57439 ZIP Code
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ZIP code 57439 covers Ferney, South Dakota.
- Time zone
- Central UTC-06:00observes daylight saving time
Where 57439 is
Ferney, South Dakota — the point the Postal Service gives for this ZIP code. A ZIP code is a set of delivery routes rather than an area, so this marks its centre, not its boundary.
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 95.2% of US census tracts |
|---|---|
| FEMA rating | Relatively High |
| Expected annual loss | 96.1 out of 100 |
| Community resilience | 77.9 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 | 99.9Very High at its worst in this ZIP code |
|---|---|
| Cold wave | 99.7Very High at its worst in this ZIP code |
| Strong wind | 98.8Very High at its worst in this ZIP code |
| Hail | 98.4Very High at its worst in this ZIP code |
| Ice storm | 95.8Relatively High at its worst in this ZIP code |
| Wildfire | 94.3Relatively Moderate at its worst in this ZIP code |
| River flooding | 94.1Relatively High at its worst in this ZIP code |
| Tornado | 89.3Relatively High at its worst in this ZIP code |
| Drought | 87.6Relatively Low at its worst in this ZIP code |
| Landslide | 76.3Very Low at its worst in this ZIP code |
| Heat wave | 46.7Relatively Low at its worst in this ZIP code |
| Earthquake | 27.2Very Low at its worst in this ZIP code |
| Lightning | 19.9Very Low at its worst in this ZIP code |
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 | ANDOVER #2, SD US16.7 km away |
|---|---|
| Rain in a year | 24 in |
Average high and low by month
| January | 21.5°F / 4.6°F0.57 in rain |
|---|---|
| February | 27.1°F / 8.6°F0.57 in rain |
| March | 40.4°F / 21.3°F0.92 in rain |
| April | 55.7°F / 33°F2 in rain |
| May | 68.1°F / 45.9°F3.19 in rain |
| June | 77.3°F / 56.2°F3.92 in rain |
| July | 81.7°F / 61.3°F3.81 in rain |
| August | 80.4°F / 59.2°F2.74 in rain |
| September | 72.5°F / 50.3°F2.47 in rain |
| October | 57.7°F / 36.5°F2.2 in rain |
| November | 41.4°F / 22.8°F0.78 in rain |
| December | 27.5°F / 10.6°F0.81 in rain |
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%.
| Groton Area School District 06-6 | 100% 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 | 31more vulnerable than 31% of US census tracts |
|---|---|
| Socioeconomic status | 17more vulnerable than 17% of US census tracts |
| Household characteristics | 48more vulnerable than 48% of US census tracts |
| Racial and ethnic minority status | 2more vulnerable than 2% of US census tracts |
| Housing type and transport | 65more vulnerable than 65% of US census tracts |
| Walkability | 5.8 out of 20Below average |
Nearby ZIP codes
The closest ZIP codes by centre point, which is not the same as sharing a border.
| 57445 Groton, SD | 13.6 km away |
|---|---|
| 57474 Stratford, SD | 16 km away |
| 57422 Andover, SD | 16.6 km away |
| 57434 Conde, SD | 21.8 km away |
| 57219 Bristol, SD | 22 km away |
| 57427 Bath, SD | 25.5 km away |
| 57429 Brentford, SD | 26.1 km away |
| 57468 Pierpont, SD | 28.1 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.
| Brown County | 100% of this ZIP code's land area |
|---|---|
| Time zone | Central (UTC-06:00 standard) |
| Daylight saving time | Observed |
| Land area | 0.4 sq mi |
| Latitude, longitude | 45.3290, -98.0837 |
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.