ZIP code 51578
Where is ZIP code 51578?
Westphalia, Iowa
Shelby County · PO Box only ZIP code
ZIP code 51578 belongs to Westphalia, Iowa in Shelby County. 51578 is a PO Box only ZIP code: it is used for post office boxes at the Westphalia post office, not for street addresses. It is in the Central Time zone and uses area code 712. About 116 people live in the 51578 area, where the median household income is $77,292. The closest ZIP codes are 51562 (Panama, 4.8 mi west), 51530 (Earling, 5.2 mi north) and 51527 (Defiance, 6.3 mi north).
| ZIP code | 51578 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Westphalia |
| State | Iowa (IA) |
| County | Shelby County |
| Time zone | Central Time · now |
| Area code | 712 |
| Coordinates | 41.7199, -95.3952 map |
| 3-digit prefix | 515 |
Population and income in 51578
| Population | 116 · lower than 93% of Iowa ZIP codes |
|---|---|
| People per square mile | 1,657 · higher than 96% of Iowa ZIP codes |
| Median age | 63.3 years · higher than 98% of Iowa ZIP codes |
| Men / women | 42% / 58% |
| Median household income | $77,292 · higher than 58% of Iowa ZIP codes |
| Income per person | $45,207 |
| Below the poverty line | 2.6% |
| Bachelor’s degree or higher | 14% of adults 25+ |
| Median home value | $97,600 · lower than 87% of Iowa ZIP codes |
| Housing units | 70 |
| Households | 61 (1.9 people on average) |
| Owners / renters | 72% / 28% |
| Land area | 0.07 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 51578. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 51578
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 51562 | Panama, IA | 4.8 mi W | Standard |
| 51530 | Earling, IA | 5.2 mi N | Standard |
| 51527 | Defiance, IA | 6.3 mi N | Standard |
| 51447 | Kirkman, IA | 6.6 mi E | Standard |
| 51537 | Harlan, IA | 6.8 mi SE | Standard |
| 51565 | Portsmouth, IA | 7.7 mi SW | Standard |
| 51446 | Irwin, IA | 11.2 mi E | Standard |
| 51570 | Shelby, IA | 13.1 mi S | Standard |
| 51563 | Persia, IA | 13.9 mi SW | Standard |
| 51528 | Dow City, IA | 14.2 mi N | Standard |
| 51454 | Manilla, IA | 14.4 mi NE | Standard |
| 51529 | Dunlap, IA | 15.3 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 51578 or measure the distance to another ZIP code.
How to address mail to 51578
PO BOX 123
WESTPHALIA IA 51578
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (51578-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 51578?
- 51578 is a Westphalia, Iowa ZIP code.
- What county is 51578 in?
- ZIP code 51578 is in Shelby County, Iowa.
- What time zone is ZIP code 51578 in?
- 51578 is in the Central Time zone (America/Chicago).
- What area code is 51578?
- Phone numbers in ZIP code 51578 use area code 712.
- What is the population of ZIP code 51578?
- About 116 people live in ZIP code 51578, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 51578?
- The median household income in 51578 is $77,292 a year, higher than 58% of Iowa ZIP codes.
- Can I use 51578 for a street address?
- No. 51578 is only for PO Boxes. Street addresses in Westphalia use another ZIP code.
- What ZIP codes are near 51578?
- The nearest ZIP codes to 51578 are 51562 (Panama, 4.8 miles), 51530 (Earling, 5.2 miles), 51527 (Defiance, 6.3 miles) and 51447 (Kirkman, 6.6 miles).