📍 View location on OpenStreetMap (43.860500, -99.575820)
| Data Metric | Local Statistic |
|---|---|
| Postal / Zip Code | 57569 |
| Primary City | Reliance |
| State / Province | SD |
| County | Lyman |
| Total Population | 497 |
| Population Density | 0.5 people/sq mi |
| Timezone | America/Chicago |
| Metric | ZIP 57569 | Lyman County records | SD records |
|---|---|---|---|
| Population estimate | 497 | 3,704 (sum) | 906,188 (sum) |
| Population Density | 0.5 /sq mi | -- | -- |
| County population rank | #4 of 6 | -- | -- |
| State population rank | #211 of 372 | -- | -- |
Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.
| ZIP Code | City | Distance | Population estimate |
|---|---|---|---|
| ZIP 57365 | Oacoma | 8.6 mi | 599 |
| ZIP 57544 | Kennebec | 13.1 mi | 421 |
| ZIP 57325 | Chamberlain | 13.3 mi | 3,335 |
| ZIP 57548 | Lower Brule | 15.6 mi | 1,442 |
| ZIP 57339 | Fort Thompson | 18.1 mi | 1,390 |
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →