PlainZIP

Gayville, SD · standard

ZIP Code 57031

Yankton County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

741
6/sq mi
$64,794
Median income
$137,100
Median home value
13.9%
Bachelor's or higher

The verdict

Gayville pairs a below-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.

38th pct
household income, US ZIPs
22th pct
home value, US ZIPs
6
people per sq mi
88%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57031 against every reporting US ZIP.

ZIP code 57031 is a sparsely populated ZIP (a standard USPS delivery area) in Gayville, Yankton County, South Dakota, home to just 741 residents across 125.6 square miles, a density of 6 people per square mile, in the Chicago time zone.

ZIP 57031 reports a modest median household income of $64,794 (15% below the South Dakota average), while per-capita income is $42,104. Local economic indicators show a 5.4% poverty rate alongside 0.0% unemployment. Median home value sits at $137,100 (29% below the state average), median rent at $602 a month, and owner-occupancy at 88.1%.

Formal educational attainment runs low here: just 13.9% of adults hold a bachelor's degree or higher, the median age is 42.6, and the average commute is -. To put 57031 in local context, 5 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Yankton County, for a geography-aware comparison.

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 57031, Gayville, 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

741

Population

125.6

Area (sq mi)

6

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 57031?

42.6

Median Age

57.8%

Male

42.2%

Female

2.4%

Foreign-Born

White 85.5%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 1.8%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 10.3%
Hispanic or Latino 7.1%

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?

$64,794

Median Household Income

-15% vs state

$42,104

Per Capita Income

5.4%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 57031 ranks nationally

Gayville, SD household income vs. every US ZIP code

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

$64,794 38th percentile higher than 38% 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 45.2%
Bachelor's Degree or Higher 13.9%

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

What does housing look like?

429

Total Housing Units

394

Occupied Units

35

Vacant Units

1.99

Avg Household Size

Occupancy Type

Owner 88.1%
Renter 11.9%

$137,100

Median Home Value

-29% vs state

$602

Median Rent

1964

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 8 business establishments in ZIP 57031, employing approximately 41 people with a combined annual payroll of $2,509,000.

8

Businesses

41

Employees

$2.5M

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 57031 vs 57072 →

ZIP 57031 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 57031 ranks the most populous - useful context the national average alone can't give.

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

ZIP 57031 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 57031 ranks #6 of 6 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
57072 Volin, SD 584 7.5 mi
68774 Saint Helena, NE 348 6.4 mi
68792 Wynot, NE 407 9.9 mi
57046 Mission Hill, SD 626 8.6 mi
57073 Wakonda, SD 711 11.0 mi

More ZIP Codes in Yankton County

57078 standard
Yankton, SD
Pop: 19,121
57037 standard
Irene, SD
Pop: 819
57046 standard
Mission Hill, SD
Pop: 626
57072 standard
Volin, SD
Pop: 584
57067 standard
Utica, SD
Pop: 537
57040 standard
Lesterville, SD
Pop: 389

Related Areas

Yankton County Gayville, SD South Dakota

Frequently Asked Questions

What county is ZIP code 57031 in? ▼
ZIP code 57031 (Gayville) is located in Yankton County, South Dakota. Yankton County contains multiple ZIP codes, see the full list at /counties/yankton-sd.
What is the population of ZIP code 57031? ▼
ZIP code 57031 in Gayville, SD has a population of 741 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57031? ▼
The median household income in ZIP 57031 is $64,794, which is 15% below the national average of $76,288.
What is the average home value in ZIP 57031? ▼
The median home value in ZIP 57031 is $137,100, which is 51% below the national average of $278,155.
What is the demographic makeup of ZIP 57031? ▼
The largest racial group in ZIP 57031 is White at 85.5%. Hispanic or Latino residents make up 7.1% of the population.
How many businesses are in ZIP code 57031? ▼
ZIP code 57031 has 8 business establishments employing approximately 41 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 57031? ▼
In ZIP code 57031, 45.2% of residents aged 25+ have a high school diploma or higher, and 13.9% 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 57031? ▼
In ZIP code 57031, approximately 88.1% of occupied housing units are owner-occupied and 11.9% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57031? ▼
The poverty rate in ZIP code 57031 is 5.4% 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.