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zipcodes.pro — ZIP/53521

53521

ZIP 53521 is Brooklyn, Wisconsin, mostly in Green County; area code 608; Central time.

Type
Standard
Time zone
America/Chicago
County
Green +2 more
Metro area
Madison, WI
Population
3,640
Coordinates
42.8381, -89.4003
☼ Live from 53521 — Brooklyn, WI

Weather right now

Asking the National Weather Service…

NEXRAD radar
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Local time: —

Where 53521 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 53521
  • 🔢 Type 53521 into a pocket calculator and turn it upside down: IZSES — not quite a word, sorry.
  • ➕ As a number, 53,521 = 13 × 23 × 179. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101000100010001
  • 🏠 Its numerical neighbours: 53520 (Brodhead, WI, 17 mi away) and 53522 (Browntown, WI, 27 mi away).
  • 🔄 Backwards, 53521 becomes 12535, which is not a ZIP code at all.
  • 👥 28 other ZIP codes are made of exactly the same digits (12553, 15235, 15253, 15325, 15352, 15532, …). The farthest-flung twin is 31525 in Brunswick, GA, 905 miles away.
  • 🧭 Farther north than 81% of all ZIP codes, and farther west than 54%.
  • 🎯519 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 53521 and you would come out at 42.84°S, 90.60°E — 1,071 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 59.7 square miles of land, 53521 is bigger than 64% of ZIP codes — room for about 45 Central Parks.
🌙 The sky over 53521 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population3,640This ZIP3,640
Households1,393This ZIP1,393
Housing units1,418This ZIP1,418
Median age42.3This ZIP42.3Wisconsin40.2US 38.9
Median household income$108,036This ZIP$108,036Wisconsin$77,485US $80,734
Median home value$391,100This ZIP$391,100Wisconsin$266,500US $332,700
Median gross rent$1,201This ZIP$1,201Wisconsin$1,087US $1,413
Bachelor's degree or higher35.4%This ZIP35.4%
Mean commute25.5 minThis ZIP25.5 min
Population density61.0 / sq miThis ZIP61.0 / sq mi

Business and tax activity

Business establishments67This ZIP67
Employees266This ZIP266
Annual payroll$12,190,000This ZIP$12,190,000
Tax returns filed1,980This ZIP1,980
Total adjusted gross income$197,300,000This ZIP$197,300,000

Land area

Land area59.68 sq miThis ZIP59.68 sq mi
Water area0.15 sq miThis ZIP0.15 sq mi

Counties 53521 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Green County 50.4%
Dane County 41.1%
Rock County 8.5%

Other place names in 53521

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

ZIP codes near 53521

ZIPCityDistance
53575 Oregon, WI 6.5 mi
53502 Albany, WI 7.7 mi
53536 Evansville, WI 8.6 mi
53508 Belleville, WI 9.1 mi
53589 Stoughton, WI 11.3 mi
53711 Madison, WI 12.0 mi
53558 Mc Farland, WI 12.7 mi
53574 New Glarus, WI 12.8 mi
53570 Monticello, WI 13.4 mi
53593 Verona, WI 13.6 mi

Find every ZIP code within 10 miles of 53521 →

Questions about this ZIP code

Where is ZIP code 53521?

53521 is in Brooklyn, Wisconsin, in Green County, part of the Madison, WI metropolitan area. Its published point location is 42.8381, -89.4003.

What county is 53521 in?

53521 spans 3 counties: Green County, Dane County and Rock County. Most of it falls in Green 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 53521?

Brooklyn uses area code 608, from NANPA's telephone records.

What time zone is 53521 in?

53521 uses America/Chicago.

How many people live in 53521?

About 3,640 people live in ZIP code 53521, in 1,393 households, at 61.0 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 53521?

$108,036 a year, against $77,485 across Wisconsin.

What ZIP codes are near 53521?

The closest are 53575 (6.5 mi), 53502 (7.7 mi), 53536 (8.6 mi), 53508 (9.1 mi) and 53589 (11.3 mi).

Is 53521 a PO Box ZIP code?

53521 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “53521 ZIP Code — Brooklyn, Wisconsin (Green County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/53521

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/53521.json

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