ZIP code 50431
Where is ZIP code 50431?
Coulter, Iowa
Franklin County · PO Box only ZIP code
ZIP code 50431 belongs to Coulter, Iowa in Franklin County. 50431 is a PO Box only ZIP code: it is used for post office boxes at the Coulter post office, not for street addresses. It is in the Central Time zone and uses area code 641. About 228 people live in the 50431 area, where the median household income is $62,917. The closest ZIP codes are 50452 (Latimer, 1.8 mi northeast), 50420 (Alexander, 6.3 mi northwest) and 50441 (Hampton, 8.1 mi east).
| ZIP code | 50431 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Coulter |
| State | Iowa (IA) |
| County | Franklin County |
| Time zone | Central Time · now |
| Area code | 641 |
| Coordinates | 42.7382, -93.37 map |
| 3-digit prefix | 504 |
Population and income in 50431
| Population | 228 · lower than 86% of Iowa ZIP codes |
|---|---|
| People per square mile | 305 · higher than 87% of Iowa ZIP codes |
| Median age | 34.2 years · lower than 90% of Iowa ZIP codes |
| Men / women | 56% / 44% |
| Median household income | $62,917 · lower than 75% of Iowa ZIP codes |
| Income per person | $24,881 |
| Below the poverty line | 17% |
| Bachelor’s degree or higher | 11% of adults 25+ |
| Median home value | $90,000 · lower than 91% of Iowa ZIP codes |
| Median rent | $693 a month |
| Housing units | 109 |
| Households | 84 (2.71 people on average) |
| Owners / renters | 74% / 26% |
| Land area | 0.75 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 50431. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 50431
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 50452 | Latimer, IA | 1.8 mi NE | Standard |
| 50420 | Alexander, IA | 6.3 mi NW | Standard |
| 50441 | Hampton, IA | 8.1 mi E | Standard |
| 50071 | Dows, IA | 8.7 mi SW | Standard |
| 50470 | Rowan, IA | 9.6 mi W | Standard |
| 50041 | Bradford, IA | 9.7 mi SE | PO Box only |
| 50427 | Chapin, IA | 10 mi NE | Standard |
| 50227 | Popejoy, IA | 10.2 mi S | Standard |
| 50101 | Galt, IA | 12.3 mi W | Standard |
| 50475 | Sheffield, IA | 12.4 mi NE | Standard |
| 50633 | Geneva, IA | 13 mi E | Standard |
| 50457 | Meservey, IA | 13.3 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 50431 or measure the distance to another ZIP code.
How to address mail to 50431
PO BOX 123
COULTER IA 50431
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (50431-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 50431?
- 50431 is a Coulter, Iowa ZIP code.
- What county is 50431 in?
- ZIP code 50431 is in Franklin County, Iowa.
- What time zone is ZIP code 50431 in?
- 50431 is in the Central Time zone (America/Chicago).
- What area code is 50431?
- Phone numbers in ZIP code 50431 use area code 641.
- What is the population of ZIP code 50431?
- About 228 people live in ZIP code 50431, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 50431?
- The median household income in 50431 is $62,917 a year, lower than 75% of Iowa ZIP codes.
- Can I use 50431 for a street address?
- No. 50431 is only for PO Boxes. Street addresses in Coulter use another ZIP code.
- What ZIP codes are near 50431?
- The nearest ZIP codes to 50431 are 50452 (Latimer, 1.8 miles), 50420 (Alexander, 6.3 miles), 50441 (Hampton, 8.1 miles) and 50071 (Dows, 8.7 miles).