ZIP code 52568
Where is ZIP code 52568?
Martinsburg, Iowa
Keokuk County · PO Box only ZIP code
ZIP code 52568 belongs to Martinsburg, Iowa in Keokuk County. 52568 is a PO Box only ZIP code: it is used for post office boxes at the Martinsburg post office, not for street addresses. It is in the Central Time zone and uses area code 641. About 80 people live in the 52568 area, where the median household income is $44,375. The closest ZIP codes are 52563 (Hedrick, 2.2 mi southwest), 52576 (Ollie, 7.1 mi east) and 52561 (Fremont, 8.6 mi west).
| ZIP code | 52568 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Martinsburg |
| State | Iowa (IA) |
| County | Keokuk County |
| Time zone | Central Time · now |
| Area code | 641 |
| Coordinates | 41.1948, -92.2715 map |
| 3-digit prefix | 525 |
Population and income in 52568
| Population | 80 · lower than 95% of Iowa ZIP codes |
|---|---|
| People per square mile | 305 · higher than 87% of Iowa ZIP codes |
| Median age | 52.5 years · higher than 86% of Iowa ZIP codes |
| Men / women | 45% / 55% |
| Median household income | $44,375 · lower than 97% of Iowa ZIP codes |
| Income per person | $21,354 |
| Below the poverty line | 31% |
| Bachelor’s degree or higher | 3.1% of adults 25+ |
| Median home value | $66,300 · lower than 98% of Iowa ZIP codes |
| Housing units | 34 |
| Households | 33 (2.42 people on average) |
| Owners / renters | 82% / 18% |
| Land area | 0.26 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 52568. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 52568
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 52563 | Hedrick, IA | 2.2 mi SW | Standard |
| 52576 | Ollie, IA | 7.1 mi E | Standard |
| 52561 | Fremont, IA | 8.6 mi W | Standard |
| 52550 | Delta, IA | 9.1 mi N | Standard |
| 52591 | Sigourney, IA | 10 mi N | Standard |
| 52562 | Hayesville, IA | 10.9 mi NE | Standard |
| 52580 | Packwood, IA | 11.8 mi SE | Standard |
| 52543 | Cedar, IA | 12.4 mi W | Standard |
| 52566 | Kirkville, IA | 12.4 mi W | Standard |
| 52501 | Ottumwa, IA | 13.4 mi SW | Standard |
| 52530 | Agency, IA | 14 mi S | Standard |
| 52586 | Rose Hill, IA | 14 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 52568 or measure the distance to another ZIP code.
How to address mail to 52568
PO BOX 123
MARTINSBURG IA 52568
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (52568-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 52568?
- 52568 is a Martinsburg, Iowa ZIP code.
- What county is 52568 in?
- ZIP code 52568 is in Keokuk County, Iowa.
- What time zone is ZIP code 52568 in?
- 52568 is in the Central Time zone (America/Chicago).
- What area code is 52568?
- Phone numbers in ZIP code 52568 use area code 641.
- What is the population of ZIP code 52568?
- About 80 people live in ZIP code 52568, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 52568?
- The median household income in 52568 is $44,375 a year, lower than 97% of Iowa ZIP codes.
- Can I use 52568 for a street address?
- No. 52568 is only for PO Boxes. Street addresses in Martinsburg use another ZIP code.
- What ZIP codes are near 52568?
- The nearest ZIP codes to 52568 are 52563 (Hedrick, 2.2 miles), 52576 (Ollie, 7.1 miles), 52561 (Fremont, 8.6 miles) and 52550 (Delta, 9.1 miles).