Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/56684

56684

ZIP 56684 is Trail, Minnesota, mostly in Polk County; area code 218; Central time.

Type
Standard
Time zone
America/Chicago
County
Polk +2 more
Metro area
Grand Forks, ND-MN
Population
280
Coordinates
47.8702, -95.6994
☼ Live from 56684 — Trail, MN

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 56684 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 56684
  • 🔢 Type 56684 into a pocket calculator and turn it upside down: hBggS — not quite a word, sorry.
  • ➕ As a number, 56,684 = 2 × 2 × 37 × 383. Its digits add up to 29, a total 1,296 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101110101101100
  • 🏠 Its numerical neighbours: 56683 (Tenstrike, MN, 45 mi away) and 56685 (Waskish, MN, 60 mi away).
  • 🔄 Backwards, 56684 becomes 48665, which is not a ZIP code at all.
  • 👥 23 other ZIP codes are made of exactly the same digits (45686, 45866, 46856, 46865, 48656, 56468, …). The farthest-flung twin is 85646 in Tubac, AZ, 1,382 miles away.
  • 🧭 Farther north than 97% of all ZIP codes, and farther west than 70%.
  • 🎯574 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 56684 and you would come out at 47.87°S, 84.30°E — 650 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 16h 02m of daylight. Shortest: 8h 23m.
  • 📏 At 123.6 square miles of land, 56684 is bigger than 83% of ZIP codes — room for about 94 Central Parks.
🌙 The sky over 56684 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population280This ZIP280
Households103This ZIP103
Housing units167This ZIP167
Median age40.0This ZIP40.0Minnesota38.8US 38.9
Median household income$73,750This ZIP$73,750Minnesota$89,062US $80,734
Median home value$138,800This ZIP$138,800Minnesota$329,300US $332,700
Bachelor's degree or higher13.9%This ZIP13.9%
Mean commute30.3 minThis ZIP30.3 min
Population density2.3 / sq miThis ZIP2.3 / sq mi

Business and tax activity

Business establishments3This ZIP3
Employees6This ZIP6
Annual payroll$92,000This ZIP$92,000
Tax returns filed170This ZIP170
Total adjusted gross income$10,289,000This ZIP$10,289,000

Land area

Land area123.59 sq miThis ZIP123.59 sq mi
Water area0.22 sq miThis ZIP0.22 sq mi

Counties 56684 spans

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

CountyShare of this ZIP
Polk County 62.1%
Pennington County 33.0%
Red Lake County 4.9%

Other place names in 56684

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

ZIP codes near 56684

ZIPCityDistance
56646 Gully, MN 6.8 mi
56742 Oklee, MN 7.3 mi
56644 Gonvick, MN 10.7 mi
56715 Brooks, MN 12.4 mi
56748 Plummer, MN 14.7 mi
56556 Mcintosh, MN 16.6 mi
56671 Redlake, MN 17.5 mi
56725 Goodridge, MN 18.9 mi
56634 Clearbrook, MN 19.2 mi
56535 Erskine, MN 20.7 mi

Find every ZIP code within 10 miles of 56684 →

Questions about this ZIP code

Where is ZIP code 56684?

56684 is in Trail, Minnesota, in Polk County, part of the Grand Forks, ND-MN metropolitan area. Its published point location is 47.8702, -95.6994.

What county is 56684 in?

56684 spans 3 counties: Polk County, Pennington County and Red Lake County. Most of it falls in Polk 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 56684?

Trail uses area code 218, from NANPA's telephone records.

What time zone is 56684 in?

56684 uses America/Chicago.

How many people live in 56684?

About 280 people live in ZIP code 56684, in 103 households, at 2.3 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 56684?

$73,750 a year, against $89,062 across Minnesota.

What ZIP codes are near 56684?

The closest are 56646 (6.8 mi), 56742 (7.3 mi), 56644 (10.7 mi), 56715 (12.4 mi) and 56748 (14.7 mi).

Is 56684 a PO Box ZIP code?

56684 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “56684 ZIP Code — Trail, Minnesota (Polk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/56684

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/56684.json

Underlying data is public domain or openly licensed — sources, vintages and licences.