Oacoma, SD · standard
ZIP Code 57365
Lyman County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 522
- 3/sq mi Low-density area
- $76,000
- Median income Near-median income area
- $218,400
- Median home value Near-median home value
- 23.6%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Oacoma pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.
- Top 44%
- household income, US ZIPs
- 49th pct
- home value, US ZIPs
- 3
- people per sq mi
- 80%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57365 against every reporting US ZIP.
ZIP code 57365 is a sparsely populated ZIP (a standard USPS delivery area) in Oacoma, Lyman County, South Dakota, home to just 522 residents across 158.2 square miles, a density of 3 people per square mile, in the Chicago time zone.
ZIP 57365 lands in the middle-income range, with a median household income of $76,000 (1% below the average South Dakota ZIP), while per-capita income is $56,943. The poverty rate is 7.0%, with unemployment at 5.8%; those measures add context to the income figure. Median home value is $218,400 (14% above the average South Dakota ZIP) and median rent is $883; 79.5% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 23.6% of adults hold a bachelor's degree or higher, the median age is 41.2, and the average commute is -. The page also surfaces 1 ZIP codes within roughly 10 miles and 5 more in Lyman County, so 57365 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 →
Top industries in ZIP 57365
Top 5 sectors by establishment count in Oacoma, SD
Which industries have the most business establishments in ZIP 57365.
- Accommodation and food services
Accommodation and food services
9 establishments
- Retail trade
Retail trade
8 establishments
- Construction 3
Construction
3 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
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 57365, Oacoma, 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
522
Population
158.2
Area (sq mi)
3
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 57365?
41.2
Median Age
59.3%
Male
40.7%
Female
1.7%
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?
$76,000
Median Household Income
-1% vs state ZIP avg
$56,943
Per Capita Income
7.0%
Poverty Rate
5.8%
Unemployment Rate
How ZIP 57365 ranks among South Dakota ZIPs
Oacoma, 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)
$76,000 Top 47% higher than 53% 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
333housing units
333
Total Housing Units
264
Occupied Units
69
Vacant Units
2.27
Avg Household Size
Occupancy Type
$218,400
Median Home Value
+14% vs state ZIP avg
$883
Median Rent
1993
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 24 business establishments in ZIP 57365, employing approximately 256 people with a combined annual payroll of $7,871,000.
24
Businesses
256
Employees
$7.9M
Annual Payroll
3
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Accommodation and food services | 9 | 37.5% |
| Retail trade | 8 | 33.3% |
| Construction | 3 | 12.5% |
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 57365 vs 57325 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 57325 | Chamberlain, SD | 3,054 | 7.1 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 57365, 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 Lyman County
Related Areas
Frequently Asked Questions
What county is ZIP code 57365 in?
ZIP code 57365 (Oacoma) is located in Lyman County, South Dakota. Lyman County contains multiple ZIP codes, see the full list at /counties/lyman-sd.
What is the population of ZIP code 57365?
ZIP code 57365 in Oacoma, SD has a population of 522 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57365?
The median household income in ZIP 57365 is $76,000, which is 0% below the national average of $76,288.
What is the average home value in ZIP 57365?
The median home value in ZIP 57365 is $218,400, which is 21% below the national average of $278,155.
What is the demographic makeup of ZIP 57365?
The largest racial group in ZIP 57365 is White at 96.3%. Hispanic or Latino residents make up 1.8% of the population.
How many businesses are in ZIP code 57365?
ZIP code 57365 has 24 business establishments employing approximately 256 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 57365?
The top industries by establishment count in ZIP 57365 are: Accommodation and food services (9), Retail trade (8), Construction (3). There are 3 industry sectors represented in total.
What is the education level in ZIP code 57365?
In ZIP code 57365, 66.9% of residents aged 25+ have a high school diploma or higher, and 23.6% 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 57365?
In ZIP code 57365, approximately 79.5% of occupied housing units are owner-occupied and 20.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57365?
The poverty rate in ZIP code 57365 is 7.0% 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 57365's numbers, next.
- See how ZIP 57365 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Oacoma, SD ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.