area (sq. miles) | county count | state count | span (miles) | span center | span end 1 | span end 2 |
1 | 45444 | 1 | 56 | 1 | 7 | 1 | 434 | Grafton-NH (43.78, 71.76) | Somerset-ME (46.57, 69.72) | Fairfield-CT (40.95, 73.61) |
2 | 2396 | 3 | 3 | 2 | 3 | 2 | 94 | Somerset-PA (39.75, 79.26) | Somerset-PA (40.24, 78.66) | Preston-WV (39.25, 79.85) |
3 | 2385 | 6 | 2 | 5 | 1 | 3 | 81 | Portage-WI (44.68, 89.78) | Wood-WI (44.25, 90.32) | Marathon-WI (45.12, 89.22) |
4 | 2130 | 12 | 1 | 5 | 1 | 7 | 67 | El Paso-CO (38.83, 104.54) | El Paso-CO (38.52, 104.05) | El Paso-CO (39.13, 105.03) |
5 | 1765 | 3 | 3 | 5 | 1 | 5 | 78 | Hillsborough-FL (28.14, 82.50) | Pinellas-FL (27.61, 82.74) | Hernando-FL (28.67, 82.26) |
6 | 1515 | 2 | 5 | 3 | 2 | 9 | 65 | Prince George's-MD (39.01, 76.93) | Montgomery-MD (39.17, 77.51) | Anne Arundel-MD (38.71, 76.45) |
7 | 1505 | 12 | 1 | 5 | 1 | 6 | 68 | Osceola-FL (28.00, 81.26) | Osceola-FL (27.64, 80.87) | Osceola-FL (28.35, 81.66) |
8 | 1400 | 3 | 3 | 5 | 1 | 4 | 79 | Summit-CO (39.44, 106.03) | Lake-CO (39.06, 106.58) | Clear Creek-CO (39.75, 105.40) |
9 | 1212 | 6 | 2 | 5 | 1 | 13 | 55 | Franklin-PA (39.93, 77.92) | Franklin-PA (40.24, 77.60) | Fulton-PA (39.72, 78.38) |
10 | 1156 | 12 | 1 | 5 | 1 | 8 | 67 | Lake-FL (28.81, 81.80) | Lake-FL (29.28, 81.64) | Lake-FL (28.35, 81.96) |
11 | 1050 | 6 | 2 | 5 | 1 | 10 | 62 | Iron-MO (37.53, 90.64) | Iron-MO (37.74, 91.15) | Madison-MO (37.31, 90.15) |
12 | 915 | 6 | 2 | 5 | 1 | 14 | 47 | Waukesha-WI (43.02, 88.14) | Milwaukee-WI (42.84, 87.75) | Waukesha-WI (43.20, 88.54) |
13 | 898 | 6 | 2 | 5 | 1 | 11 | 61 | Grayson-VA (36.75, 81.34) | Grayson-VA (36.56, 80.84) | Smyth-VA (36.93, 81.84) |
14 | 808 | 12 | 1 | 5 | 1 | 16 | 42 | Wilson-TX (29.16, 98.07) | Wilson-TX (29.22, 97.73) | Wilson-TX (29.11, 98.41) |
15 | 740 | 12 | 1 | 5 | 1 | 17 | 40 | Boulder-CO (40.10, 105.38) | Boulder-CO (39.94, 105.69) | Boulder-CO (40.26, 105.06) |
16 | 698 | 12 | 1 | 5 | 1 | 18 | 38 | Pendleton-WV (38.68, 79.33) | Pendleton-WV (38.96, 79.35) | Pendleton-WV (38.41, 79.31) |
17 | 685 | 6 | 2 | 3 | 2 | 12 | 57 | New Castle-DE (39.68, 75.56) | Delaware-PA (40.07, 75.36) | New Castle-DE (39.30, 75.76) |
18 | 658 | 12 | 1 | 5 | 1 | 15 | 43 | Greene-NY (42.33, 74.16) | Greene-NY (42.20, 74.54) | Greene-NY (42.46, 73.78) |
19 | 618 | 12 | 1 | 5 | 1 | 19 | 37 | Logan-IL (40.12, 89.37) | Logan-IL (40.32, 89.60) | Logan-IL (39.92, 89.14) |
20 | 467 | 12 | 1 | 5 | 1 | 20 | 31 | Logan-OH (40.38, 83.77) | Logan-OH (40.23, 83.55) | Logan-OH (40.54, 83.99) |
21 | 266 | 12 | 1 | 5 | 1 | 21 | 24 | Rappahannock-VA (38.69, 78.15) | Rappahannock-VA (38.52, 78.18) | Rappahannock-VA (38.86, 78.13) |
22 | 66 | 12 | 1 | 5 | 1 | 22 | 17 | Saint Louis City-MO (38.65, 90.21) | Saint Louis City-MO (38.53, 90.26) | Saint Louis City-MO (38.77, 90.17) |
23 | 9 | 12 | 1 | 5 | 1 | 23 | 4 | Staunton-VA (38.16, 79.07) | Staunton-VA (38.15, 79.11) | Staunton-VA (38.17, 79.04) |