Buffalo, SD ZIP Codes
One ZIP code serves Buffalo, South Dakota: 57720. Together they are home to 518 residents in 264 households. That is more than the 278 people counted inside Buffalo town limits, because these ZIP codes reach past its boundary.
Buffalo town limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 278 |
| Households | 161 |
| Median household income | $85,104 |
| Median home value | $114,100 |
| Median age | 57.2 |
| Median rent | $725 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 518 |
| Households (sum of ZIP codes) | 264 |
| Median household income, range across ZIP codes | $79,091 (57720) to $79,091 (57720) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $79,091 |
| Homeowners | 81.1% |
| Households with kids under 18 | 14.4% |
| Moved in the past year | 4.5% |
| Carrier routes in EDDM2GO's route library | 5 routes, 149 homes (1 of 1 ZIP codes) |
Every ZIP code in Buffalo
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 57720 | Buffalo | 518 | 264 | $79,091 | $157,000 | 81.1% | 14.4% | 4.5% | 5 | 153 | 0% of its land; mailing city |
A ZIP code is listed for Buffalo when at least 10% of its land lies inside Buffalo town limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Buffalo. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Buffalo.
Counties
- Harding County — 10 ZIP codes
Price a mailing to Buffalo ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Buffalo, SD?
- 57720. A ZIP code is listed for Buffalo when at least 10% of its land lies inside Buffalo town limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Buffalo.
- What is the population of Buffalo, SD?
- The Census Bureau counts 278 residents inside Buffalo town limits (ACS 2020–2024). The 1 ZIP code that serve Buffalo hold 518 residents in all.
- What is the median household income in Buffalo, SD?
- $85,104 inside Buffalo town limits, per the Census Bureau. Across its ZIP codes the medians run from $79,091 to $79,091.
- How many carrier routes and mailboxes are in Buffalo, SD?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 5 carrier routes reaching 149 residential and 4 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.