53538
ZIP 53538 is Fort Atkinson, Wisconsin, mostly in Jefferson County; area code 920; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Jefferson +1 more
- Metro area
- Watertown-Fort Atkinson, WI
- Population
- 18,813
- Coordinates
- 42.9089, -88.8716
Weather right now
Asking the National Weather Service…
Where 53538 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.
- 🔢 Type 53538 into a pocket calculator and turn it upside down: BESES — not quite a word, sorry.
- ➕ As a number, 53,538 = 2 × 3 × 8923. Its digits add up to 24, a total 2,425 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1101000100100010 - 🏠 Its numerical neighbours: 53537 (Footville, WI, 24 mi away) and 53540 (Gotham, WI, 75 mi away).
- 🔄 Backwards, 53538 becomes 83535 — and that is a real ZIP code: Juliaetta, ID, 1,383 miles away.
- 👥 17 other ZIP codes are made of exactly the same digits (33558, 33585, 33855, 38355, 38553, 53583, …). The farthest-flung twin is 85353 in Tolleson, AZ, 1,424 miles away.
- 🧭 Farther north than 82% of all ZIP codes, and farther west than 53%.
- 🎯546 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 53538 and you would come out at 42.91°S, 91.13°E — 1,091 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 21m of daylight. Shortest: 9h 01m.
- 📏 At 97.1 square miles of land, 53538 is bigger than 77% of ZIP codes — room for about 74 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 18,813This ZIP18,813 |
|---|---|
| Households | 7,960This ZIP7,960 |
| Housing units | 8,373This ZIP8,373 |
| Median age | 44.6This ZIP44.6Wisconsin40.2US 38.9 |
| Median household income | $82,783This ZIP$82,783Wisconsin$77,485US $80,734 |
| Median home value | $245,900This ZIP$245,900Wisconsin$266,500US $332,700 |
| Median gross rent | $955This ZIP$955Wisconsin$1,087US $1,413 |
| Bachelor's degree or higher | 26.6%This ZIP26.6% |
| Mean commute | 20.3 minThis ZIP20.3 min |
| Population density | 193.7 / sq miThis ZIP193.7 / sq mi |
Business and tax activity
| Business establishments | 474This ZIP474 |
|---|---|
| Employees | 7,820This ZIP7,820 |
| Annual payroll | $402,167,000This ZIP$402,167,000 |
| Tax returns filed | 9,410This ZIP9,410 |
| Total adjusted gross income | $702,439,000This ZIP$702,439,000 |
Land area
| Land area | 97.12 sq miThis ZIP97.12 sq mi |
|---|---|
| Water area | 16.98 sq miThis ZIP16.98 sq mi |
Counties 53538 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Jefferson County | 98.4% |
| Rock County | 1.7% |
Other place names in 53538
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 53538
| ZIP | City | Distance |
|---|---|---|
53549 | Jefferson, WI | 7.5 mi |
53563 | Milton, WI | 9.4 mi |
53523 | Cambridge, WI | 9.5 mi |
53190 | Whitewater, WI | 9.8 mi |
53534 | Edgerton, WI | 11.7 mi |
53551 | Lake Mills, WI | 12.0 mi |
53137 | Helenville, WI | 12.3 mi |
53038 | Johnson Creek, WI | 12.8 mi |
53156 | Palmyra, WI | 14.4 mi |
53545 | Janesville, WI | 14.5 mi |
Find every ZIP code within 10 miles of 53538 →
Questions about this ZIP code
Where is ZIP code 53538?
53538 is in Fort Atkinson, Wisconsin, in Jefferson County, part of the Watertown-Fort Atkinson, WI micropolitan area. Its published point location is 42.9089, -88.8716.
What county is 53538 in?
53538 spans 2 counties: Jefferson County and Rock County. Most of it falls in Jefferson County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 53538?
Fort Atkinson uses area code 920, from NANPA's telephone records.
What time zone is 53538 in?
53538 uses America/Chicago.
How many people live in 53538?
About 18,813 people live in ZIP code 53538, in 7,960 households, at 193.7 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 53538?
$82,783 a year, against $77,485 across Wisconsin.
What ZIP codes are near 53538?
The closest are 53549 (7.5 mi), 53563 (9.4 mi), 53523 (9.5 mi), 53190 (9.8 mi) and 53534 (11.7 mi).
Is 53538 a PO Box ZIP code?
53538 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “53538 ZIP Code — Fort Atkinson, Wisconsin (Jefferson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/53538
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/53538.json Underlying data is public domain or openly licensed — sources, vintages and licences.