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zipcodes.pro — ZIP/52078

52078

ZIP 52078 is Worthington, Iowa, mostly in Dubuque County; area code 563; Central time.

Type
Standard
Time zone
America/Chicago
County
Dubuque +1 more
Metro area
Dubuque, IA
Population
870
Coordinates
42.3958, -91.1157
☼ Live from 52078 — Worthington, IA

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Local time: —

Where 52078 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 52078
  • 🔢 Type 52078 into a pocket calculator and turn it upside down: BLOZS — not quite a word, sorry.
  • ➕ As a number, 52,078 = 2 × 13 × 2003. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100101101101110
  • 🏠 Its numerical neighbours: 52077 (Volga, IA, 37 mi away) and 52079 (Zwingle, IA, 22 mi away).
  • 🔄 Backwards, 52078 becomes 87025 — and that is a real ZIP code: Jemez Springs, NM, 945 miles away.
  • 👥 56 other ZIP codes are made of exactly the same digits (02857, 02875, 05827, 05872, 07825, 07852, …). The farthest-flung twin is 85072 in Phoenix, AZ, 1,294 miles away.
  • 🧭 Farther north than 78% of all ZIP codes, and farther west than 59%.
  • 🎯427 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 52078 and you would come out at 42.40°S, 88.88°E — 1,015 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 04m.
  • 📏 At 41.5 square miles of land, 52078 is bigger than 54% of ZIP codes — room for about 32 Central Parks.
🌙 The sky over 52078 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population870This ZIP870
Households322This ZIP322
Housing units359This ZIP359
Median age40.4This ZIP40.4Iowa38.6US 38.9
Median household income$97,778This ZIP$97,778Iowa$75,059US $80,734
Median home value$237,500This ZIP$237,500Iowa$208,000US $332,700
Bachelor's degree or higher12.6%This ZIP12.6%
Mean commute35.8 minThis ZIP35.8 min
Population density21.0 / sq miThis ZIP21.0 / sq mi

Business and tax activity

Business establishments22This ZIP22
Employees132This ZIP132
Annual payroll$7,109,000This ZIP$7,109,000
Tax returns filed390This ZIP390
Total adjusted gross income$29,498,000This ZIP$29,498,000

Land area

Land area41.51 sq miThis ZIP41.51 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Counties 52078 spans

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

CountyShare of this ZIP
Dubuque County 64.2%
Delaware County 35.8%

Other place names in 52078

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

ZIP codes near 52078

ZIPCityDistance
52046 Farley, IA 6.1 mi
52040 Dyersville, IA 7.6 mi
52237 Hopkinton, IA 7.9 mi
52033 Cascade, IA 9.9 mi
52045 Epworth, IA 10.3 mi
52041 Earlville, IA 10.4 mi
52223 Delhi, IA 10.7 mi
52036 Delaware, IA 12.7 mi
52310 Monticello, IA 12.8 mi
52065 New Vienna, IA 13.0 mi

Find every ZIP code within 10 miles of 52078 →

Questions about this ZIP code

Where is ZIP code 52078?

52078 is in Worthington, Iowa, in Dubuque County, part of the Dubuque, IA metropolitan area. Its published point location is 42.3958, -91.1157.

What county is 52078 in?

52078 spans 2 counties: Dubuque County and Delaware County. Most of it falls in Dubuque 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 52078?

Worthington uses area code 563, from NANPA's telephone records.

What time zone is 52078 in?

52078 uses America/Chicago.

How many people live in 52078?

About 870 people live in ZIP code 52078, in 322 households, at 21.0 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 52078?

$97,778 a year, against $75,059 across Iowa.

What ZIP codes are near 52078?

The closest are 52046 (6.1 mi), 52040 (7.6 mi), 52237 (7.9 mi), 52033 (9.9 mi) and 52045 (10.3 mi).

Is 52078 a PO Box ZIP code?

52078 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “52078 ZIP Code — Worthington, Iowa (Dubuque County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/52078

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