ZIP Code 48189 — Whitmore Lake CDP, MI Demographics & Data

ZIP code 48189 covers Whitmore Lake, MI in Washtenaw County with a population of about 13,748.

At a glance, the area shows median age of 42.5 versus a U.S. median of about 38.9.

It sits in telephone area code 734; U.S. House district MI-6; the DETROIT media market.

Median household income in ZIP 48189 is about $82,433 — about 10% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 6.9%; unemployment rate near 2.2%; 38.4% of adults with a bachelor’s degree or higher (about 4.7 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Manufacturing, and Education; about 19.9% of workers reporting work-from-home (about 4.8 points above 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 $286,200 — about 18% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,129 (about 3% below the U.S. median rent ($1,163)), and owner-occupancy near 79.4% (about 14.0 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 48189 in Whitmore Lake, MI, a household would need roughly $79,000 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 $1,838. That is roughly in line with the local median household income ($82,433). 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 Whitmore Lake CDP, MI as Relatively Moderate (composite score 89.3), which is elevated versus much of the country. The strongest component scores on US5 are flood (90.3) and hurricane (48.3). 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 Whitmore Lake CDP, MI show little to no average snow and around 34.5 inches of annual precipitation.

IRS migration statistics show a net inflow of about 538 for ZIP 48189 (Whitmore Lake CDP, MI) 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.