52166
ZIP 52166 is Saint Lucas, Iowa, in Fayette County; area code 563; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Fayette
- Metro area
- none
- Population
- 137
- Coordinates
- 43.0680, -91.9355
Weather right now
Asking the National Weather Service…
Where 52166 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 52166 into a pocket calculator and turn it upside down: ggIZS — not quite a word, sorry.
- ➕ As a number, 52,166 = 2 × 26083. Its digits add up to 20, a total 2,586 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100101111000110 - 🏠 Its numerical neighbours: 52165 (Ridgeway, IA, 17 mi away) and 52168 (Spillville, IA, 9 mi away).
- 🔄 Backwards, 52166 becomes 66125, which is not a ZIP code at all.
- 👥 31 other ZIP codes are made of exactly the same digits (12566, 15626, 15662, 16256, 16625, 16652, …). The farthest-flung twin is 12566 in Pine Bush, NY, 903 miles away.
- 🧭 Farther north than 83% of all ZIP codes, and farther west than 61%.
- 🎯410 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 52166 and you would come out at 43.07°S, 88.06°E — 954 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
- 📏 At 0.258 square miles of land, 52166 is bigger than 3% of ZIP codes — about 125 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 137This ZIP137 |
|---|---|
| Households | 49This ZIP49 |
| Housing units | 66This ZIP66 |
| Median age | 39.7This ZIP39.7Iowa38.6US 38.9 |
| Median household income | $110,938This ZIP$110,938Iowa$75,059US $80,734 |
| Median home value | $146,900This ZIP$146,900Iowa$208,000US $332,700 |
| Bachelor's degree or higher | 13.6%This ZIP13.6% |
| Mean commute | 25.2 minThis ZIP25.2 min |
| Population density | 531.0 / sq miThis ZIP531.0 / sq mi |
Business and tax activity
| Business establishments | 8This ZIP8 |
|---|---|
| Employees | 61This ZIP61 |
| Annual payroll | $1,878,000This ZIP$1,878,000 |
Land area
| Land area | 0.26 sq miThis ZIP0.26 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 52166
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 52166
| ZIP | City | Distance |
|---|---|---|
52144 | Fort Atkinson, IA | 5.1 mi |
52171 | Waucoma, IA | 5.9 mi |
52175 | West Union, IA | 7.6 mi |
52147 | Hawkeye, IA | 8.6 mi |
52168 | Spillville, IA | 9.4 mi |
52132 | Calmar, IA | 9.9 mi |
52161 | Ossian, IA | 9.9 mi |
52154 | Lawler, IA | 12.1 mi |
52163 | Protivin, IA | 13.5 mi |
52135 | Clermont, IA | 14.2 mi |
Find every ZIP code within 10 miles of 52166 →
Questions about this ZIP code
Where is ZIP code 52166?
52166 is in Saint Lucas, Iowa, in Fayette County. Its published point location is 43.0680, -91.9355.
What county is 52166 in?
52166 lies in Fayette County.
What area code is 52166?
Saint Lucas uses area code 563, from NANPA's telephone records.
What time zone is 52166 in?
52166 uses America/Chicago.
How many people live in 52166?
About 137 people live in ZIP code 52166, in 49 households, at 531.0 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 52166?
$110,938 a year, against $75,059 across Iowa.
What ZIP codes are near 52166?
The closest are 52144 (5.1 mi), 52171 (5.9 mi), 52175 (7.6 mi), 52147 (8.6 mi) and 52168 (9.4 mi).
Is 52166 a PO Box ZIP code?
52166 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “52166 ZIP Code — Saint Lucas, Iowa (Fayette County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/52166
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/52166.json Underlying data is public domain or openly licensed — sources, vintages and licences.