Sully County, SD ZIP Codes
5 ZIP codes cover all or part of Sully County, South Dakota: 57501, 57564, 57522, 57536 and 57520. The Census Bureau counts 1,526 residents in the county, with a median household income of $72,578 and a median home value of $205,400. Its largest communities include Onida and Agar.
Sully County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 1,526 |
| Households | 637 |
| Median household income | $72,578 |
| Median home value | $205,400 |
| Median age | 46.9 |
| Median rent | $842 |
All 5 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 19,204 |
| Households (sum of ZIP codes) | 7,897 |
| Median household income, range across ZIP codes | $81,791 (57501) to $81,791 (57501) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $81,791 |
| Homeowners | 72.1% |
| Households with kids under 18 | 31.3% |
| Moved in the past year | 13.1% |
| Carrier routes in EDDM2GO's route library | 7 routes, 451 homes (4 of 5 ZIP codes) |
Every ZIP code in Sully County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 57501 | Pierre | 17,326 | 7,043 | $81,791 | $245,100 | 72.0% | 32.8% | 13.7% | — | — | 42% of its land |
| 57564 | Onida | 962 | 399 | $74,297 | $210,600 | 80.7% | 21.3% | 7.3% | 3 | 209 | 98% of its land |
| 57522 | Blunt | 521 | 245 | $72,188 | $215,000 | 69.8% | 12.2% | 8.7% | 2 | 71 | 31% of its land |
| 57536 | Harrold | 277 | 133 | $53,125 | $90,000 | 58.6% | 30.1% | 4.0% | 1 | 142 | 29% of its land |
| 57520 | Agar | 118 | 77 | $50,417 | $118,800 | 66.2% | 3.9% | 10.2% | 1 | 40 | 100% of its land |
A ZIP code is listed for Sully County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
Price a mailing to Sully County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Sully County, SD?
- 57501, 57564, 57522, 57536 and 57520. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Sully County?
- 1,526 residents in 637 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Sully County?
- $72,578 for the county as a whole. Its ZIP codes range from $81,791 (57501) to $81,791 (57501).
- How many carrier routes and mailboxes are in Sully County?
- For the 4 of 5 ZIP codes in EDDM2GO's stored route library: 7 carrier routes reaching 451 residential and 11 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.