ZIP code 51537
Where is ZIP code 51537?
Harlan, Iowa
Shelby County · Standard ZIP code
ZIP code 51537 belongs to Harlan, Iowa in Shelby County. 51537 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area code 712. About 6,382 people live in the 51537 area, where the median household income is $65,000. The closest ZIP codes are 51447 (Kirkman, 6.4 mi north), 51578 (Westphalia, 6.8 mi northwest) and 51565 (Portsmouth, 10.3 mi west).
| ZIP code | 51537 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Harlan |
| Also accepted | Tennant |
| State | Iowa (IA) |
| County | Shelby County |
| Time zone | Central Time · now |
| Area code | 712 |
| Coordinates | 41.6437, -95.3111 map |
| 3-digit prefix | 515 |
Population and income in 51537
| Population | 6,382 · higher than 88% of Iowa ZIP codes |
|---|---|
| People per square mile | 39 · higher than 67% of Iowa ZIP codes |
| Median age | 43 years · higher than 52% of Iowa ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $65,000 · lower than 70% of Iowa ZIP codes |
| Income per person | $37,951 |
| Below the poverty line | 7.3% |
| Bachelor’s degree or higher | 25% of adults 25+ |
| Median home value | $166,800 · higher than 55% of Iowa ZIP codes |
| Median rent | $790 a month |
| Housing units | 2,827 |
| Households | 2,538 (2.47 people on average) |
| Owners / renters | 76% / 24% |
| Land area | 163.79 sq mi (plus 0.29 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 51537. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 51537
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 51447 | Kirkman, IA | 6.4 mi N | Standard |
| 51578 | Westphalia, IA | 6.8 mi NW | PO Box only |
| 51565 | Portsmouth, IA | 10.3 mi W | Standard |
| 51570 | Shelby, IA | 10.3 mi SW | Standard |
| 51593 | Harlan, IA | 10.4 mi S | PO Box only |
| 51562 | Panama, IA | 10.8 mi NW | Standard |
| 51446 | Irwin, IA | 11 mi NE | Standard |
| 51527 | Defiance, IA | 11.4 mi N | Standard |
| 51521 | Avoca, IA | 11.7 mi S | Standard |
| 51530 | Earling, IA | 11.7 mi NW | Standard |
| 51531 | Elk Horn, IA | 13.1 mi E | Standard |
| 51543 | Kimballton, IA | 13.2 mi E | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 51537 or measure the distance to another ZIP code.
How to address mail to 51537
123 MAIN ST
HARLAN IA 51537
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts TENNANT as the city name for 51537. Adding the 4-digit ZIP+4 code (51537-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Harlan, IA
All Harlan ZIP codes with population and income →
Questions
- What city is ZIP code 51537?
- 51537 is a Harlan, Iowa ZIP code. Tennant is also accepted as the city name.
- What county is 51537 in?
- ZIP code 51537 is in Shelby County, Iowa.
- What time zone is ZIP code 51537 in?
- 51537 is in the Central Time zone (America/Chicago).
- What area code is 51537?
- Phone numbers in ZIP code 51537 use area code 712.
- What is the population of ZIP code 51537?
- About 6,382 people live in ZIP code 51537, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 51537?
- The median household income in 51537 is $65,000 a year, lower than 70% of Iowa ZIP codes.
- What ZIP codes are near 51537?
- The nearest ZIP codes to 51537 are 51447 (Kirkman, 6.4 miles), 51578 (Westphalia, 6.8 miles), 51565 (Portsmouth, 10.3 miles) and 51570 (Shelby, 10.3 miles).