51011
ZIP 51011 is Chatsworth, Iowa, in Sioux County; area code 712; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Sioux
- Metro area
- none
- Population
- 54
- Coordinates
- 42.9156, -96.5139
Weather right now
Asking the National Weather Service…
Where 51011 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 51011 into a pocket calculator and turn it upside down: IIOIS — not quite a word, sorry.
- ➕ As a number, 51,011 = 29 × 1759. Its digits add up to 8, a total 251 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100011101000011 - 🏠 Its numerical neighbours: 51010 (Castana, IA, 64 mi away) and 51012 (Cherokee, IA, 50 mi away).
- 🔄 Backwards, 51011 becomes 11015, which is not a ZIP code at all.
- 👥 13 other ZIP codes are made of exactly the same digits (01115, 01151, 10115, 10151, 10511, 11051, …). The farthest-flung twin is 01151 in Indian Orchard, MA, 1,219 miles away.
- 🧭 Farther north than 82% of all ZIP codes, and farther west than 72%.
- 🎯239 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 51011 and you would come out at 42.92°S, 83.49°E — 774 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 21m of daylight. Shortest: 9h 01m.
- 📏 At 0.419 square miles of land, 51011 is bigger than 5% of ZIP codes — about 203 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 54This ZIP54 |
|---|---|
| Households | 30This ZIP30 |
| Housing units | 48This ZIP48 |
| Median age | 60.5This ZIP60.5Iowa38.6US 38.9 |
| Median household income | $44,375This ZIP$44,375Iowa$75,059US $80,734 |
| Bachelor's degree or higher | 0.0% |
| Mean commute | 25.8 minThis ZIP25.8 min |
| Population density | 128.9 / sq miThis ZIP128.9 / sq mi |
Land area
| Land area | 0.42 sq miThis ZIP0.42 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 51011
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 51011
| ZIP | City | Distance |
|---|---|---|
51001 | Akron, IA | 5.4 mi |
51023 | Hawarden, IA | 6.8 mi |
57001 | Alcester, SD | 9.5 mi |
51027 | Ireton, IA | 10.0 mi |
57034 | Hudson, SD | 14.2 mi |
51008 | Brunsville, IA | 14.4 mi |
51062 | Westfield, IA | 15.1 mi |
57025 | Elk Point, SD | 16.6 mi |
51036 | Maurice, IA | 16.8 mi |
57010 | Burbank, SD | 16.9 mi |
Find every ZIP code within 10 miles of 51011 →
Questions about this ZIP code
Where is ZIP code 51011?
51011 is in Chatsworth, Iowa, in Sioux County. Its published point location is 42.9156, -96.5139.
What county is 51011 in?
51011 lies in Sioux County.
What area code is 51011?
Chatsworth uses area code 712, from NANPA's telephone records.
What time zone is 51011 in?
51011 uses America/Chicago.
How many people live in 51011?
About 54 people live in ZIP code 51011, in 30 households, at 128.9 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 51011?
$44,375 a year, against $75,059 across Iowa.
What ZIP codes are near 51011?
The closest are 51001 (5.4 mi), 51023 (6.8 mi), 57001 (9.5 mi), 51027 (10 mi) and 57034 (14.2 mi).
Is 51011 a PO Box ZIP code?
51011 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “51011 ZIP Code — Chatsworth, Iowa (Sioux County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51011
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/51011.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.