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zipcodes.pro — ZIP/55781

55781

ZIP 55781 is Side Lake, Minnesota, mostly in Itasca County; area code 218; Central time.

Type
Standard
Time zone
America/Chicago
County
Itasca +1 more
Metro area
Grand Rapids, MN
Population
821
Coordinates
47.6809, -93.0651
☼ Live from 55781 — Side Lake, MN

Weather right now

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Local time: —

Where 55781 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 55781
  • 🔢 Type 55781 into a pocket calculator and turn it upside down: IBLSS — not quite a word, sorry.
  • ➕ As a number, 55,781 = 11 × 11 × 461. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101100111100101
  • 🏠 Its numerical neighbours: 55780 (Sawyer, MN, 72 mi away) and 55782 (Soudan, MN, 41 mi away).
  • 🔄 Backwards, 55781 becomes 18755, which is not a ZIP code at all.
  • 👥 18 other ZIP codes are made of exactly the same digits (15758, 15857, 17585, 17855, 51578, 55187, …). The farthest-flung twin is 78551 in Harlingen, TX, 1,503 miles away.
  • 🧭 Farther north than 97% of all ZIP codes, and farther west than 63%.
  • 🎯608 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 55781 and you would come out at 47.68°S, 86.93°E — 772 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 16h 00m of daylight. Shortest: 8h 25m.
  • 📏 At 81.4 square miles of land, 55781 is bigger than 73% of ZIP codes — room for about 62 Central Parks.
🌙 The sky over 55781 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population821This ZIP821
Households331This ZIP331
Housing units850This ZIP850
Median age60.2This ZIP60.2Minnesota38.8US 38.9
Median household income$101,406This ZIP$101,406Minnesota$89,062US $80,734
Median home value$392,900This ZIP$392,900Minnesota$329,300US $332,700
Median gross rent$1,313This ZIP$1,313Minnesota$1,280US $1,413
Bachelor's degree or higher37.0%This ZIP37.0%
Mean commute37.0 minThis ZIP37.0 min
Population density10.1 / sq miThis ZIP10.1 / sq mi

Business and tax activity

Business establishments7This ZIP7
Employees37This ZIP37
Annual payroll$865,000This ZIP$865,000
Tax returns filed410This ZIP410
Total adjusted gross income$37,012,000This ZIP$37,012,000

Land area

Land area81.43 sq miThis ZIP81.43 sq mi
Water area5.28 sq miThis ZIP5.28 sq mi

Counties 55781 spans

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

CountyShare of this ZIP
Itasca County 56.2%
St. Louis County 43.8%

ZIP codes near 55781

ZIPCityDistance
55719 Chisholm, MN 13.5 mi
55723 Cook, MN 14.7 mi
55769 Nashwauk, MN 14.9 mi
55703 Angora, MN 15.0 mi
55710 Britt, MN 17.2 mi
55747 Hibbing, MN 18.5 mi
55713 Buhl, MN 19.3 mi
55753 Keewatin, MN 19.6 mi
55758 Kinney, MN 20.1 mi
55768 Mountain Iron, MN 21.3 mi

Find every ZIP code within 10 miles of 55781 →

Questions about this ZIP code

Where is ZIP code 55781?

55781 is in Side Lake, Minnesota, in Itasca County, part of the Grand Rapids, MN micropolitan area. Its published point location is 47.6809, -93.0651.

What county is 55781 in?

55781 spans 2 counties: Itasca County and St. Louis County. Most of it falls in Itasca 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 55781?

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

What time zone is 55781 in?

55781 uses America/Chicago.

How many people live in 55781?

About 821 people live in ZIP code 55781, in 331 households, at 10.1 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 55781?

$101,406 a year, against $89,062 across Minnesota.

What ZIP codes are near 55781?

The closest are 55719 (13.5 mi), 55723 (14.7 mi), 55769 (14.9 mi), 55703 (15 mi) and 55710 (17.2 mi).

Is 55781 a PO Box ZIP code?

55781 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “55781 ZIP Code — Side Lake, Minnesota (Itasca County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/55781

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