ZIP Code 57220 has segments in 2 Counties (Brookings, Hamlin).
The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.
POPULATION | |
|---|---|
| Total Population | 880 (100%) |
| Population in Households | 880 (100.0%) |
| Population in Families | 763 (86.7%) |
| Population in Group Quarters1 | 0 |
| Population Density | 8 |
| Diversity Index2 | 18 |
INCOME | |
| Median Household Income | $119,811 |
| Average Household Income | $130,096 |
| % of Income for Mortgage4 | 18% |
| Per Capita Income | $54,256 |
| Wealth Index5 | 115 |
| Socioeconomic Status Index6 | High (70.0) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 453 (100%) |
| Owner Occupied HU | 296 (65.3%) |
| Renter Occupied HU | 71 (15.7%) |
| Vacant Housing Units | 86 (19.0%) |
| Median Home Value | $342,453 |
| Average Home Value | $378,868 |
| Housing Affordability Index3 | 124 |
HOUSEHOLDS | |
| Total Households | 367 |
| Average Household Size | 2.40 |
| Family Households | 268 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | 1.40% | 0.74% |
| Households | 0.53% | 1.07% |
| Families | -0.38% | |
| Median Household Income | 1.50% | |
| Per Capita Income | 2.15% | |
| Owner Occupied HU | 2.87% |
The table below compares 57220 to the other 371 ZIP Codes in South Dakota by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 153 | 59th |
| Population Density | # 142 | 62nd |
| Median Household Income | # 4 | 99th |
| Housing Affordability Index | # 255 | 69th |
| Per Capita Income | # 21 | 95th |
| Diversity Index | # 233 | 38th |
Additional comparisons and rankings can be made with a VERY EASY TO USE South Dakota Census Data Comparison Tool.