ZIP Code 57645 — Morristown town, SD Demographics & Data

ZIP code 57645 covers Morristown, SD in Corson County with a population of about 149.

At a glance, the area shows median age of 51.1 versus a U.S. median of about 38.9.

It sits in telephone area codes 605, 701; U.S. House district SD-00; the MINOT - BISMARCK - DICKINSON media market.

Median household income in ZIP 57645 is about $73,000 — about 3% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 13.4%; unemployment rate near 0.0%; 26.1% of adults with a bachelor’s degree or higher (about 7.6 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Agriculture, Education, and Construction; about 40.8% of workers reporting work-from-home (about 25.6 points above the U.S. share (15.2%)); a mean commute of about 45.0 minutes (U.S. average near 26.8).

Median home value is about $37,100 — about 89% below the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 90.5% (about 25.1 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 57645 in Morristown, SD, a household would need roughly $10,000 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 $238. That sits below the local median household income ($73,000), suggesting the typical household income is closer to a workable buy-in level under these assumptions. 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 Morristown town, SD as Very Low (composite score 38.1), which is relatively lower than many U.S. communities. The strongest component scores on US5 are wildfire (77.3) and flood (16.1). 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 Morristown town, SD show little to no average snow and around 16.5 inches of annual precipitation.

IRS migration statistics show a net inflow of about 9 for ZIP 57645 (Morristown 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.