ZIP Code 57312 — Alpena town, SD Demographics & Data

ZIP code 57312 covers Alpena, SD in Beadle County with a population of about 619.

At a glance, the area shows median age of 40.8 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.

Alpena, 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 57312 is about $83,750 — about 11% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 17.2%; unemployment rate near 0.0%; 5.2% of adults with a bachelor’s degree or higher (about 28.5 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Manufacturing, Agriculture, and Other services; about 9.9% of workers reporting work-from-home (about 5.3 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing tenure and rents show median gross rent around $493 (about 58% below the U.S. median rent ($1,163)), and owner-occupancy near 86.5% (about 21.0 points above the national owner-occupancy rate (65.4%)).

FEMA’s National Risk Index rates natural-hazard risk for Alpena town, SD as Relatively Low (composite score 47.1), which is near the middle of the national distribution. The strongest component scores on US5 are wildfire (74.7) and flood (45.6). 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 Alpena town, SD show little to no average snow and around 25.7 inches of annual precipitation.

IRS migration statistics show a net inflow of about 38 for ZIP 57312 (Alpena town, 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.