US ZIP Code
57251

Marvin, SD

Grant County  ·  South Dakota

● Active
👥 224 Population ↑ 30% since 2019
💰 $78,125 Median HH Income
≈ Avg ↑ 7% since 2019
🎂 21.4 Median Age ↓ 34% since 2019
🏠 $115,600 Median Home Value
▼ 59% below avg ↓ 25% since 2019
🎓 29.5% College Grads
▼ 24% below avg
📊 0.0% Unemployment
▼ 100% below avg
ZIP Code Details
ZIP Code57251
CityMarvin
StateSouth Dakota (SD)
CountyGrant County
Area Code605
Elevation1,752 ft
Latitude45.276515
Longitude-96.934706
TimezoneChicago (DST)
FIPS46051
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 80.8% (181) Female 19.2% (43) ♀

Race & Ethnicity

White: 51.8%Black: 19.6%Asian: 18.3%Other: 1.3%Race
White51.8%
Black19.6%
Asian18.3%
Other1.3%

Age Breakdown

Under 5
2%
5–17
25%
18–24
28%
25–44
21%
45–64
15%
65+
4%

Key Indicators

Median Age21.4 yrs ↓ 34% since 2019
Avg Household Size2.32
Below Poverty49.6% ▲ 396% above avg
College Grads29.5% ▼ 24% below avg
Unemployment0.0% ▼ 100% below avg
HS Graduate22 (23.2%)
Some College12 (12.6%)
Associates33 (34.7%)
Bachelors26 (27.4%)
Graduate Degree2 (2.1%)

Education

HS Grad: 23.2%Some College: 12.6%Associates: 34.7%Bachelors: 27.4%Graduate: 2.1%Edu
HS Grad23.2%
Some College12.6%
Associates34.7%
Bachelors27.4%
Graduate2.1%
Housing & Income

Housing Tenure

Owner: 73.7%Renter: 26.3%Tenure
Owner73.7%
Renter26.3%

Home Value Distribution

Under $50k
21%
$50k–100k
11%
$100k–150k
29%
$150k–200k
25%
Over $500k
14%

Financials

Median HH Income$78,125 ≈ Avg ↑ 7% since 2019
Median Home Value$115,600 ▼ 59% below avg ↓ 25% since 2019
Home/Income Ratio1.5x (nat avg ~3.5x)
Total Units49
Vacant Units11
Avg HH Size2.32

Income Distribution

Under $25k
16%
$25k–50k
11%
$50k–75k
19%
$75k–100k
24%
$100k–150k
22%
Over $200k
8%
Employment & Commute

How People Get to Work

Drove Alone
39%
Walked
22%
Work From Home
39%

Commute Time

Under 15 min
38%
15–30 min
13%
30–45 min
38%
Over 45 min
13%
Housing Stock

Year Built

Before 1940
2%
1940s–1950s
11%
1960s–1970s
17%
1980s–1990s
17%
2000+
53%

Summary

Total Units49
Vacant11
Owner Occupied73.7%
Renter Occupied26.3%
Avg HH Size2.32
Frequently Asked Questions
ZIP code 57251 is in Marvin, SD, in Grant County.
ZIP code 57251 is located in South Dakota (SD).
ZIP code 57251 is in Grant County, SD.
ZIP 57251 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 57251 is 224 people (ACS 2023).
The median household income in ZIP code 57251 is $78,125 (ACS 2023).
The median home value in ZIP 57251 is $115,600 (ACS 2023).
About ZIP Code 57251

ZIP code 57251 is located in Marvin, South Dakota, within Grant County. With a population of 224, this is a sparsely populated ZIP code with a young community — the median age is 21.4 years. Economically, 57251 is a middle-income ZIP code: the median household income of $78,125 is near the national average.

Real estate in ZIP code 57251 represents one of the more affordable housing markets in the country. The median home value of $115,600 is well below the national average. Homeownership is strong here — 73.7% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have decreased by 25% since 2019.

The population of 57251 is majority White (51.79%). Residents are moderately educated — 29.5% hold a bachelor's degree or higher, which is below the national average. Poverty affects a significant share of residents at 49.6%. Household income has grown by 7% since 2019.

A notably high share of workers — 37% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 37%.

Overall, ZIP code 57251 in Marvin, SD is characterized as middle-income, moderately educated, a young community, and predominantly owner-occupied. With 224 residents, a median household income of $78,125, and a median home value of $115,600, it offers a clear picture of life in this part of South Dakota.