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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 — ZIP/48309

48309

ZIP 48309 is in Rochester, Michigan, in Oakland County; area codes 248 and 947; Eastern time. Rochester has 4 ZIP codes; the others are 48306, 48307 and 48308.

Type
Standard
Time zone
America/Detroit
County
Oakland
Population
30,685
Coordinates
42.6572, -83.1866
☼ Live from 48309 — Rochester, MI

Weather right now

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Local time: —

Where 48309 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 48309
  • 🔢 Type 48309 into a pocket calculator and turn it upside down: GOEBh — not quite a word, sorry.
  • ➕ As a number, 48,309 = 3 × 16103. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011110010110101
  • 🏠 Its numerical neighbours: 48308 (Rochester, MI, 3 mi away) and 48310 (Sterling Heights, MI, 9 mi away).
  • 🔄 Backwards, 48309 becomes 90384, which is not a ZIP code at all.
  • 👥 39 other ZIP codes are made of exactly the same digits (03849, 03894, 04938, 04983, 08349, 09834, …). The farthest-flung twin is 09834 in FPO AE, a military post office, 6,844 miles away.
  • 🧭 Farther north than 80% of all ZIP codes, and farther east than 62%.
  • 🎯822 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 48309 and you would come out at 42.66°S, 96.81°E — 1,277 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 19m of daylight. Shortest: 9h 02m.
  • 📏 At 15.6 square miles of land, 48309 is bigger than 33% of ZIP codes — room for about 12 Central Parks.
🌙 The sky over 48309 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population30,685This ZIP30,685
Households11,278This ZIP11,278
Housing units11,847This ZIP11,847
Median age42.5This ZIP42.5Michigan40.2US 38.9
Median household income$121,007This ZIP$121,007Michigan$72,875US $80,734
Median home value$424,600This ZIP$424,600Michigan$231,600US $332,700
Median gross rent$1,686This ZIP$1,686Michigan$1,129US $1,413
Bachelor's degree or higher64.4%This ZIP64.4%
Mean commute22.6 minThis ZIP22.6 min
Population density1,971.7 / sq miThis ZIP1,971.7 / sq mi

Business and tax activity

Business establishments882This ZIP882
Employees16,075This ZIP16,075
Annual payroll$1,138,940,000This ZIP$1,138,940,000
Tax returns filed14,580This ZIP14,580
Total adjusted gross income$1,897,005,000This ZIP$1,897,005,000

Land area

Land area15.56 sq miThis ZIP15.56 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Other place names in 48309

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 48309

ZIPCityDistance
48308 Rochester, MI 3.1 mi
48307 Rochester, MI 3.3 mi
48326 Auburn Hills, MI 3.6 mi
48098 Troy, MI 4.1 mi
48342 Pontiac, MI 4.6 mi
48099 Troy, MI 4.9 mi
48085 Troy, MI 4.9 mi
48306 Rochester, MI 5.0 mi
48340 Pontiac, MI 5.3 mi
48304 Bloomfield Hills, MI 5.3 mi

Find every ZIP code within 10 miles of 48309 →

Questions about this ZIP code

Where is ZIP code 48309?

48309 is in Rochester, Michigan, in Oakland County, part of the Detroit-Warren-Dearborn, MI metropolitan area. Its published point location is 42.6572, -83.1866.

What county is 48309 in?

48309 lies in Oakland County.

What area code is 48309?

Rochester uses area codes 248 and 947, from NANPA's telephone records.

What time zone is 48309 in?

48309 uses America/Detroit.

How many people live in 48309?

About 30,685 people live in ZIP code 48309, in 11,278 households, at 1,971.7 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 48309?

$121,007 a year, against $72,875 across Michigan.

What ZIP codes are near 48309?

The closest are 48308 (3.1 mi), 48307 (3.3 mi), 48326 (3.6 mi), 48098 (4.1 mi) and 48342 (4.6 mi).

Is 48309 a PO Box ZIP code?

48309 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “48309 ZIP Code — Rochester, Michigan (Oakland County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/48309

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