51543
ZIP 51543 is Kimballton, Iowa, mostly in Audubon County; area code 712; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Audubon +1 more
- Metro area
- none
- Population
- 478
- Coordinates
- 41.6579, -95.0731
Weather right now
Asking the National Weather Service…
Where 51543 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 51543 into a pocket calculator and turn it upside down: EhSIS — not quite a word, sorry.
- ➕ As a number, 51,543 = 3 × 3 × 3 × 23 × 83. Its digits add up to 18, a total 2,332 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100100101010111 - 🏠 Its numerical neighbours: 51542 (Honey Creek, IA, 42 mi away) and 51544 (Lewis, IA, 24 mi away).
- 🔄 Backwards, 51543 becomes 34515, which is not a ZIP code at all.
- 👥 30 other ZIP codes are made of exactly the same digits (13455, 15345, 15435, 15534, 31545, 31554, …). The farthest-flung twin is 13455 in Sangerfield, NY, 1,008 miles away.
- 🧭 Farther north than 72% of all ZIP codes, and farther west than 69%.
- 🎯223 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 51543 and you would come out at 41.66°S, 84.93°E — 886 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 12m of daylight. Shortest: 9h 09m.
- 📏 At 22.0 square miles of land, 51543 is bigger than 39% of ZIP codes — room for about 17 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 478This ZIP478 |
|---|---|
| Households | 159This ZIP159 |
| Housing units | 188This ZIP188 |
| Median age | 35.3This ZIP35.3Iowa38.6US 38.9 |
| Median household income | $72,083This ZIP$72,083Iowa$75,059US $80,734 |
| Median home value | $163,000This ZIP$163,000Iowa$208,000US $332,700 |
| Median gross rent | $1,069This ZIP$1,069Iowa$972US $1,413 |
| Bachelor's degree or higher | 9.0%This ZIP9.0% |
| Mean commute | 24.2 minThis ZIP24.2 min |
| Population density | 21.8 / sq miThis ZIP21.8 / sq mi |
Business and tax activity
| Business establishments | 11This ZIP11 |
|---|---|
| Employees | 35This ZIP35 |
| Annual payroll | $1,886,000This ZIP$1,886,000 |
| Tax returns filed | 180This ZIP180 |
| Total adjusted gross income | $11,307,000This ZIP$11,307,000 |
Land area
| Land area | 21.97 sq miThis ZIP21.97 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Counties 51543 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Audubon County | 69.9% |
| Shelby County | 30.1% |
Other place names in 51543
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 51543
| ZIP | City | Distance |
|---|---|---|
51531 | Elk Horn, IA | 4.9 mi |
51447 | Kirkman, IA | 7.5 mi |
51446 | Irwin, IA | 10.3 mi |
50025 | Audubon, IA | 10.4 mi |
51537 | Harlan, IA | 11.6 mi |
51552 | Marne, IA | 12.1 mi |
50042 | Brayton, IA | 12.2 mi |
50076 | Exira, IA | 12.8 mi |
50110 | Gray, IA | 13.6 mi |
50117 | Hamlin, IA | 14.7 mi |
Find every ZIP code within 10 miles of 51543 →
Questions about this ZIP code
Where is ZIP code 51543?
51543 is in Kimballton, Iowa, in Audubon County. Its published point location is 41.6579, -95.0731.
What county is 51543 in?
51543 spans 2 counties: Audubon County and Shelby County. Most of it falls in Audubon 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 51543?
Kimballton uses area code 712, from NANPA's telephone records.
What time zone is 51543 in?
51543 uses America/Chicago.
How many people live in 51543?
About 478 people live in ZIP code 51543, in 159 households, at 21.8 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 51543?
$72,083 a year, against $75,059 across Iowa.
What ZIP codes are near 51543?
The closest are 51531 (4.9 mi), 51447 (7.5 mi), 51446 (10.3 mi), 50025 (10.4 mi) and 51537 (11.6 mi).
Is 51543 a PO Box ZIP code?
51543 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “51543 ZIP Code — Kimballton, Iowa (Audubon County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51543
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/51543.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.