# googletag.cmd.push(function() { googletag.display('div-gpt-ad-1541446805030-0'); }); Promoted from the Ricochet Member Feed by Editors Created with Sketch. Income Classes, Defined

I created the table below when I realized that people’s intuition about who was in the American middle class corresponded (roughly) to low \$30k to around \$100k in annual income and that the logarithm of those numbers happened to be about 4.5 and 5, respectively. To me, this range seems about right for married couples. I then extended the principle to create ranges for the other classes. So, lower class for married couples is between \$10^4 (\$10,000) and \$10^4.5 (\$31,623), and upper class is between \$10^5 (\$100,000) and \$10^5.5 (\$316,228).

 Class single married 1 kid 2 kids 3 kids 4 kids 5 kids bottom lower \$7,071 \$10,000 \$12,247 \$14,142 \$15,811 \$17,321 \$18,708 lower \$10,379 \$14,678 \$17,977 \$20,758 \$23,208 \$25,423 \$27,460 top lower \$15,234 \$21,544 \$26,386 \$30,468 \$34,065 \$37,316 \$40,306 bottom middle \$22,361 \$31,623 \$38,730 \$44,721 \$50,000 \$54,772 \$59,161 middle \$32,821 \$46,416 \$56,848 \$65,642 \$73,390 \$80,395 \$86,836 top middle \$48,175 \$68,129 \$83,441 \$96,349 \$107,722 \$118,003 \$127,458 bottom upper \$70,711 \$100,000 \$122,474 \$141,421 \$158,114 \$173,205 \$187,083 upper \$103,789 \$146,780 \$179,768 \$207,578 \$232,079 \$254,230 \$274,600 top upper \$152,342 \$215,443 \$263,863 \$304,683 \$340,646 \$373,159 \$403,058 bottom wealthy \$223,607 \$316,228 \$387,298 \$447,214 \$500,000 \$547,723 \$591,608

To find the corresponding ranges for households of other sizes, I scaled it by the square root of the number of people (multiply singles bracket by sqrt[household size]) because I’ve heard that’s a good approximation of the additional costs when you add a person.