ZIP code
50138
Knoxville, IA
50138 covers Knoxville in Marion County, with 11,374 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 50138. Methodology
ZIP code map of 50138

About ZIP code 50138
Acceptable cities: Pershing
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 50138. Not ACS. Methodology
People in 50138
Race
- White10,862
- Black or African American126
- American Indian or Alaska Native39
- Asian50
- Native Hawaiian and Pacific Islander2
- Other race70
- Two or more races482
Hispanic or Latino (any race): 226
Age
- Under 101,350
- 10 to 191,543
- 20 to 291,207
- 30 to 391,290
- 40 to 491,379
- 50 to 591,591
- 60 to 691,653
- 70 to 791,023
- 80 and older595
Income and housing in 50138
Education
- High school graduate94.2%
- Bachelor's degree28.4%
- Graduate degree7.3%
Places covering 50138
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Knoxville65.3%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Marion County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
34.7% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 50138
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 10,902 | |
| 2006 | 10,602 | |
| 2007 | 11,332 | |
| 2008 | 10,410 | |
| 2009 | 10,380 | |
| 2010 | 10,288 | |
| 2011 | 11,710 | 10,305 |
| 2012 | 11,700 | 10,170 |
| 2013 | 11,830 | 10,310 |
| 2014 | 11,603 | 10,130 |
| 2015 | 11,315 | 10,210 |
| 2016 | 11,324 | 10,160 |
| 2017 | 11,161 | 10,140 |
| 2018 | 11,741 | 10,160 |
| 2019 | 11,940 | 10,270 |
| 2020 | 11,725 | 10,140 |
| 2021 | 11,994 | 10,010 |
| 2022 | 12,086 | 10,100 |
| 2023 | 11,374 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 50138
12 nearest ZIP centroids (any distance)
- 50062Melcher Dallas8.5 miPop 833 · Income $70,714
- 50057Columbia8.6 miPop 261 · Income —
- 50119Harvey8.7 miPop 352 · Income $50,833
- 50163Melcher Dallas8.9 miPop 669 · Income $73,704
- 50225Pleasantville10.2 miPop 3,396 · Income $69,221
- 50116Hamilton10.8 miPop 185 · Income —
- 50256Tracy10.9 miPop 620 · Income $76,985
- 50214Otley11.8 miPop 684 · Income $118,958
- 50044Bussey12.6 miPop 948 · Income $75,568
- 50219Pella13.6 miPop 14,267 · Income $83,601
- 50150Lovilia14.1 miPop 827 · Income $64,844
- 50139Lacona15.0 miPop 1,058 · Income $70,673
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 50138, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 50138 FAQ
- What city is ZIP code 50138 in?
- 50138 is in Knoxville, IA.
- What county is 50138 in?
- 50138 is in Marion County.
- What is the median household income in 50138?
- The median household income in 50138 is $76,887.
- Which ZIP codes are near 50138?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 50138.