ZIP code 50631
Where is ZIP code 50631?
Frederika, Iowa
Bremer County · PO Box only ZIP code
ZIP code 50631 belongs to Frederika, Iowa in Bremer County. 50631 is a PO Box only ZIP code: it is used for post office boxes at the Frederika post office, not for street addresses. It is in the Central Time zone and uses area code 319. About 225 people live in the 50631 area, where the median household income is $58,750. The closest ZIP codes are 50676 (Tripoli, 5.4 mi south), 50630 (Fredericksburg, 7.6 mi northeast) and 50677 (Waverly, 8.9 mi southwest).
| ZIP code | 50631 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Frederika |
| State | Iowa (IA) |
| County | Bremer County |
| Time zone | Central Time · now |
| Area code | 319 |
| Coordinates | 42.8827, -92.3063 map |
| 3-digit prefix | 506 |
Population and income in 50631
| Population | 225 · lower than 87% of Iowa ZIP codes |
|---|---|
| People per square mile | 1,216 · higher than 95% of Iowa ZIP codes |
| Median age | 40.5 years · lower than 63% of Iowa ZIP codes |
| Men / women | 56% / 44% |
| Median household income | $58,750 · lower than 85% of Iowa ZIP codes |
| Income per person | $26,067 |
| Below the poverty line | 15% |
| Bachelor’s degree or higher | 13% of adults 25+ |
| Median home value | $98,800 · lower than 86% of Iowa ZIP codes |
| Median rent | $667 a month |
| Housing units | 122 |
| Households | 86 (2.62 people on average) |
| Owners / renters | 84% / 16% |
| Land area | 0.19 sq mi (plus 0.09 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 50631. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 50631
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 50676 | Tripoli, IA | 5.4 mi S | Standard |
| 50630 | Fredericksburg, IA | 7.6 mi NE | Standard |
| 50677 | Waverly, IA | 8.9 mi SW | Standard |
| 50674 | Sumner, IA | 9.9 mi E | Standard |
| 50666 | Plainfield, IA | 10.6 mi W | Standard |
| 50659 | New Hampton, IA | 12 mi N | Standard |
| 50658 | Nashua, IA | 12.3 mi NW | Standard |
| 50668 | Readlyn, IA | 13.9 mi S | Standard |
| 50645 | Ionia, IA | 14.2 mi NW | Standard |
| 50622 | Denver, IA | 14.6 mi S | Standard |
| 50681 | Westgate, IA | 16.5 mi SE | Standard |
| 52154 | Lawler, IA | 16.7 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 50631 or measure the distance to another ZIP code.
How to address mail to 50631
PO BOX 123
FREDERIKA IA 50631
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (50631-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 50631?
- 50631 is a Frederika, Iowa ZIP code.
- What county is 50631 in?
- ZIP code 50631 is in Bremer County, Iowa.
- What time zone is ZIP code 50631 in?
- 50631 is in the Central Time zone (America/Chicago).
- What area code is 50631?
- Phone numbers in ZIP code 50631 use area code 319.
- What is the population of ZIP code 50631?
- About 225 people live in ZIP code 50631, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 50631?
- The median household income in 50631 is $58,750 a year, lower than 85% of Iowa ZIP codes.
- Can I use 50631 for a street address?
- No. 50631 is only for PO Boxes. Street addresses in Frederika use another ZIP code.
- What ZIP codes are near 50631?
- The nearest ZIP codes to 50631 are 50676 (Tripoli, 5.4 miles), 50630 (Fredericksburg, 7.6 miles), 50677 (Waverly, 8.9 miles) and 50674 (Sumner, 9.9 miles).