ZIP code
57421
Amherst, SD
57421 covers Amherst in Marshall County, with 75 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 57421. Methodology
ZIP code map of 57421
About ZIP code 57421
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 57421. Not ACS. Methodology
People in 57421
Race
- White56
- American Indian or Alaska Native1
- Two or more races6
Hispanic or Latino (any race): 0
Age
- Under 105
- 10 to 1912
- 20 to 297
- 30 to 394
- 40 to 495
- 50 to 595
- 60 to 6911
- 70 to 797
- 80 and older7
Income and housing in 57421
Education
- High school graduate100.0%
- Bachelor's degree93.1%
- Graduate degree48.3%
Places covering 57421
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.
No place overlap rows for this ZIP.
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.
- Marshall 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
100.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 57421
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 88 | |
| 2006 | 77 | |
| 2007 | 81 | |
| 2011 | 51 | |
| 2012 | 47 | |
| 2013 | 57 | |
| 2014 | 71 | |
| 2015 | 69 | |
| 2016 | 82 | |
| 2017 | 71 | |
| 2018 | 129 | |
| 2019 | 77 | |
| 2020 | 98 | |
| 2021 | 96 | |
| 2022 | 54 | |
| 2023 | 75 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 57421
12 nearest ZIP centroids (any distance)
- 57432Claremont7.8 miPop 210 · Income $82,917
- 57430Britton10.6 miPop 1,916 · Income $71,563
- 57454Langford12.2 miPop 702 · Income $66,750
- 57449Houghton13.1 miPop 280 · Income $178,092
- 57446Hecla14.3 miPop 521 · Income $61,875
- 57468Pierpont19.7 miPop 273 · Income $68,750
- 58017Cogswell20.1 miPop 330 · Income $61,094
- 57433Columbia21.5 miPop 384 · Income $71,215
- 57247Lake City21.6 miPop 229 · Income $66,042
- 57445Groton22.4 miPop 2,033 · Income $76,250
- 57422Andover22.9 miPop 153 · Income $85,909
- 58043Havana23.1 miPop 136 · Income $125,694
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 57421, 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 57421 FAQ
- What city is ZIP code 57421 in?
- 57421 is in Amherst, SD.
- What county is 57421 in?
- 57421 is in Marshall County.
- What is the median household income in 57421?
- Median household income is not published for 57421.
- Which ZIP codes are near 57421?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 57421.