ZIP code
50638
Grundy Center, IA
50638 covers Grundy Center in Grundy County, with 3,474 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 50638. Methodology
ZIP code map of 50638

About ZIP code 50638
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 50638. Not ACS. Methodology
People in 50638
Race
- White3,268
- Black or African American19
- American Indian or Alaska Native5
- Asian11
- Other race13
- Two or more races95
Hispanic or Latino (any race): 47
Age
- Under 10417
- 10 to 19438
- 20 to 29320
- 30 to 39419
- 40 to 49372
- 50 to 59400
- 60 to 69461
- 70 to 79322
- 80 and older262
Income and housing in 50638
Education
- High school graduate96.8%
- Bachelor's degree25.2%
- Graduate degree5.4%
Places covering 50638
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.
- Grundy Center82.0%
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.
- Grundy 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
18.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 50638
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 3,083 | |
| 2006 | 3,093 | |
| 2007 | 3,300 | |
| 2008 | 3,097 | |
| 2009 | 3,081 | |
| 2010 | 3,108 | |
| 2011 | 3,135 | 3,092 |
| 2012 | 3,179 | 3,010 |
| 2013 | 3,260 | 3,050 |
| 2014 | 3,282 | 3,000 |
| 2015 | 3,320 | 2,980 |
| 2016 | 3,236 | 3,010 |
| 2017 | 3,422 | 2,980 |
| 2018 | 3,297 | 2,960 |
| 2019 | 3,304 | 3,080 |
| 2020 | 3,307 | 3,110 |
| 2021 | 3,444 | 3,060 |
| 2022 | 3,330 | 3,080 |
| 2023 | 3,474 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 50638
12 nearest ZIP centroids (any distance)
- 50642Holland5.8 miPop 554 · Income $108,750
- 50657Morrison6.2 miPop 125 · Income $88,750
- 50652Lincoln8.2 miPop 88 · Income $56,875
- 50680Wellsburg8.7 miPop 1,077 · Income $72,684
- 50609Beaman8.9 miPop 370 · Income $89,479
- 50669Reinbeck9.3 miPop 2,447 · Income $83,636
- 50621Conrad9.9 miPop 1,591 · Income $86,146
- 50624Dike10.4 miPop 1,664 · Income $93,333
- 50635Gladbrook11.8 miPop 1,470 · Income $72,981
- 50673Stout12.4 miPop 236 · Income $87,500
- 50269Whitten12.7 miPop 125 · Income $68,750
- 50672Steamboat Rock14.9 miPop 438 · Income $64,063
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 50638, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.
ZIP code 50638 FAQ
- What city is ZIP code 50638 in?
- 50638 is in Grundy Center, IA.
- What county is 50638 in?
- 50638 is in Grundy County.
- What is the median household income in 50638?
- The median household income in 50638 is $79,500.
- Which ZIP codes are near 50638?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 50638.