57239 Grenville, SD Fair Market Rent

What the FMR for ZIP 57239 actually means

HUD publishes Small Area Fair Market Rents at the ZIP code level for designated metros. ZIP 57239 (Grenville, SD) is covered by Day County, SD, so FY 2026 figures here are ZIP-specific: $800 for a 1-bedroom, studio $680, 2-bedroom $990, 3-bedroom $1,370, and 4-bedroom $1,560. These are 40th-percentile gross rents (utilities except telephone), not live asking rents. Housing Choice Voucher payment standards are typically set between 90% and 110% of the applicable FMR/SAFMR.

Because this page uses SAFMR, nearby ZIPs in Day can show different bedroom figures. Against the national benchmark the 1-bedroom SAFMR here is 17% below the US average of $959, and 2% above the SD state average of $784.

For budgeting, the 30% affordability rule says rent should not exceed 30% of gross household income. At the FY 2026 1-bedroom FMR of $800, that implies a household income of $32,000 per year (about $2,667/month) to avoid being cost-burdened, a 2-bedroom at $990 lifts that threshold higher still. ZIP 57239 has a population of 223 residents, so the gap between these FMR figures and local wages shapes how many households qualify as rent-burdened (paying more than 30% of income) or severely burdened (above 50%).