Marvin, SD · standard
ZIP Code 57251
Grant County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 127
- 1/sq mi Low-density area
- $72,292
- Median income Near-median income area
- $75,000
- Median home value Below-median home value
- 33.6%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Marvin pairs an above-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- Top 50%
- household income, US ZIPs
- 3rd pct
- home value, US ZIPs
- 1
- people per sq mi
- 73%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57251 against every reporting US ZIP.
ZIP code 57251 is a sparsely populated ZIP (a standard USPS delivery area) in Marvin, Grant County, South Dakota, home to just 127 residents across 127.0 square miles, a density of 1 people per square mile, in the Chicago time zone.
ZIP 57251 lands in the middle-income range, with a median household income of $72,292 (6% below the average South Dakota ZIP), while per-capita income is $19,431. The poverty rate is 41.5%, so the area-level income figures should not be treated as typical household experience. Home values sit below the statewide ZIP benchmark: the median is $75,000 (61% below the average South Dakota ZIP); owner occupancy is 72.7%.
A solid share of residents have a four-year degree: 33.6% of adults hold a bachelor's degree or higher, the median age is 28.5, and the average commute is -. The page also surfaces 3 ZIP codes within roughly 10 miles and 6 more in Grant County, so 57251 can be compared with both its immediate and county-level context.
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 57251, Marvin, 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
127
Population
127.0
Area (sq mi)
1
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 57251?
28.5
Median Age
82.9%
Male
17.1%
Female
20.6%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$72,292
Median Household Income
-6% vs state ZIP avg
$19,431
Per Capita Income
41.5%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 57251 ranks among South Dakota ZIPs
Marvin, SD household income vs. every South Dakota ZIP code
Median household income among 337 reporting South Dakota ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$72,292 45th percentile higher than 45% of 337 South Dakota ZIPs
Each bar is a $20K-wide band; taller bars hold more South Dakota ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
50housing units
50
Total Housing Units
33
Occupied Units
17
Vacant Units
2.36
Avg Household Size
Occupancy Type
$75,000
Median Home Value
-61% vs state ZIP avg
1972
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 3 business establishments in ZIP 57251, employing approximately 9 people with a combined annual payroll of $367,000.
3
Businesses
9
Employees
$367K
Annual Payroll
0
Industry Sectors
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 57251 vs 57269 →
ZIP 57251 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 57279
Wilmot (57279)
1,058 residents
- 57263
South Shore (57263)
450 residents
- 57269 413
Twin Brooks (57269)
413 residents
- 57251 127
Marvin (57251)
127 residents
What this shows Among its immediate neighbors, ZIP 57251 ranks #4 by population - useful context the national average alone can't give.
ZIP 57251 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 57269
Twin Brooks (57269)
$98,333 median income
- 57251
Marvin (57251)
$72,292 median income
- 57279
Wilmot (57279)
$71,324 median income
- 57263
South Shore (57263)
$58,214 median income
What this shows By household income, ZIP 57251 ranks #2 of 4 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 57251, both outside SD so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Grant County
Related Areas
Frequently Asked Questions
What county is ZIP code 57251 in?
ZIP code 57251 (Marvin) is located in Grant County, South Dakota. Grant County contains multiple ZIP codes, see the full list at /counties/grant-sd.
What is the population of ZIP code 57251?
ZIP code 57251 in Marvin, SD has a population of 127 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57251?
The median household income in ZIP 57251 is $72,292, which is 5% below the national average of $76,288.
What is the average home value in ZIP 57251?
The median home value in ZIP 57251 is $75,000, which is 73% below the national average of $278,155.
What is the demographic makeup of ZIP 57251?
The largest racial group in ZIP 57251 is White at 63.6%.
How many businesses are in ZIP code 57251?
ZIP code 57251 has 3 business establishments employing approximately 9 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 57251?
In ZIP code 57251, 48.9% of residents aged 25+ have a high school diploma or higher, and 33.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 57251?
In ZIP code 57251, approximately 72.7% of occupied housing units are owner-occupied and 27.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57251?
The poverty rate in ZIP code 57251 is 41.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 57251's numbers, next.
- See how ZIP 57251 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Marvin, 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.