The American middle class — long the backbone of the economy — has been steadily shrinking for five decades. Here’s what the data shows and what it means.
Middle Class Definition
The Pew Research Center defines middle class as households earning between two-thirds and double the median household income, adjusted for household size.
| Income Tier | Income Range (Family of 3, 2024 income) | % of Adults (2021) |
|---|---|---|
| Lower income | Under $66,700 | 29% |
| Middle income | $66,700 - $200,000 | 50% |
| Upper income | Over $200,000 | 21% |
Sources: income ranges from Pew Research Center, “Trends in income and wealth inequality” (October 2026), for 2024 incomes; shares of adults from Pew’s April 2022 analysis for 2021. Pew’s May 2024 report, which counts all Americans rather than adults, puts the middle-class share at 51% in 2023.
How the Middle Class Has Changed
| Year | Lower Income | Middle Income | Upper Income |
|---|---|---|---|
| 1971 | 25% | 61% | 14% |
| 2021 | 29% | 50% | 21% |
Share of U.S. adults by household income tier. Source: Pew Research Center (April 2022). Pew says the middle-class share fell in each decade in between; its separate series for all Americans shows 61% in 1971 and 51% in 2023.
Key Takeaway
Among adults, the middle class lost 11 percentage points from 1971 to 2021:
- 7 points moved UP to upper income (positive)
- 4 points moved DOWN to lower income (concerning)
More people have gotten richer than poorer, but the polarization — fewer people in the middle — creates economic fragility.
Why the Middle Class Is Struggling
| Factor | Impact | Detail |
|---|---|---|
| Housing costs | Very high | Home prices grew 3x faster than wages since 2000 |
| Healthcare costs | High | Average family pays $7,000/year just in premiums |
| Education costs | High | College costs tripled (inflation-adjusted) since 1980 |
| Childcare costs | High | The Labor Department found 2022 full-day care for one child ranged from $6,552 to $15,600 a year |
| Wage stagnation | Moderate | Real wages grew only ~17% in 50 years |
| Globalization | Moderate | Manufacturing jobs moved overseas, reducing middle-class jobs |
| Technology | Mixed | Created high-paying jobs but eliminated mid-skill jobs |
| Student debt | Moderate | Average graduate carries $29,400 |
| Two-income dependency | High | In 1970, 90% of married couples had one earner; now most need two |
What Middle Class Means for Your Finances
| If you’re middle class… | Financial priority |
|---|---|
| Income $66.7K-$100K | Focus on reducing housing costs, building emergency fund |
| Income $100K-$150K | Maximize 401(k), start investing outside retirement |
| Income $150K-$200K | Aggressive retirement savings, consider homeownership if renting |
| High cost-of-living area | Consider geographic arbitrage (move to cheaper area) |
| Dual income, no kids | This is the wealth-building window — maximize savings |
| Family with kids | Childcare costs temporary — maintain retirement contributions |
Related: Average Income | Median Household Income | Wealth Inequality | Cost of Living by State
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