ZIP code 50255
Where is ZIP code 50255?
Thornburg, Iowa
Keokuk County · PO Box only ZIP code
ZIP code 50255 belongs to Thornburg, Iowa in Keokuk County. 50255 is a PO Box only ZIP code: it is used for post office boxes at the Thornburg post office, not for street addresses. It is in the Central Time zone and uses area code 641. About 51 people live in the 50255 area, where the median household income is $39,722. The closest ZIP codes are 50104 (Gibson, 3.4 mi northwest), 50268 (What Cheer, 4.2 mi south) and 50136 (Keswick, 5 mi east).
| ZIP code | 50255 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Thornburg |
| State | Iowa (IA) |
| County | Keokuk County |
| Time zone | Central Time · now |
| Area code | 641 |
| Coordinates | 41.4547, -92.3357 map |
| 3-digit prefix | 502 |
Population and income in 50255
| Population | 51 · lower than 98% of Iowa ZIP codes |
|---|---|
| People per square mile | 267 · higher than 86% of Iowa ZIP codes |
| Median age | 57.8 years · higher than 93% of Iowa ZIP codes |
| Men / women | 51% / 49% |
| Median household income | $39,722 · lower than 98% of Iowa ZIP codes |
| Income per person | $28,943 |
| Below the poverty line | 7.8% |
| Bachelor’s degree or higher | 35% of adults 25+ |
| Housing units | 26 |
| Households | 26 (1.96 people on average) |
| Owners / renters | 100% / 0.0% |
| Land area | 0.19 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 50255. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 50255
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 50104 | Gibson, IA | 3.4 mi NW | Standard |
| 50268 | What Cheer, IA | 4.2 mi S | Standard |
| 50136 | Keswick, IA | 5 mi E | Standard |
| 50027 | Barnes City, IA | 7.3 mi W | Standard |
| 52222 | Deep River, IA | 8.2 mi N | Standard |
| 52355 | Webster, IA | 8.3 mi E | Standard |
| 52550 | Delta, IA | 9.5 mi S | Standard |
| 52591 | Sigourney, IA | 11.1 mi SE | Standard |
| 52586 | Rose Hill, IA | 11.1 mi SW | Standard |
| 52562 | Hayesville, IA | 11.5 mi SE | Standard |
| 52308 | Millersburg, IA | 12.2 mi NE | PO Box only |
| 52221 | Guernsey, IA | 12.7 mi N | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 50255 or measure the distance to another ZIP code.
How to address mail to 50255
PO BOX 123
THORNBURG IA 50255
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (50255-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 50255?
- 50255 is a Thornburg, Iowa ZIP code.
- What county is 50255 in?
- ZIP code 50255 is in Keokuk County, Iowa.
- What time zone is ZIP code 50255 in?
- 50255 is in the Central Time zone (America/Chicago).
- What area code is 50255?
- Phone numbers in ZIP code 50255 use area code 641.
- What is the population of ZIP code 50255?
- About 51 people live in ZIP code 50255, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 50255?
- The median household income in 50255 is $39,722 a year, lower than 98% of Iowa ZIP codes.
- Can I use 50255 for a street address?
- No. 50255 is only for PO Boxes. Street addresses in Thornburg use another ZIP code.
- What ZIP codes are near 50255?
- The nearest ZIP codes to 50255 are 50104 (Gibson, 3.4 miles), 50268 (What Cheer, 4.2 miles), 50136 (Keswick, 5 miles) and 50027 (Barnes City, 7.3 miles).