The median income of Mercer residents was $29,926 per year, adjusted for inflation. It had 821 households with a population of 1,698.
The city with the highest median resident income in the state was Fox Chapel with $90,034 per year after adjusting for inflation – $60,108 more than Mercer. It had 1,821 households with a population of 5,331.
The city with the lowest median resident income in the state was Loretto with $4,572 per year after adjusting for inflation – $25,354 less than Mercer. It had 103 households with a population of 1,195.
Top 100 cities by earnings per resident (2018)
| Rank | City | Earnings per resident |
|---|---|---|
| 1 | Fox Chapel | $90,034 |
| 2 | Devon | $79,567 |
| 3 | Chesterbrook | $75,718 |
| 4 | Birmingham | $73,750 |
| 5 | Edgeworth | $73,571 |
| 6 | Woodside | $69,219 |
| 7 | Mount Gretna | $68,125 |
| 8 | Ben Avon Heights | $66,607 |
| 9 | Eagles Mere | $63,750 |
| 10 | Sewickley Heights | $63,571 |
| 11 | Rosslyn Farms | $62,000 |
| 12 | West Conshohocken | $61,324 |
| 13 | Thornburg | $60,833 |
| 14 | Rose Valley | $59,706 |
| 15 | Glen Osborne | $59,423 |
| 16 | Blue Bell | $58,818 |
| 17 | Skippack | $57,614 |
| 18 | Noblestown | $57,500 |
| 19 | Sunrise Lake | $57,214 |
| 20 | Woodbourne | $56,847 |
| 21 | Seven Fields | $56,472 |
| 22 | Bradford Woods | $55,114 |
| 23 | Franklin Park | $54,711 |
| 24 | Narberth | $54,681 |
| 25 | Bear Creek Village | $54,167 |
| 26 | Sewickley Hills | $53,906 |
| 27 | Newtown Grant | $53,772 |
| 28 | Penn Wynne | $53,576 |
| 29 | Bakerstown | $52,959 |
| 30 | Exton | $52,895 |
| 31 | Maple Glen | $52,583 |
| 32 | Upper St. Clair | $52,381 |
| 33 | Milford Square | $51,948 |
| 34 | Newtown | $51,821 |
| 35 | Evansburg | $51,818 |
| 36 | Audubon | $51,675 |
| 37 | Conshohocken | $50,941 |
| 38 | Yardley | $50,784 |
| 39 | Caln | $50,780 |
| 40 | Snydertown | $50,769 |
| 41 | Laurys Station | $50,726 |
| 42 | McMurray | $50,304 |
| 43 | New Schaefferstown | $50,294 |
| 44 | Ardmore | $49,278 |
| 45 | Edgewood | $49,215 |
| 46 | Indian Lake | $49,205 |
| 47 | Springmont | $49,141 |
| 48 | Flourtown | $49,137 |
| 49 | Lionville | $48,685 |
| 50 | Fort Washington | $48,607 |
| 51 | King of Prussia | $48,444 |
| 52 | Breinigsville | $48,422 |
| 53 | Bell Acres | $47,917 |
| 53 | Penryn | $47,917 |
| 55 | Smoketown | $47,910 |
| 56 | Riegelsville | $47,857 |
| 57 | Berwyn | $47,639 |
| 58 | Soudersburg | $47,566 |
| 59 | Malvern | $47,348 |
| 60 | Ancient Oaks | $47,336 |
| 61 | Pocono Pines | $47,120 |
| 62 | Aspinwall | $47,027 |
| 63 | Jenkintown | $46,817 |
| 64 | Montgomeryville | $46,630 |
| 65 | Raubsville | $46,613 |
| 66 | New Freedom | $46,569 |
| 67 | Churchville | $46,444 |
| 68 | Woxall | $46,439 |
| 69 | Chalfont | $46,289 |
| 70 | Rutledge | $46,136 |
| 71 | Richboro | $46,063 |
| 72 | Pennsbury Village | $45,673 |
| 73 | Ben Avon | $45,441 |
| 74 | Deer Lake | $45,360 |
| 75 | Churchill | $45,357 |
| 76 | Lake Heritage | $45,227 |
| 77 | Harleysville | $45,103 |
| 78 | Thompsonville | $45,026 |
| 79 | Boiling Springs | $44,921 |
| 80 | Penn Lake Park | $44,792 |
| 81 | Zion | $44,741 |
| 82 | Spinnerstown | $44,601 |
| 83 | Gibsonia | $44,591 |
| 84 | Spring House | $44,573 |
| 85 | New Hope | $44,557 |
| 86 | Pottsgrove | $44,392 |
| 87 | Prospect Park | $44,107 |
| 88 | Plymouth Meeting | $44,102 |
| 89 | Dorneyville | $43,574 |
| 90 | Oak Hills | $43,505 |
| 91 | Alleghenyville | $43,447 |
| 92 | Houserville | $43,341 |
| 93 | Clarks Green | $43,239 |
| 94 | Beurys Lake | $43,125 |
| 95 | East Petersburg | $43,026 |
| 96 | New Tripoli | $43,017 |
| 97 | Manor | $42,941 |
| 98 | Green Tree | $42,937 |
| 99 | Linntown | $42,829 |
| 100 | Sturgeon | $42,807 |
* All values are inflation-adjusted
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