PlainZIP

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
$72,292
Median income
$75,000
Median home value
33.6%
Bachelor's or higher

The verdict

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
3th 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 South Dakota average), while per-capita income is $19,431. 41.5% of residents live below the poverty line, and the unemployment rate reads 0.0%. On housing, the median home value is $75,000 (61% below the state average) with median rent at - per month, and 72.7% of occupied units are owner-occupied.

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 -. Beyond these figures, 3 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Grant County, letting you compare 57251 to its immediate surroundings rather than a national baseline alone.

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

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 57251?

28.5

Median Age

82.9%

Male

17.1%

Female

20.6%

Foreign-Born

White 63.6%
African American 12.3%
Asian 20.6%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 3.5%
Hispanic or Latino 0.0%

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

$19,431

Per Capita Income

41.5%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 57251 ranks nationally

Marvin, SD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$72,292 Top 50% higher than 50% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US 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?

High School Graduate or Higher 48.9%
Bachelor's Degree or Higher 33.6%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

50

Total Housing Units

33

Occupied Units

17

Vacant Units

2.36

Avg Household Size

Occupancy Type

Owner 72.7%
Renter 27.3%

$75,000

Median Home Value

-61% vs state

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.

residents

What this shows Among its immediate neighbors, ZIP 57251 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 57251 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

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.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
57269 Twin Brooks, SD 413 7.1 mi
57279 Wilmot, SD 1,058 10.2 mi
57263 South Shore, SD 450 10.3 mi

More ZIP Codes in Grant County

57252 standard
Milbank, SD
Pop: 4,800
57216 standard
Big Stone City, SD
Pop: 1,044
57259 standard
Revillo, SD
Pop: 505
57269 standard
Twin Brooks, SD
Pop: 413
57265 standard
Strandburg, SD
Pop: 225
57264 standard
Stockholm, SD
Pop: 219

Related Areas

Grant County Marvin, SD South Dakota

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.

Read our methodology to see how this data is sourced, computed, and verified.