area (sq. miles) | county count | state count | span (miles) | span center | span end 1 | span end 2 |
1 | 2786 | 4 | 1 | 2 | 1 | 1 | 112 | Pennington-SD (44.12, 102.99) | Pennington-SD (44.51, 102.00) | Pennington-SD (43.85, 104.06) |
2 | 1913 | 4 | 1 | 2 | 1 | 2 | 85 | Cook-MN (47.79, 90.31) | Cook-MN (47.39, 91.03) | Cook-MN (47.98, 89.43) |
3 | 1744 | 1 | 2 | 1 | 2 | 3 | 84 | Somerset-PA (39.73, 79.08) | Somerset-PA (40.24, 78.66) | Garrett-MD (39.21, 79.49) |
4 | 1445 | 4 | 1 | 2 | 1 | 8 | 57 | Becker-MN (46.94, 95.68) | Becker-MN (46.72, 95.16) | Becker-MN (47.15, 96.19) |
5 | 1439 | 4 | 1 | 2 | 1 | 6 | 59 | Grand Forks-ND (47.93, 97.39) | Grand Forks-ND (47.67, 96.89) | Grand Forks-ND (48.19, 97.90) |
6 | 1405 | 1 | 2 | 2 | 1 | 5 | 62 | Codington-SD (45.07, 96.98) | Codington-SD (44.80, 97.49) | Grant-SD (45.33, 96.47) |
7 | 1327 | 1 | 2 | 2 | 1 | 4 | 78 | Wilkin-MN (46.20, 96.27) | Wilkin-MN (46.63, 96.78) | Grant-MN (45.76, 95.76) |
8 | 1278 | 4 | 1 | 2 | 1 | 11 | 52 | Price-WI (45.68, 90.36) | Price-WI (45.38, 90.68) | Price-WI (45.98, 90.04) |
9 | 1218 | 4 | 1 | 2 | 1 | 7 | 59 | Slope-ND (46.45, 103.49) | Slope-ND (46.63, 102.93) | Slope-ND (46.28, 104.05) |
10 | 947 | 4 | 1 | 2 | 1 | 9 | 54 | Berkshire-MA (42.40, 73.26) | Berkshire-MA (42.05, 73.50) | Berkshire-MA (42.74, 73.02) |
11 | 731 | 4 | 1 | 2 | 1 | 10 | 52 | Logan-AR (35.19, 93.71) | Logan-AR (35.06, 94.14) | Logan-AR (35.32, 93.28) |
12 | 715 | 4 | 1 | 2 | 1 | 15 | 40 | Wright-MN (45.15, 93.91) | Wright-MN (45.30, 93.56) | Wright-MN (44.98, 94.26) |
13 | 698 | 4 | 1 | 2 | 1 | 17 | 38 | Pendleton-WV (38.68, 79.33) | Pendleton-WV (38.96, 79.35) | Pendleton-WV (38.41, 79.31) |
14 | 642 | 4 | 1 | 2 | 1 | 14 | 41 | Eddy-ND (47.72, 98.90) | Eddy-ND (47.59, 98.50) | Eddy-ND (47.85, 99.30) |
15 | 619 | 4 | 1 | 2 | 1 | 13 | 43 | Jo Daviess-IL (42.35, 90.29) | Jo Daviess-IL (42.49, 90.66) | Jo Daviess-IL (42.20, 89.92) |
16 | 552 | 4 | 1 | 2 | 1 | 12 | 46 | Reynolds-MO (37.51, 90.85) | Iron-MO (37.74, 91.15) | Iron-MO (37.27, 90.55) |
17 | 537 | 4 | 1 | 2 | 1 | 19 | 34 | Sussex-NJ (41.14, 74.68) | Sussex-NJ (41.09, 74.99) | Sussex-NJ (41.20, 74.37) |
18 | 494 | 4 | 1 | 2 | 1 | 16 | 40 | New Castle-DE (39.56, 75.61) | New Castle-DE (39.83, 75.47) | New Castle-DE (39.30, 75.76) |
19 | 467 | 4 | 1 | 2 | 1 | 20 | 31 | Logan-OH (40.38, 83.77) | Logan-OH (40.23, 83.55) | Logan-OH (40.54, 83.99) |
20 | 435 | 4 | 1 | 2 | 1 | 21 | 30 | Providence-RI (41.87, 71.58) | Providence-RI (42.01, 71.80) | Providence-RI (41.78, 71.32) |
21 | 432 | 4 | 1 | 2 | 1 | 18 | 37 | Red Lake-MN (47.91, 96.10) | Red Lake-MN (47.96, 96.48) | Red Lake-MN (47.85, 95.71) |
22 | 405 | 4 | 1 | 2 | 1 | 23 | 28 | Wayne-IN (39.87, 85.01) | Wayne-IN (40.01, 84.81) | Wayne-IN (39.72, 85.19) |
23 | 399 | 4 | 1 | 2 | 1 | 22 | 29 | Osceola-IA (43.38, 95.62) | Osceola-IA (43.26, 95.39) | Osceola-IA (43.50, 95.86) |
24 | 184 | 4 | 1 | 2 | 1 | 24 | 21 | Stephens-GA (34.54, 83.29) | Stephens-GA (34.54, 83.10) | Stephens-GA (34.48, 83.46) |
25 | 68 | 4 | 1 | 2 | 1 | 25 | 14 | City of Washington-DC (38.89, 77.04) | City of Washington-DC (38.79, 77.04) | City of Washington-DC (39.00, 77.04) |
floating glob radius (miles) | center county and point | county 1 and point | county 2 and point | county 3 and point |
1 | 16 | Pennington-SD (43.92, 102.33) | Meade-SD (44.14, 102.39) | Shannon-SD (43.69, 102.34) | Jackson-SD (43.92, 102.02) |
2 | 16 | Cook-MN (47.86, 90.67) | Great Lakes (47.66, 90.49) | Canada (48.10, 90.70) | Lake-MN (47.86, 91.02) |
3 | 15 | Somerset-PA (39.91, 79.05) | Allegany-MD (39.72, 78.91) | Westmoreland-PA (40.11, 79.18) | Westmoreland-PA (40.05, 79.28) |
4 | 15 | Becker-MN (46.93, 95.55) | Otter Tail-MN (46.72, 95.54) | Clearwater-MN (47.15, 95.55) | Otter Tail-MN (46.72, 95.55) |
5 | 18 | Grand Forks-ND (47.93, 97.47) | Walsh-ND (48.19, 97.47) | Steele-ND (47.67, 97.47) | Traill-ND (47.67, 97.47) |
6 | 12 | Codington-SD (44.98, 97.14) | Day-SD (45.15, 97.23) | Hamlin-SD (44.80, 97.14) | Deuel-SD (44.98, 96.88) |
7 | 12 | Grant-MN (45.93, 96.01) | Stevens-MN (45.76, 96.01) | Douglas-MN (45.93, 95.77) | Traverse-MN (45.93, 96.25) |
8 | 15 | Price-WI (45.60, 90.36) | Rusk-WI (45.60, 90.68) | Taylor-WI (45.38, 90.35) | Oneida-WI (45.60, 90.04) |
9 | 12 | Slope-ND (46.45, 103.52) | Billings-ND (46.63, 103.52) | Bowman-ND (46.28, 103.52) | Bowman-ND (46.28, 103.52) |
10 | 11 | Berkshire-MA (42.24, 73.24) | Hampshire-MA (42.33, 73.06) | Columbia-NY (42.28, 73.44) | Hampden-MA (42.15, 73.07) |
11 | 8 | Logan-AR (35.27, 93.64) | Johnson-AR (35.38, 93.62) | Johnson-AR (35.38, 93.70) | Yell-AR (35.15, 93.65) |
12 | 13 | Wright-MN (45.16, 93.99) | Hennepin-MN (45.08, 93.76) | Stearns-MN (45.30, 94.16) | Carver-MN (44.98, 94.00) |
13 | 12 | Pendleton-WV (38.65, 79.36) | Highland-VA (38.55, 79.54) | Rockingham-VA (38.60, 79.16) | Randolph-WV (38.75, 79.54) |
14 | 9 | Eddy-ND (47.72, 98.72) | Benson-ND (47.85, 98.72) | Foster-ND (47.59, 98.72) | Nelson-ND (47.72, 98.53) |
15 | 11 | Jo Daviess-IL (42.35, 90.21) | Carroll-IL (42.20, 90.20) | Lafayette-WI (42.51, 90.21) | Jackson-IA (42.32, 90.42) |
16 | 6 | Iron-MO (37.43, 90.66) | Reynolds-MO (37.37, 90.75) | Madison-MO (37.42, 90.55) | Reynolds-MO (37.43, 90.77) |
17 | 10 | Sussex-NJ (41.17, 74.67) | Pike-PA (41.22, 74.86) | Morris-NJ (41.07, 74.52) | Orange-NY (41.30, 74.57) |
18 | 7 | New Castle-DE (39.71, 75.64) | Salem-NJ (39.65, 75.54) | Salem-NJ (39.69, 75.51) | Chester-PA (39.77, 75.74) |
19 | 9 | Logan-OH (40.38, 83.71) | Hardin-OH (40.52, 83.70) | Champaign-OH (40.26, 83.78) | Union-OH (40.37, 83.54) |
20 | 10 | Providence-RI (41.87, 71.57) | Worcester-MA (42.01, 71.58) | Kent-RI (41.73, 71.56) | Bristol-MA (41.89, 71.38) |
21 | 7 | Red Lake-MN (47.86, 95.99) | Pennington-MN (47.96, 95.99) | Polk-MN (47.76, 95.99) | Polk-MN (47.85, 95.84) |
22 | 10 | Wayne-IN (39.87, 84.99) | Union-IN (39.73, 84.99) | Preble-OH (39.87, 84.81) | Randolph-IN (40.00, 84.99) |
23 | 8 | Osceola-IA (43.38, 95.55) | O'Brien-IA (43.26, 95.56) | Dickinson-IA (43.38, 95.39) | Nobles-MN (43.50, 95.55) |
24 | 6 | Stephens-GA (34.56, 83.31) | Franklin-GA (34.47, 83.31) | Oconee-SC (34.62, 83.24) | Habersham-GA (34.59, 83.41) |
25 | 3 | City of Washington-DC (38.89, 76.99) | Prince George's-MD (38.92, 76.95) | Arlington-VA (38.87, 77.04) | Prince George's-MD (38.86, 76.95) |