ZIP code 50138
Where is ZIP code 50138?
Knoxville, Iowa
Marion County · Standard ZIP code
ZIP code 50138 belongs to Knoxville, Iowa in Marion County. 50138 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 codes 515 and 641. About 11,117 people live in the 50138 area, where the median household income is $74,693. The closest ZIP codes are 50119 (Harvey, 8.5 mi east), 50057 (Columbia, 9.7 mi south) and 50062 (Melcher Dallas, 9.9 mi southwest).
| ZIP code | 50138 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Knoxville |
| Also accepted | Pershing |
| State | Iowa (IA) |
| County | Marion County |
| Time zone | Central Time · now |
| Area codes | 515, 641 |
| Coordinates | 41.3164, -93.0954 map |
| 3-digit prefix | 501 |
Population and income in 50138
| Population | 11,117 · higher than 92% of Iowa ZIP codes |
|---|---|
| People per square mile | 66 · higher than 76% of Iowa ZIP codes |
| Median age | 42.9 years · higher than 51% of Iowa ZIP codes |
| Men / women | 47% / 53% |
| Median household income | $74,693 · higher than 52% of Iowa ZIP codes |
| Income per person | $41,015 |
| Below the poverty line | 11% |
| Bachelor’s degree or higher | 28% of adults 25+ |
| Median home value | $196,700 · higher than 69% of Iowa ZIP codes |
| Median rent | $815 a month |
| Housing units | 5,133 |
| Households | 4,663 (2.33 people on average) |
| Owners / renters | 81% / 19% |
| Land area | 168.15 sq mi (plus 7.65 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 50138. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 50138
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 50119 | Harvey, IA | 8.5 mi E | Standard |
| 50057 | Columbia, IA | 9.7 mi S | Standard |
| 50062 | Melcher Dallas, IA | 9.9 mi SW | Standard |
| 50163 | Melcher Dallas, IA | 9.9 mi SW | PO Box only |
| 50214 | Otley, IA | 9.9 mi N | Standard |
| 50225 | Pleasantville, IA | 9.9 mi NW | Standard |
| 50219 | Pella, IA | 11.2 mi NE | Standard |
| 50116 | Hamilton, IA | 11.2 mi SE | Standard |
| 50256 | Tracy, IA | 11.8 mi E | Standard |
| 50044 | Bussey, IA | 12.7 mi SE | Standard |
| 50170 | Monroe, IA | 14.2 mi N | Standard |
| 50252 | Swan, IA | 14.7 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 50138 or measure the distance to another ZIP code.
How to address mail to 50138
123 MAIN ST
KNOXVILLE IA 50138
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts PERSHING as the city name for 50138. Adding the 4-digit ZIP+4 code (50138-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 50138?
- 50138 is a Knoxville, Iowa ZIP code. Pershing is also accepted as the city name.
- What county is 50138 in?
- ZIP code 50138 is in Marion County, Iowa.
- What time zone is ZIP code 50138 in?
- 50138 is in the Central Time zone (America/Chicago).
- What area code is 50138?
- Phone numbers in ZIP code 50138 use area codes 515 and 641.
- What is the population of ZIP code 50138?
- About 11,117 people live in ZIP code 50138, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 50138?
- The median household income in 50138 is $74,693 a year, higher than 52% of Iowa ZIP codes.
- What ZIP codes are near 50138?
- The nearest ZIP codes to 50138 are 50119 (Harvey, 8.5 miles), 50057 (Columbia, 9.7 miles), 50062 (Melcher Dallas, 9.9 miles) and 50163 (Melcher Dallas, 9.9 miles).