ZIP code
51431
Arthur, IA
51431 covers Arthur in Ida County, with 473 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 51431. Methodology
ZIP code map of 51431

About ZIP code 51431
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 51431. Not ACS. Methodology
People in 51431
Race
- White388
- Asian1
- Other race6
- Two or more races9
Hispanic or Latino (any race): 6
Age
- Under 1050
- 10 to 1964
- 20 to 2939
- 30 to 3949
- 40 to 4950
- 50 to 5945
- 60 to 6955
- 70 to 7935
- 80 and older17
Income and housing in 51431
Education
- High school graduate95.2%
- Bachelor's degree14.1%
- Graduate degree2.4%
Places covering 51431
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.
- Arthur55.0%
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.
- Ida County95.8%
- Sac County4.2%
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
45.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 51431
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 382 | |
| 2006 | 352 | |
| 2007 | 382 | |
| 2009 | 370 | |
| 2010 | 355 | |
| 2011 | 338 | 352 |
| 2012 | 366 | 360 |
| 2013 | 385 | 360 |
| 2014 | 449 | 410 |
| 2015 | 464 | 390 |
| 2016 | 441 | 350 |
| 2017 | 439 | 370 |
| 2018 | 432 | 380 |
| 2019 | 426 | 390 |
| 2020 | 341 | 360 |
| 2021 | 467 | 340 |
| 2022 | 463 | 350 |
| 2023 | 473 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 51431
12 nearest ZIP centroids (any distance)
- 51445Ida Grove6.0 miPop 2,464 · Income $66,250
- 51458Odebolt6.1 miPop 1,255 · Income $73,984
- 51448Kiron9.8 miPop 547 · Income $54,688
- 51053Schaller10.9 miPop 1,056 · Income $70,195
- 50535Early12.1 miPop 1,035 · Income $81,667
- 51020Galva12.2 miPop 615 · Income $75,938
- 51461Schleswig13.3 miPop 1,150 · Income $71,573
- 51006Battle Creek13.5 miPop 1,201 · Income $81,563
- 51466Wall Lake14.5 miPop 1,180 · Income $69,643
- 51025Holstein14.9 miPop 1,881 · Income $63,375
- 51441Deloit16.1 miPop 487 · Income $53,125
- 51450Lake View17.0 miPop 1,532 · Income $77,619
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 51431, 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 51431 FAQ
- What city is ZIP code 51431 in?
- 51431 is in Arthur, IA.
- What county is 51431 in?
- 51431 is in Ida County.
- What is the median household income in 51431?
- The median household income in 51431 is $54,333.
- Which ZIP codes are near 51431?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 51431.