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zipcodes.pro — ZIP/51108

51108

ZIP 51108 is in Sioux City, Iowa, mostly in Plymouth County; area code 712; Central time. Sioux City has 9 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
County
Plymouth +1 more
Metro area
Le Mars, IA
Population
5,960
Coordinates
42.5660, -96.3525
☼ Live from 51108 — Sioux City, IA

Weather right now

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Local time: —

Where 51108 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 51108
  • 🔢 Type 51108 into a pocket calculator and turn it upside down: BOIIS — not quite a word, sorry.
  • ➕ As a number, 51,108 = 2 × 2 × 3 × 4259. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100011110100100
  • 🏠 Its numerical neighbours: 51106 (Sioux City, IA, 7 mi away) and 51109 (Sioux City, IA, 7 mi away).
  • 🔄 Backwards, 51108 becomes 80115, which is not a ZIP code at all.
  • 👥 25 other ZIP codes are made of exactly the same digits (01518, 01581, 01815, 01851, 08511, 10158, …). The farthest-flung twin is 01815 in Woburn, MA, 1,279 miles away.
  • 🧭 Farther north than 80% of all ZIP codes, and farther west than 72%.
  • 🎯222 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 51108 and you would come out at 42.57°S, 83.65°E — 795 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 19m of daylight. Shortest: 9h 03m.
  • 📏 At 46.0 square miles of land, 51108 is bigger than 57% of ZIP codes — room for about 35 Central Parks.
🌙 The sky over 51108 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population5,960This ZIP5,960
Households2,160This ZIP2,160
Housing units2,160This ZIP2,160
Median age37.6This ZIP37.6Iowa38.6US 38.9
Median household income$81,205This ZIP$81,205Iowa$75,059US $80,734
Median home value$169,700This ZIP$169,700Iowa$208,000US $332,700
Median gross rent$1,350This ZIP$1,350Iowa$972US $1,413
Bachelor's degree or higher28.7%This ZIP28.7%
Mean commute18.4 minThis ZIP18.4 min
Population density129.6 / sq miThis ZIP129.6 / sq mi

Business and tax activity

Business establishments132This ZIP132
Employees1,415This ZIP1,415
Annual payroll$53,972,000This ZIP$53,972,000
Tax returns filed2,700This ZIP2,700
Total adjusted gross income$225,111,000This ZIP$225,111,000

Land area

Land area46.00 sq miThis ZIP46.00 sq mi
Water area0.12 sq miThis ZIP0.12 sq mi

Counties 51108 spans

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

CountyShare of this ZIP
Plymouth County 53.3%
Woodbury County 46.8%

Other place names in 51108

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

ZIP codes near 51108

ZIPCityDistance
51104 Sioux City, IA 3.4 mi
51105 Sioux City, IA 4.1 mi
51101 Sioux City, IA 5.4 mi
51103 Sioux City, IA 5.9 mi
51024 Hinton, IA 6.2 mi
51109 Sioux City, IA 6.7 mi
51106 Sioux City, IA 7.4 mi
57049 North Sioux City, SD 8.5 mi
68776 South Sioux City, NE 8.8 mi
51030 Lawton, IA 9.6 mi

Find every ZIP code within 10 miles of 51108 →

Questions about this ZIP code

Where is ZIP code 51108?

51108 is in Sioux City, Iowa, in Plymouth County, part of the Le Mars, IA micropolitan area. Its published point location is 42.5660, -96.3525.

What county is 51108 in?

51108 spans 2 counties: Plymouth County and Woodbury County. Most of it falls in Plymouth 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 51108?

Sioux City uses area code 712, from NANPA's telephone records.

What time zone is 51108 in?

51108 uses America/Chicago.

How many people live in 51108?

About 5,960 people live in ZIP code 51108, in 2,160 households, at 129.6 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 51108?

$81,205 a year, against $75,059 across Iowa.

What ZIP codes are near 51108?

The closest are 51104 (3.4 mi), 51105 (4.1 mi), 51101 (5.4 mi), 51103 (5.9 mi) and 51024 (6.2 mi).

Is 51108 a PO Box ZIP code?

51108 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “51108 ZIP Code — Sioux City, Iowa (Plymouth County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51108

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