| 1 | Milford Square CDP (northeast) | 8,250 |
| 2 | Ivyland borough (north 2) | 7,992 |
| 3 | Silverdale borough (northeast) | 7,929 |
| 4 | Ivyland borough (north 1) | 7,813 |
| 5 | Woodside CDP (east-southeast 2) | 7,519 |
| 6 | Blooming Glen CDP (north) | 7,499 |
| 7 | Milford Square CDP (west-northwest) | 7,465 |
| 8 | Morrisville borough (south-southeast) | 7,338 |
| 9 | Parkland CDP (north) | 7,174 |
| 10 | Levittown CDP (west-southwest 2) | 7,099 |
| 11 | New Britain borough (north-northwest 1) | 7,091 |
| 12 | Parkland CDP (east-southeast) | 7,036 |
| 13 | Richlandtown borough (southwest) | 6,921 |
| 14 | Ivyland borough (northwest) | 6,825 |
| 15 | Croydon CDP (west-northwest) | 6,774 |
| 16 | Tullytown borough (north) | 6,771 |
| 17 | Levittown CDP (south) | 6,592 |
| 18 | Brittany Farms-The Highlands CDP (west-northwest 1) | 6,568 |
| 19 | Warminster Heights CDP (west-northwest 2) | 6,558 |
| 20 | Levittown CDP (east-southeast) | 6,553 |
| 21 | Brittany Farms-The Highlands CDP (southeast) | 6,535 |
| 22 | Silverdale borough (southwest) | 6,430 |
| 23 | New Britain borough (north-northwest 2) | 6,365 |
| 24 | Cornwells Heights CDP (northwest) | 6,342 |
| 25 | Churchville CDP (northeast) | 6,332 |
| 26 | Parkland CDP (west-northwest) | 6,216 |
| 27 | Richboro CDP (south-southwest) | 6,097 |
| 28 | Trevose CDP (northeast) | 6,011 |
| 29 | Levittown CDP (northeast) | 5,877 |
| 30 | Blooming Glen CDP (west) | 5,810 |
| 31 | Newtown Grant CDP (southeast) | 5,771 |
| 32 | Fairless Hills CDP (northeast) | 5,721 |
| 33 | Cornwells Heights CDP (southwest) | 5,715 |
| 34 | Plumsteadville CDP (south-southeast) | 5,678 |
| 35 | Woodbourne CDP (east-northeast 2) | 5,631 |
| 36 | Hulmeville borough (east) | 5,555 |
| 37 | Plumsteadville CDP (west) | 5,552 |
| 38 | Levittown CDP (southeast) | 5,537 |
| 39 | Woodbourne CDP (east-northeast 1) | 5,526 |
| 40 | Parkland CDP (south-southeast) | 5,523 |
| 41 | Plumsteadville CDP (west-southwest) | 5,514 |
| 42 | Croydon CDP (west-southwest) | 5,364 |
| 43 | Quakertown borough (west-southwest) | 5,280 |
| 44 | Croydon CDP (south-southeast) | 5,249 |
| 45 | Trevose CDP (east-southeast) | 5,246 |
| 46 | Fairless Hills CDP (southwest) | 5,205 |
| 47 | Milford Square CDP (south-southeast) | 5,176 |
| 48 | Richlandtown borough (north) | 5,168 |
| 49 | Richboro CDP (south-southeast) | 5,157 |
| 50 | Brittany Farms-The Highlands CDP (west-northwest 2) | 5,133 |
| 51 | Churchville CDP (west) | 5,089 |
| 52 | Trevose CDP (southwest) | 5,066 |
| 53 | Churchville CDP (east-northeast) | 5,042 |
| 54 | Hulmeville borough (north) | 5,042 |
| 55 | Bristol borough (northwest) | 5,029 |
| 56 | Newtown Grant CDP (southwest) | 4,990 |
| 57 | Perkasie borough (southeast) | 4,966 |
| 58 | Cornwells Heights CDP (north) | 4,957 |
| 59 | Plumsteadville CDP (south) | 4,929 |
| 60 | Sellersville borough | 4,806 |
| 61 | Warminster Heights CDP (east-southeast 2) | 4,737 |
| 62 | Woodside CDP (northwest 2) | 4,694 |
| 63 | Ivyland borough (east) | 4,580 |
| 64 | Woodbourne CDP (west-southwest) | 4,578 |
| 65 | Newtown Grant CDP (north-northeast) | 4,570 |
| 66 | Levittown CDP (northwest) | 4,529 |
| 67 | Croydon CDP (south) | 4,522 |
| 68 | Doylestown borough (southeast) | 4,501 |
| 69 | Warminster Heights CDP (southeast) | 4,493 |
| 70 | Ivyland borough (west-southwest) | 4,460 |
| 71 | Newtown borough (southeast) | 4,448 |
| 72 | Hulmeville borough (northwest) | 4,443 |
| 73 | Chalfont borough (east) | 4,301 |
| 74 | New Hope borough (west-northwest) | 4,282 |
| 75 | Newtown Grant CDP (north-northwest) | 4,259 |
| 76 | Perkasie borough (northwest) | 4,210 |
| 77 | Chalfont borough (west) | 4,192 |
| 78 | Croydon CDP (east-northeast) | 4,188 |
| 79 | Woodside CDP (south-southeast) | 4,119 |
| 80 | Ivyland borough (south-southwest) | 4,117 |
| 81 | Woodside CDP (east-southeast 1) | 4,088 |
| 82 | Churchville CDP (south-southwest 1) | 4,078 |
| 83 | New Britain borough (southeast) | 4,017 |
| 84 | Langhorne Manor borough (northeast) | 3,991 |
| 85 | Morrisville borough (west-northwest) | 3,988 |
| 86 | Fairless Hills CDP (south-southwest) | 3,962 |
| 87 | Bristol borough (south) | 3,916 |
| 88 | Fairless Hills CDP (east) | 3,858 |
| 89 | Blooming Glen CDP (north-northeast) | 3,817 |
| 90 | Spinnerstown CDP | 3,781 |
| 91 | Hulmeville borough (southwest) | 3,766 |
| 92 | Levittown CDP (west-southwest 1) | 3,763 |
| 93 | Fairless Hills CDP (north-northeast) | 3,738 |
| 94 | New Britain borough (south-southeast) | 3,720 |
| 95 | Cornwells Heights CDP (east) | 3,685 |
| 96 | Croydon CDP (east) | 3,620 |
| 97 | Village Shires CDP (east-southeast) | 3,538 |
| 98 | Ivyland borough (south-southeast 1) | 3,524 |
| 99 | Village Shires CDP (northwest) | 3,452 |
| 100 | Riegelsville borough (south) | 3,373 |
| 101 | Churchville CDP (south-southwest 2) | 3,352 |
| 102 | Warminster Heights CDP (west-northwest 1) | 3,322 |
| 103 | Blooming Glen CDP (south-southwest) | 3,303 |
| 104 | Richboro CDP (north-northwest) | 3,279 |
| 105 | Trevose CDP (northwest) | 3,227 |
| 106 | Woodside CDP (northwest 1) | 3,223 |
| 107 | Ivyland borough (south-southeast 2) | 3,192 |
| 108 | Langhorne Manor borough (southwest) | 3,150 |
| 109 | Croydon CDP (north) | 3,054 |
| 110 | Doylestown borough (west) | 3,035 |
| 111 | Plumsteadville CDP (north) | 2,997 |
| 112 | Cornwells Heights CDP (south) | 2,993 |
| 113 | Blooming Glen CDP (south-southeast) | 2,965 |
| 114 | Brittany Farms-The Highlands CDP (east-southeast) | 2,965 |
| 115 | Doylestown borough (northwest) | 2,947 |
| 116 | Village Shires CDP (west-southwest) | 2,925 |
| 117 | Cornwells Heights CDP (south-southeast) | 2,912 |
| 118 | Morrisville borough (east-southeast) | 2,884 |
| 119 | Plumsteadville CDP (northeast) | 2,823 |
| 120 | New Britain borough (west-northwest) | 2,822 |
| 121 | Churchville CDP (north-northwest) | 2,745 |
| 122 | Warminster Heights CDP (east-southeast 1) | 2,680 |
| 123 | New Hope borough (northeast) | 2,623 |
| 124 | Yardley borough | 2,596 |
| 125 | Penndel borough | 2,507 |
| 126 | Plumsteadville CDP (east-southeast) | 2,418 |
| 127 | Newtown Grant CDP (south) | 2,416 |
| 128 | Andalusia CDP | 2,376 |
| 129 | Tullytown borough (south) | 2,367 |
| 130 | Doylestown borough (north-northeast) | 2,340 |
| 131 | Bristol borough (east-northeast) | 2,338 |
| 132 | Levittown CDP (north-northeast 2) | 2,295 |
| 133 | Newtown borough (northwest) | 2,234 |
| 134 | Richlandtown borough (south-southwest) | 2,180 |
| 135 | Richboro CDP (east-northeast) | 2,179 |
| 136 | Dublin borough | 2,113 |
| 137 | Richlandtown borough (east-northeast) | 2,102 |
| 138 | Telford borough | 2,098 |
| 139 | Tullytown borough (south-southwest) | 2,092 |
| 140 | New Britain borough (east-southeast) | 1,977 |
| 141 | Riegelsville borough (west-northwest) | 1,891 |
| 142 | Tullytown borough (west) | 1,844 |
| 143 | Quakertown borough (east-northeast) | 1,838 |
| 144 | New Hope borough (south-southeast) | 1,570 |
| 145 | Riegelsville borough (east-northeast) | 1,254 |
| 146 | Levittown CDP (north-northeast 1) | 1,253 |