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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/53549

53549

ZIP 53549 is Jefferson, Wisconsin, in Jefferson County; area code 920; Central time.

Type
Standard
Time zone
America/Chicago
County
Jefferson
Population
9,873
Coordinates
42.9845, -88.7656
☼ Live from 53549 — Jefferson, WI

Weather right now

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Local time: —

Where 53549 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 53549
  • 🔢 Type 53549 into a pocket calculator and turn it upside down: GhSES — not quite a word, sorry.
  • ➕ 53549 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101000100101101
  • 🏠 Its numerical neighbours: 53548 (Janesville, WI, 28 mi away) and 53550 (Juda, WI, 47 mi away).
  • 🔄 Backwards, 53549 becomes 94535 — and that is a real ZIP code: Travis Afb, CA, 1,758 miles away.
  • 👥 30 other ZIP codes are made of exactly the same digits (35459, 35549, 35594, 35954, 39455, 45359, …). The farthest-flung twin is 95534 in Cutten, CA, 1,814 miles away.
  • 🧭 Farther north than 82% of all ZIP codes, and farther west than 53%.
  • 🎯553 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 53549 and you would come out at 42.98°S, 91.23°E — 1,093 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
  • 📏 At 71.1 square miles of land, 53549 is bigger than 69% of ZIP codes — room for about 54 Central Parks.
🌙 The sky over 53549 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population9,873This ZIP9,873
Households4,292This ZIP4,292
Housing units4,593This ZIP4,593
Median age44.1This ZIP44.1Wisconsin40.2US 38.9
Median household income$80,101This ZIP$80,101Wisconsin$77,485US $80,734
Median home value$262,200This ZIP$262,200Wisconsin$266,500US $332,700
Median gross rent$1,066This ZIP$1,066Wisconsin$1,087US $1,413
Bachelor's degree or higher22.8%This ZIP22.8%
Mean commute25.1 minThis ZIP25.1 min
Population density138.8 / sq miThis ZIP138.8 / sq mi

Business and tax activity

Business establishments248This ZIP248
Employees2,908This ZIP2,908
Annual payroll$127,085,000This ZIP$127,085,000
Tax returns filed5,220This ZIP5,220
Total adjusted gross income$344,676,000This ZIP$344,676,000

Land area

Land area71.11 sq miThis ZIP71.11 sq mi
Water area0.93 sq miThis ZIP0.93 sq mi

Other place names in 53549

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

ZIP codes near 53549

ZIPCityDistance
53137 Helenville, WI 5.1 mi
53038 Johnson Creek, WI 7.0 mi
53538 Fort Atkinson, WI 7.5 mi
53178 Sullivan, WI 9.1 mi
53551 Lake Mills, WI 10.0 mi
53156 Palmyra, WI 11.1 mi
53094 Watertown, WI 11.2 mi
53190 Whitewater, WI 12.3 mi
53523 Cambridge, WI 13.3 mi
53118 Dousman, WI 13.9 mi

Find every ZIP code within 10 miles of 53549 →

Questions about this ZIP code

Where is ZIP code 53549?

53549 is in Jefferson, Wisconsin, in Jefferson County, part of the Watertown-Fort Atkinson, WI micropolitan area. Its published point location is 42.9845, -88.7656.

What county is 53549 in?

53549 lies in Jefferson County.

What area code is 53549?

Jefferson uses area code 920, from NANPA's telephone records.

What time zone is 53549 in?

53549 uses America/Chicago.

How many people live in 53549?

About 9,873 people live in ZIP code 53549, in 4,292 households, at 138.8 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 53549?

$80,101 a year, against $77,485 across Wisconsin.

What ZIP codes are near 53549?

The closest are 53137 (5.1 mi), 53038 (7 mi), 53538 (7.5 mi), 53178 (9.1 mi) and 53551 (10 mi).

Is 53549 a PO Box ZIP code?

53549 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “53549 ZIP Code — Jefferson, Wisconsin (Jefferson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/53549

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