ZIP code
51446
Irwin, IA
51446 covers Irwin in Shelby County, with 437 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 51446. Methodology
ZIP code map of 51446
About ZIP code 51446
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 51446. Not ACS. Methodology
People in 51446
Race
- White493
- Black or African American3
- American Indian or Alaska Native1
- Other race5
- Two or more races18
Hispanic or Latino (any race): 11
Age
- Under 1049
- 10 to 1969
- 20 to 2950
- 30 to 3935
- 40 to 4946
- 50 to 5982
- 60 to 6987
- 70 to 7963
- 80 and older39
Income and housing in 51446
Education
- High school graduate96.6%
- Bachelor's degree29.1%
- Graduate degree7.1%
Places covering 51446
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.
- Irwin61.3%
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.
- Shelby 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
38.7% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 51446
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 539 | |
| 2006 | 536 | |
| 2007 | 549 | |
| 2008 | 480 | |
| 2009 | 486 | |
| 2010 | 492 | |
| 2011 | 609 | 489 |
| 2012 | 505 | 480 |
| 2013 | 517 | 440 |
| 2014 | 585 | 470 |
| 2015 | 524 | 450 |
| 2016 | 513 | 450 |
| 2017 | 586 | 450 |
| 2018 | 561 | 460 |
| 2019 | 563 | 450 |
| 2020 | 570 | 470 |
| 2021 | 554 | 460 |
| 2022 | 483 | 430 |
| 2023 | 437 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 51446
12 nearest ZIP centroids (any distance)
- 51447Kirkman3.8 miPop 132 · Income $114,643
- 51454Manilla7.5 miPop 1,399 · Income $99,044
- 51527Defiance8.5 miPop 346 · Income $63,155
- 51432Aspinwall9.6 miPop 35 · Income $63,125
- 51543Kimballton10.3 miPop 435 · Income $55,625
- 51537Harlan10.3 miPop 6,480 · Income $62,353
- 51578Westphalia11.1 miPop 150 · Income $108,646
- 51455Manning11.4 miPop 2,303 · Income $75,455
- 50110Gray11.6 miPop 36 · Income $57,292
- 51530Earling12.3 miPop 710 · Income $53,750
- 50025Audubon14.1 miPop 2,893 · Income $51,758
- 51531Elk Horn14.1 miPop 943 · Income $58,929
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 51446, 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 51446 FAQ
- What city is ZIP code 51446 in?
- 51446 is in Irwin, IA.
- What county is 51446 in?
- 51446 is in Shelby County.
- What is the median household income in 51446?
- The median household income in 51446 is $61,750.
- Which ZIP codes are near 51446?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 51446.