Ferney, SD · standard
ZIP Code 57439
Brown County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 52
- 4/sq mi Low-density area
National ZIP placement
Ferney has 52 residents, placing it among the least populous of the 33,099 US ZIP codes with a reported population, at 4 people per square mile.
Source: USPS ZIP record + U.S. Census Bureau ZIP population. Rank compares ZIP 57439 against every US ZIP with a reported population; income/home-value percentiles are not available for this ZIP.
ZIP code 57439 is a sparsely populated ZIP (a standard USPS delivery area) in Ferney, Brown County, South Dakota, home to just 52 residents across 13.0 square miles, a density of 4 people per square mile, in the Chicago time zone.
With fewer than 100 residents on file, this page keeps the Census figures below and skips the multi-chart expansion used on larger ZIPs. Small-N ACS estimates are already unstable enough without padding the page around them.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 57439, Ferney, SD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
52
Population
13.0
Area (sq mi)
4
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 57439?
-
Median Age
-
Male
-
Female
-
Foreign-Born
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
20housing units
20
Total Housing Units
0
Occupied Units
20
Vacant Units
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Nearby ZIP Codes
Want a side-by-side? Compare 57439 vs 57445 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 57445 | Groton, SD | 2,068 | 9.3 mi |
Related Areas
Frequently Asked Questions
What county is ZIP code 57439 in?
ZIP code 57439 (Ferney) is located in Brown County, South Dakota. Brown County contains multiple ZIP codes, see the full list at /counties/brown-sd.
What is the population of ZIP code 57439?
ZIP code 57439 in Ferney, SD has a population of 52 according to the Census Bureau ACS 2023 estimates.
Take this with you
What to do with ZIP 57439's numbers, next.
- See how ZIP 57439 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Ferney, SD ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.