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Where 52001 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.
- 🔢 Type 52001 into a pocket calculator and turn it upside down: IOOZS — not quite a word, sorry.
- ➕ As a number, 52,001 = 149 × 349. Its digits add up to 8, a total 251 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100101100100001 - 🏠 Its numerical neighbours: 51656 (Yorktown, IA, 262 mi away) and 52002 (Dubuque, IA, 4 mi away).
- 🔄 Backwards, 52001 becomes 10025 — and that is a real ZIP code: New York, NY, 870 miles away.
- 👥 23 other ZIP codes are made of exactly the same digits (01520, 02051, 02150, 05201, 10025, 10502, …). The farthest-flung twin is 02051 in Marshfield Hills, MA, 1,017 miles away.
- 🧭 Farther north than 79% of all ZIP codes, and farther west than 58%.
- 🎯451 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 52001 and you would come out at 42.55°S, 89.31°E — 1,026 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 18m of daylight. Shortest: 9h 03m.
- 📏 At 26.1 square miles of land, 52001 is bigger than 43% of ZIP codes — room for about 20 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 43,101This ZIP43,101 |
|---|---|
| Households | 18,973This ZIP18,973 |
| Housing units | 20,333This ZIP20,333 |
| Median age | 36.6This ZIP36.6Iowa38.6US 38.9 |
| Median household income | $61,643This ZIP$61,643Iowa$75,059US $80,734 |
| Median home value | $178,000This ZIP$178,000Iowa$208,000US $332,700 |
| Median gross rent | $924This ZIP$924Iowa$972US $1,413 |
| Bachelor's degree or higher | 29.7%This ZIP29.7% |
| Mean commute | 14.5 minThis ZIP14.5 min |
| Population density | 1,649.9 / sq miThis ZIP1,649.9 / sq mi |
Business and tax activity
| Business establishments | 986This ZIP986 |
|---|---|
| Employees | 24,939This ZIP24,939 |
| Annual payroll | $1,483,031,000This ZIP$1,483,031,000 |
| Tax returns filed | 19,480This ZIP19,480 |
| Total adjusted gross income | $1,203,226,000This ZIP$1,203,226,000 |
Land area
| Land area | 26.12 sq miThis ZIP26.12 sq mi |
|---|---|
| Water area | 2.71 sq miThis ZIP2.71 sq mi |
Other place names in 52001
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 52001
| ZIP | City | Distance |
|---|---|---|
52004 | Dubuque, IA | 3.6 mi |
52099 | Dubuque, IA | 3.6 mi |
52002 | Dubuque, IA | 4.3 mi |
53812 | Kieler, WI | 5.2 mi |
53808 | Dickeyville, WI | 8.0 mi |
53824 | Sinsinawa, WI | 8.0 mi |
52073 | Sherrill, IA | 8.1 mi |
52003 | Dubuque, IA | 8.2 mi |
52039 | Durango, IA | 8.4 mi |
53811 | Hazel Green, WI | 8.6 mi |
Find every ZIP code within 10 miles of 52001 →
Questions about this ZIP code
Where is ZIP code 52001?
52001 is in Dubuque, Iowa, in Dubuque County, part of the Dubuque, IA metropolitan area. Its published point location is 42.5483, -90.6937.
What county is 52001 in?
52001 lies in Dubuque County.
What area code is 52001?
Dubuque uses area code 563, from NANPA's telephone records.
What time zone is 52001 in?
52001 uses America/Chicago.
How many people live in 52001?
About 43,101 people live in ZIP code 52001, in 18,973 households, at 1,649.9 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 52001?
$61,643 a year, against $75,059 across Iowa.
What ZIP codes are near 52001?
The closest are 52004 (3.6 mi), 52099 (3.6 mi), 52002 (4.3 mi), 53812 (5.2 mi) and 53808 (8 mi).
Is 52001 a PO Box ZIP code?
52001 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “52001 ZIP Code — Dubuque, Iowa (Dubuque County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/52001
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/52001.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.