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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/60304

60304

ZIP 60304 is in Oak Park, Illinois, in Cook County; area code 708; Central time. Oak Park has 4 ZIP codes; the others are 60301, 60302 and 60303.

Type
Standard
Time zone
America/Chicago
County
Cook
Population
16,955
Coordinates
41.8725, -87.7893
☼ Live from 60304 — Oak Park, IL

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Local time: —

Where 60304 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 60304
  • 🔢 Type 60304 into a pocket calculator and turn it upside down: hOEOg — not quite a word, sorry.
  • ➕ As a number, 60,304 = 2 × 2 × 2 × 2 × 3769. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110101110010000
  • 🏠 Its numerical neighbours: 60303 (Oak Park, IL, 1 mi away) and 60305 (River Forest, IL, 2 mi away).
  • 🔄 Backwards, 60304 becomes 40306, which is not a ZIP code at all.
  • 👥 30 other ZIP codes are made of exactly the same digits (03046, 03064, 03604, 04063, 04360, 04630, …). The farthest-flung twin is 34006 in APO AA, a military post office, 2,331 miles away.
  • 🧭 Farther north than 74% of all ZIP codes, and farther west than 50%.
  • 🎯581 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 60304 and you would come out at 41.87°S, 92.21°E — 1,176 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 14m of daylight. Shortest: 9h 08m.
  • 📏 At 1.6 square miles of land, 60304 is bigger than 10% of ZIP codes — room for about 1.2 Central Parks.
🌙 The sky over 60304 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population16,955This ZIP16,955
Households6,493This ZIP6,493
Housing units6,887This ZIP6,887
Median age39.2This ZIP39.2Illinois39.0US 38.9
Median household income$136,178This ZIP$136,178Illinois$83,390US $80,734
Median home value$466,700This ZIP$466,700Illinois$263,300US $332,700
Median gross rent$1,388This ZIP$1,388Illinois$1,274US $1,413
Bachelor's degree or higher73.7%This ZIP73.7%
Mean commute30.4 minThis ZIP30.4 min
Population density10,938.7 / sq miThis ZIP10,938.7 / sq mi

Business and tax activity

Business establishments340This ZIP340
Employees2,964This ZIP2,964
Annual payroll$171,046,000This ZIP$171,046,000
Tax returns filed7,940This ZIP7,940
Total adjusted gross income$1,054,232,000This ZIP$1,054,232,000

Land area

Land area1.55 sq miThis ZIP1.55 sq mi
Water area0.00 sq mi

Other place names in 60304

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

ZIP codes near 60304

ZIPCityDistance
60303 Oak Park, IL 0.9 mi
60301 Oak Park, IL 1.2 mi
60130 Forest Park, IL 1.5 mi
60302 Oak Park, IL 1.5 mi
60644 Chicago, IL 1.8 mi
60305 River Forest, IL 2.2 mi
60141 Hines, IL 2.7 mi
60804 Cicero, IL 2.7 mi
60402 Berwyn, IL 2.7 mi
60153 Maywood, IL 2.9 mi

Find every ZIP code within 10 miles of 60304 →

Questions about this ZIP code

Where is ZIP code 60304?

60304 is in Oak Park, Illinois, in Cook County, part of the Chicago-Naperville-Elgin, IL-IN metropolitan area. Its published point location is 41.8725, -87.7893.

What county is 60304 in?

60304 lies in Cook County.

What area code is 60304?

Oak Park uses area code 708, from NANPA's telephone records.

What time zone is 60304 in?

60304 uses America/Chicago.

How many people live in 60304?

About 16,955 people live in ZIP code 60304, in 6,493 households, at 10,938.7 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 60304?

$136,178 a year, against $83,390 across Illinois.

What ZIP codes are near 60304?

The closest are 60303 (0.9 mi), 60301 (1.2 mi), 60130 (1.5 mi), 60302 (1.5 mi) and 60644 (1.8 mi).

Is 60304 a PO Box ZIP code?

60304 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “60304 ZIP Code — Oak Park, Illinois (Cook County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/60304

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