| Old Peru, Iowa | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Iowa#USA |
| Pushpin Label: | Old Peru |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Madison |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1122 |
| Coordinates: | 41.2358°N -93.9453°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 459832 |
Old Peru (also Peru, pronounced PEE-roo) is an unincorporated community in Madison County, Iowa, United States. Its elevation is 1,122 feet (342 m). Although Old Peru is unincorporated, it once had a post office under the name of Peru; the office was established on 18 April 1853 and closed on 14 September 1903. Even though the community's post office has been closed for over a century, ZIP Code 50222 is still reserved for Peru.[1]
Old Peru was laid out as a town in 1855, but it declined when the railroad missed it by a mile, and in 1887 the town of East Peru was founded on that line.[2]
The original (seedling) delicious apple tree grew in Peru.[3]