57421 ZIP Code
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ZIP code 57421 covers Amherst, South Dakota.
- Poverty rate
- 0%12.4 points below the US average
- Time zone
- Central UTC-06:00observes daylight saving time
Where 57421 is
Amherst, South Dakota — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.
People and households
American Community Survey 2019–2023 five-year estimates
| Born outside the US | 0% |
|---|---|
| Speaks a language other than English at home | 0% |
| White (non-Hispanic) | 100% |
| Black (non-Hispanic) | 0% |
| Asian (non-Hispanic) | 0% |
| Hispanic or Latino | 0% |
Income and poverty
American Community Survey 2019–2023 five-year estimates
| Income per person | $28,948 |
|---|---|
| Poverty rate | 0% |
Housing
American Community Survey 2019–2023 five-year estimates
| Median year built | 1943 |
|---|
Natural hazard risk
FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.
| Overall risk | Higher than 97.9% of US census tracts |
|---|---|
| FEMA rating | Very High |
| Expected annual loss | 97.4 out of 100 |
| Community resilience | 39.7 out of 100 |
By hazard
Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.
| Winter weather | 100Very High at its worst in this ZIP code |
|---|---|
| Cold wave | 99.9Very High at its worst in this ZIP code |
| Strong wind | 99.7Very High at its worst in this ZIP code |
| Hail | 99.6Very High at its worst in this ZIP code |
| Ice storm | 97.9Very High at its worst in this ZIP code |
| Tornado | 97.8Very High at its worst in this ZIP code |
| Wildfire | 97.5Relatively High at its worst in this ZIP code |
| Landslide | 93.6Relatively Low at its worst in this ZIP code |
| River flooding | 90.3Relatively High at its worst in this ZIP code |
| Heat wave | 59.1Relatively Moderate at its worst in this ZIP code |
| Lightning | 42.4Relatively Low at its worst in this ZIP code |
| Earthquake | 26.7Very Low at its worst in this ZIP code |
Compared with South Dakota and the United States
State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates
| This ZIP | South Dakota | United States | |
|---|---|---|---|
| Median household income | — | $72,421 | $78,538 |
| Income per person | $28,948 | $38,880 | $43,289 |
| Poverty rate | 0% | 12% | 12.4% |
| Median home value | — | $236,800 | $303,400 |
| Median gross rent | — | $912 | $1,348 |
| Homeownership | — | 68.6% | 65% |
| Bachelor's degree or higher | — | 31.1% | 35% |
| Unemployment rate | — | 3% | 5.2% |
| Works from home | — | 9.3% | 13.5% |
| Born outside the US | 0% | 3.9% | 13.9% |
| Median age | — | 37.7 | 38.7 |
Climate
NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.
| Weather station | BRITTON, SD US14.2 km away |
|---|---|
| Rain in a year | 24 in |
| Snow in a year | 45 in |
Average high and low by month
| January | 20.4°F / 0.4°F0.66 in rain, 8.3 in snow |
|---|---|
| February | 25.3°F / 4.7°F0.64 in rain, 9.8 in snow |
| March | 38.7°F / 17.6°F0.87 in rain, 6.1 in snow |
| April | 54.7°F / 30.4°F1.96 in rain, 5.1 in snow |
| May | 68.4°F / 42.8°F3.04 in rain |
| June | 77.9°F / 53.7°F4.13 in rain |
| July | 82.5°F / 58.3°F4.41 in rain |
| August | 81°F / 56.1°F2.5 in rain |
| September | 72.7°F / 47°F2.56 in rain |
| October | 57.3°F / 33.6°F2.15 in rain, 1.2 in snow |
| November | 39.3°F / 19.3°F0.69 in rain, 5.1 in snow |
| December | 25.6°F / 7.1°F0.66 in rain, 9.8 in snow |
Access to food
USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.
| Low income and far from a supermarket | None of this ZIP code |
|---|---|
| Far from a supermarket | None of this ZIP code |
| No vehicle and far from a supermarket | None of this ZIP code |
School districts
NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.
This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.
| Britton-Hecla School District 45-4 | 78.9% of this ZIP code's land area |
|---|---|
| Langford School District 45-5 | 21.1% of this ZIP code's land area |
Community and walkability
CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.
| Overall social vulnerability | 39more vulnerable than 39% of US census tracts |
|---|---|
| Socioeconomic status | 19more vulnerable than 19% of US census tracts |
| Household characteristics | 57more vulnerable than 57% of US census tracts |
| Racial and ethnic minority status | 30more vulnerable than 30% of US census tracts |
| Housing type and transport | 68more vulnerable than 68% of US census tracts |
| Walkability | 5.6 out of 20Least walkable |
Nearby ZIP codes
The closest ZIP codes by centre point, which is not the same as sharing a border.
| 57432 Claremont, SD | 13.5 km away |
|---|---|
| 57449 Houghton, SD | 13.7 km away |
| 57430 Britton, SD | 15.2 km away |
| 57454 Langford, SD | 18.9 km away |
| 57446 Hecla, SD | 24.1 km away |
| 57468 Pierpont, SD | 30.5 km away |
| 57433 Columbia, SD | 32.4 km away |
| 58043 Havana, ND | 33.6 km away |
Location, counties and time zone
County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.
| Marshall County | 100% of this ZIP code's land area |
|---|---|
| Time zone | Central (UTC-06:00 standard) |
| Daylight saving time | Observed |
| Land area | 33.34 sq mi |
| Water area | 0.09 sq mi |
| Latitude, longitude | 45.7585, -97.9274 |
Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.