Timber Lake, SD · standard
ZIP Code 57656
Dewey County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 723
- 1/sq mi
- $66,094
- Median income
- $86,300
- Median home value
- 23.8%
- Bachelor's or higher
The verdict
Timber Lake pairs a below-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- 40th pct
- household income, US ZIPs
- 6th pct
- home value, US ZIPs
- 1
- people per sq mi
- 71%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57656 against every reporting US ZIP.
ZIP code 57656 is a sparsely populated ZIP (a standard USPS delivery area) in Timber Lake, Dewey County, South Dakota, home to just 723 residents across 1205.0 square miles, a density of 1 people per square mile, in the Denver time zone.
ZIP 57656 reports a modest median household income of $66,094 (14% below the South Dakota average), while per-capita income is $30,983. Poverty here runs at 13.2%, with unemployment measured at 4.7%. Median home value sits at $86,300 (55% below the state average), median rent at $546 a month, and owner-occupancy at 71.4%.
Educational attainment sits below the national norm: 23.8% of adults hold a bachelor's degree or higher, the median age is 28.1, and the average commute is -. We also surface 1 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Dewey County, so you can benchmark 57656 against its immediate geography rather than a national average 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 →
Top industries in ZIP 57656
Top 5 sectors by establishment count in Timber Lake, SD
Which industries have the most business establishments in ZIP 57656.
- Construction
Construction
7 establishments
- Retail trade
Retail trade
5 establishments
- Other services (except public administration)
Other services (except public administration)
5 establishments
- Health care and social assistance
Health care and social assistance
4 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 57656, Timber Lake, 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
723
Population
1205.0
Area (sq mi)
1
People / sq mi
Denver
Time Zone
standard
ZIP Type
Who lives in ZIP 57656?
28.1
Median Age
50.8%
Male
49.2%
Female
0.9%
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?
$66,094
Median Household Income
-14% vs state
$30,983
Per Capita Income
13.2%
Poverty Rate
4.7%
Unemployment Rate
How ZIP 57656 ranks nationally
Timber Lake, SD household income vs. every US ZIP code
Median household income, the full national distribution, with this ZIP marked
$66,094 40th percentile higher than 40% of 30,318 US ZIPs
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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
416
Total Housing Units
371
Occupied Units
45
Vacant Units
2.63
Avg Household Size
Occupancy Type
$86,300
Median Home Value
-55% vs state
$546
Median Rent
1970
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 31 business establishments in ZIP 57656, employing approximately 145 people with a combined annual payroll of $5,792,000.
31
Businesses
145
Employees
$5.8M
Annual Payroll
4
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 7 | 22.6% |
| Retail trade | 5 | 16.1% |
| Other services (except public administration) | 5 | 16.1% |
| Health care and social assistance | 4 | 12.9% |
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 57656 vs 57661 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 57661 | Whitehorse, SD | 88 | 10.7 mi |
More ZIP Codes in Dewey County
Related Areas
Frequently Asked Questions
What county is ZIP code 57656 in? ▼
What is the population of ZIP code 57656? ▼
What is the median household income in ZIP 57656? ▼
What is the average home value in ZIP 57656? ▼
What is the demographic makeup of ZIP 57656? ▼
How many businesses are in ZIP code 57656? ▼
What are the main industries in ZIP code 57656? ▼
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What percentage of residents own vs. rent in ZIP 57656? ▼
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Read our methodology to see how this data is sourced, computed, and verified.