ZIP Code 57427 — Bath CDP, SD Demographics & Data

ZIP code 57427 covers Bath, SD in Brown County with a population of about 512.

At a glance, the area shows median age of 44.4 versus a U.S. median of about 38.9.

It sits in telephone area code 605; U.S. House district SD-00; the SIOUX FALLS (MITCHELL) media market.

Bath, SD is tagged as a Tribal Nation community context (place names indicate a tribal nation community). Local search often includes tribal government offices, public safety, and Indian Health Service (IHS) / wellness topics alongside standard ZIP demographics.

Median household income in ZIP 57427 is about $82,308 — about 10% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 9.4%; unemployment rate near 0.0%; 19.2% of adults with a bachelor’s degree or higher (about 14.5 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Agriculture, and Wholesale trade; about 6.3% of workers reporting work-from-home (about 8.9 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $384,100 — about 10% above the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 86.1% (about 20.7 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 57427 in Bath, SD, a household would need roughly $106,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $2,467. That is about 29% above the local median household income ($82,308), so the median earner would likely stretch or need a larger down payment. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

FEMA’s National Risk Index rates natural-hazard risk for Bath CDP, SD as Relatively Low (composite score 73.5), which is elevated versus much of the country. The strongest component scores on US5 are wildfire (77.1) and flood (63.1). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Bath CDP, SD show little to no average snow and around 21.8 inches of annual precipitation.

IRS migration statistics show a net inflow of about 31 for ZIP 57427 (Bath CDP, SD) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.