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 — CITY/MI/FLAT-ROCK

Flat Rock ZIP code, Michigan

The ZIP code for Flat Rock, MI is 48134, and its area code is 734.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
10,340
Area code
734

Mail addressed to Flat Rock uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Flat Rock in numbers

About 10,340 people live in Flat Rock, in 3,924 households. The median household income is $81,585 a year, 12% above the Michigan median of $72,875 (US: $80,734). The median owner-occupied home is valued at $228,800 (about the same as the Michigan median), and median gross rent is $919 a month. The median age is 39.3; 29.5% of adults 25 and over hold a bachelor's degree or higher (32.4% across Michigan); the average commute takes 29 minutes.

Population10,340Flat Rock10,340
Households3,924Flat Rock3,924
Median age39.3Flat Rock39.3Michigan40.2US 38.9
Median household income$81,585Flat Rock$81,585Michigan$72,875US $80,734
Median home value$228,800Flat Rock$228,800Michigan$231,600US $332,700
Median gross rent$919Flat Rock$919Michigan$1,129US $1,413
Bachelor's degree or higher29.5%Flat Rock29.5%Michigan32.4%US 35.7%
Mean commute29.0 minFlat Rock29.0 minMichigan24.2 minUS 26.4 min
Population density1,574 / sq miFlat Rock1,574 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Flat Rock city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Flat Rock

ZIP codes with the USPS city name Flat Rock
ZIP City Type Population Median income Median home
48134 Flat Rock , MI Standard 23,935 $92,076 $276,100

Other ZIP codes overlapping Flat Rock

These ZIP codes cover part of Flat Rock but are addressed as somewhere else.

ZIP codes overlapping Flat Rock
ZIP City Type Population Median income Median home
48173 Rockwood , MI Standard 12,931 $94,094 $244,900

Map of Flat Rock ZIP codes

The ZIP codes of Flat Rock, MI, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Flat Rock

The nearest larger towns are Woodhaven (12,690 people, 3.1 mi), Trenton (18,125 people, 4.9 mi) and Riverview (12,186 people, 6.4 mi).

Towns near Flat Rock
TownPopulationDistance
Rockwood 3,161 2.4 mi
Woodhaven 12,690 3.1 mi
Gibraltar 4,873 3.6 mi
Trenton 18,125 4.9 mi
Riverview 12,186 6.4 mi
Carleton 2,595 6.8 mi
Southgate 29,366 8.1 mi
Taylor 62,081 8.8 mi
Wyandotte 24,489 9.7 mi
Romulus 24,831 10.0 mi
Lincoln Park 39,257 11.0 mi
Allen Park 27,925 11.6 mi
Detroit Beach 2,771 11.9 mi
Ecorse 9,064 12.4 mi

More nearby: every ZIP code in Wayne County · Michigan ZIP codes

Cite this page

zipcodes.pro. “Flat Rock, MI ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mi/flat-rock

Underlying data is public domain or openly licensed — sources, vintages and licences.