia 0.06 sq mi
10 49434 Macatawa Ottawa 0.09 sq mi
11 49084 Riverside Berrien 0.09 sq mi
12 49409 Ferrysburg Ottawa 0.10 sq mi
13 49784 Kincheloe Chippewa 0.14 sq mi
14 49104 Berrien Springs Berrien 0.17 sq mi
15 48630 Houghton Lake Heights Roscommon 0.19 sq mi
16 48852 Mcbrides Montcalm 0.19 sq mi
17 48862 North Star Gratiot 0.20 sq mi
18 48859 Mount Pleasant Isabella 0.20 sq mi
19 48627 Higgins Lake Roscommon 0.21 sq mi
20 49852 Loretto Dickinson 0.24 sq mi
21 49289 Weston Lenawee 0.24 sq mi
22 49634 Filer City Manistee 0.25 sq mi
23 49074 Nazareth Kalamazoo 0.25 sq mi
24 48440 Hadley Lapeer 0.26 sq mi
25 48411 Atlas Genesee 0.27 sq mi
26 48896 Winn Isabella 0.27 sq mi
27 49430 Lamont Ottawa 0.28 sq mi
28 49722 Conway Emmet 0.40 sq mi
29 48710 University Center Bay 0.42 sq mi
30 49335 Moline Allegan 0.43 sq mi
31 48502 Flint Genesee 0.46 sq mi
32 49458 Walhalla Mason 0.47 sq mi
33 49921 Dodgeville Houghton 0.47 sq mi
34 49027 Breedsville Van Buren 0.48 sq mi
35 48724 Carrollton Saginaw 0.50 sq mi
36 49119 New Troy Berrien 0.51 sq mi
37 49791 Topinabee Cheboygan 0.52 sq mi
38 49626 Eastlake Manistee 0.53 sq mi
39 49942 Kearsarge Houghton 0.55 sq mi
40 49863 Nadeau Menominee 0.56 sq mi
41 48620 Edenville Midland 0.57 sq mi
42 48069 Pleasant Ridge Oakland 0.57 sq mi
43 48874 Pompeii Gratiot 0.58 sq mi
44 48437 Genesee Genesee 0.58 sq mi
45 48139 Hamburg Livingston 0.58 sq mi
46 49440 Muskegon Muskegon 0.61 sq mi
47 48853 Maple Rapids Clinton 0.63 sq mi
48 48816 Cohoctah Livingston 0.67 sq mi
49 48476 Vernon Shiawassee 0.68 sq mi
50 48825 East Lansing Ingham 0.69 sq mi

Showing the top 50 of 992 ZIP codes in Michigan that have this figure and meet the threshold above. 48243 ranks 1st at 0.01 sq mi, against 0.69 sq mi in 50th place.

Other rankings for Michigan

Cite this page

zipcodes.pro. “Smallest ZIP Codes in Michigan by Land Area.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/mi/smallest-area

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