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ZIP code 84121 encompasses a growing suburban community in Cottonwood Heights, Utah, with a total recorded population of 39,759 residents. A median age of 40.4 places this community on the slightly older side of the national median, suggesting a more settled residential character. Established homeowners, older workers, and a growing share of pre-retirement adults shape the community's daily life. About 18.9% of the population is aged 65 or older, a substantial share that places this ZIP code among the more senior-concentrated areas in the region. This older cohort shapes community priorities around healthcare access, fixed-income living, and Medicare utilization. The gender balance is essentially equal, with males at 49.3% and females at 50.7% of the total population. This near-parity reflects a typical residential community without significant gender skew from institutions, industries, or other structural factors. White non-Hispanic residents form the largest share of the population at 85.5%. Hispanic or Latino residents account for 6.4% of the total, a visible and meaningful presence in the community. Asian residents comprise 3.1%. Black or African American residents account for 0.7%. Minority populations are present but not dominant, giving the community a largely homogeneous demographic profile with modest diversity.
The median household income of 108,873 dollars indicates a high-income area by both state and national standards. Households here tend to have strong earning power, driven by professional employment, entrepreneurship, or dual high-wage earners. While this level of income affords significant financial flexibility, healthcare planning remains important, and Medicare-eligible residents in this bracket may look for premium plans with robust benefits and minimal out-of-pocket exposure. Looking at the income distribution more broadly, a notable 462 households report annual income below $10,000, a level that typically encompasses the very poor, elderly residents on minimal Social Security, and households with limited or no employment income. In the upper-middle range, a solid 1,794 households earn between $100,000 and $125,000 per year, reflecting a healthy middle-income core. At the top of the scale, high earners are prominent, with 2,782 households reporting income above $200,000 per year, a concentration of wealth that distinguishes this area from most Utah ZIP codes. The high-income profile of this ZIP code suggests a workforce anchored in professional services, technology, finance, healthcare leadership, or executive management. Utah's growing tech sector and favorable business environment have helped concentrate high-wage earners in communities with this kind of income profile.