ZIP Code 57201 — Watertown city, SD Demographics & Data

ZIP code 57201 covers Watertown, SD in Codington County with a population of about 26,375.

At a glance, the area shows median age of 39.5 (near the U.S. median).

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

Watertown, 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 57201 is about $64,809 — about 14% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 10.4%; unemployment rate near 2.1%; 21.3% of adults with a bachelor’s degree or higher (about 12.4 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Manufacturing, Retail trade, and Healthcare; about 5.9% of workers reporting work-from-home (about 9.3 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 $223,600 — about 36% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $757 (about 35% below the U.S. median rent ($1,163)), and owner-occupancy near 66.0% (roughly in line with the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 57201 in Watertown, SD, a household would need roughly $62,000 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 $1,436. That is roughly in line with the local median household income ($64,809). 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 Watertown city, SD as Relatively Low (composite score 61.8), which is near the middle of the national distribution. The strongest component scores on US5 are wildfire (71.0) and flood (65.2). 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 Watertown city, SD show little to no average snow and around 22.7 inches of annual precipitation.

IRS migration statistics show a net inflow of about 1,620 for ZIP 57201 (Watertown city, 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.