Married men are earning much more money, on average, than everyone else in America, according to a report from the Federal Reserve Bank of St. Louis.
The St. Louis Fed plotted the income of workers with at least a high school diploma by age, gender and marital status and found that the wages of married men are higher than those of single men, married women and single women, and that's true at every age from 20 to 64. The difference is most pronounced at around age 45, when married men's earnings peak.
Guillaume Vandenbroucke, "Married Men Sit Atop the Wage Ladder," Federal Reserve Bank of St. Louis Economic Synopses, No. 24, 2018
This could just be a correlation: The data does "not imply that being married increases a man's wage," Guillaume Vandenbroucke, author of the report, notes. "It might be that men with higher wages are more likely to marry; therefore, the average married man earns a higher wage than the average single man."
Also of note is that married and single women earn very similar wages. That's surprising, says Vandenbroucke, since married women are more likely to have children than single women, and that's "not consistent with the view that the gender wage gap results from women having children earlier in life and losing ground in human capital accumulation relative to men."
In short, the gender wage gap is a complex topic, says Vandenbroucke: "Progress may come from asking different questions: not just why women earn less than men (although not compared with single men), but also why married men earn so much more than everyone else."

Here's the full breakdown of how much each group earns at every age. The numbers, provided by the St. Louis Fed, represent the wage and salary income of employed men and women with at least a high school diploma.
Age 20
Single women: $10,701
Single men: $13,933
Married women: $14,312
Married men: $27,040
At age 20, on average, married men are making $16,339 a year more than single women, $13,107 more than single men and $12,728 more than married women.
Age 25
Single women: $28,241
Single men: $32,585
Married women: $28,356
Married men: $38,355
At age 25, on average, married men are making $10,114 a year more than single women, $5,770 more than single men and $9,999 more than married women.

Age 30
Single women: $36,204
Single men: $41,942
Married women: $40,951
Married men: $55,138
At age 30, on average, married men are making $18,934 a year more than single women, $13,196 more than single men and $14,187 more than married women.
Age 35
Single women: $41,338
Single men: $47,311
Married women: $48,834
Married men: $70,374
At age 35, on average, married men are making $29,036 a year more than single women, $23,063 more than single men and $21,540 more than married women.

Age 40
Single women: $43,103
Single men: $46,610
Married women: $50,621
Married men: $80,125
At age 40, on average, married men are making $37,022 a year more than single women, $33,515 more than single men and $29,504 more than married women.
Age 45
Single women: $48,095
Single men: $49,754
Married women: $51,384
Married men: $85,233
At age 45, on average, married men are making $37,138 a year more than single women, $35,479 more than single men and $33,849 more than married women.

Age 50
Single women: $47,272
Single men: $48,035
Married women: $49,946
Married men: $82,968
At age 50, on average, married men are making $35,696 a year more than single women, $34,933 more than single men and $33,022 more than married women.
Age 55
Single women: $49,753
Single men: $51,102
Married women: $49,661
Married men: $82,545
At age 55, on average, married men are making $32,792 a year more than single women, $31,443 more than single men and $32,884 more than married women.

Age 60
Single women: $47,914
Single men: $49,671
Married women: $46,238
Married men: $79,484
At age 60, on average, married men are making $31,570 a year more than single women, $29,813 more than single men and $33,246 more than married women.
Age 65
Single women: $41,449
Single men: $45,230
Married women: $40,785
Married men: $69,676
At age 65, on average, married men are making $28,227 a year more than single women, $24,446 more than single men and $28,891 more than married women.
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