Custer, SD ZIP Codes
One ZIP code serves Custer, South Dakota: 57730. Together they are home to 5,596 residents in 2,733 households. That is more than the 2,341 people counted inside Custer city limits, because these ZIP codes reach past its boundary.
Custer city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 2,341 |
| Households | 1,169 |
| Median household income | $78,369 |
| Median home value | $235,600 |
| Median age | 51.2 |
| Median rent | $968 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 5,596 |
| Households (sum of ZIP codes) | 2,733 |
| Median household income, range across ZIP codes | $83,469 (57730) to $83,469 (57730) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $83,469 |
| Homeowners | 80.4% |
| Households with kids under 18 | 22.2% |
| Moved in the past year | 11.4% |
| Carrier routes in EDDM2GO's route library | 7 routes, 2,734 homes (1 of 1 ZIP codes) |
Every ZIP code in Custer
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 57730 | Custer | 5,596 | 2,733 | $83,469 | $378,800 | 80.4% | 22.2% | 11.4% | 7 | 2,931 | 0% of its land; mailing city |
A ZIP code is listed for Custer when at least 10% of its land lies inside Custer city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Custer. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Custer.
Counties
- Custer County — 9 ZIP codes
Price a mailing to Custer ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Custer, SD?
- 57730. A ZIP code is listed for Custer when at least 10% of its land lies inside Custer city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Custer.
- What is the population of Custer, SD?
- The Census Bureau counts 2,341 residents inside Custer city limits (ACS 2020–2024). The 1 ZIP code that serve Custer hold 5,596 residents in all.
- What is the median household income in Custer, SD?
- $78,369 inside Custer city limits, per the Census Bureau. Across its ZIP codes the medians run from $83,469 to $83,469.
- How many carrier routes and mailboxes are in Custer, SD?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 7 carrier routes reaching 2,734 residential and 196 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.