ZIP Code 57735 has segments in 3 Counties (Custer, Fall River, Sioux).
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 | 1,456 (100%) |
| Population in Households | 1,456 (100.0%) |
| Population in Families | 1,161 (79.7%) |
| Population in Group Quarters1 | 0 |
| Population Density | 1 |
| Diversity Index2 | 25 |
INCOME | |
| Median Household Income | $64,062 |
| Average Household Income | $74,113 |
| % of Income for Mortgage4 | 19% |
| Per Capita Income | $34,053 |
| Wealth Index5 | 66 |
| Socioeconomic Status Index6 | Moderate (56.0) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 916 (100%) |
| Owner Occupied HU | 571 (62.3%) |
| Renter Occupied HU | 98 (10.7%) |
| Vacant Housing Units | 247 (27.0%) |
| Median Home Value | $197,768 |
| Average Home Value | $341,138 |
| Housing Affordability Index3 | 111 |
HOUSEHOLDS | |
| Total Households | 669 |
| Average Household Size | 2.18 |
| Family Households | 403 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | 1.51% | 0.90% |
| Households | 0.82% | 0.71% |
| Families | 0.25% | |
| Median Household Income | 1.99% | |
| Per Capita Income | 1.12% | |
| Owner Occupied HU | 1.30% |
The table below compares 57735 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 | # 104 | 72nd |
| Population Density | # 309 | 15th |
| Median Household Income | # 277 | 26th |
| Housing Affordability Index | # 201 | 54th |
| Per Capita Income | # 259 | 30th |
| Diversity Index | # 146 | 61st |
Additional comparisons and rankings can be made with a VERY EASY TO USE South Dakota Census Data Comparison Tool.