area (sq. miles) | county count | state count | span (miles) | span center | span end 1 | span end 2 | FGR (miles) | center county and point | county 1 and point | county 2 and point | county 3 and point |
| 1 | 47210 | 1 | 62 | 1 | 4 | 1 | 493 | Pepin-WI (44.62, 92.01) | Menominee-MI (45.44, 87.10) | Lyon-IA (43.27, 96.59) | 37 | Burnett-WI (45.65, 92.80) | Aitkin-MN (46.16, 93.05) | Ramsey-MN (45.12, 92.98) | Washburn-WI (45.65, 92.03) |
| 2 | 18671 | 12 | 1 | 3 | 1 | 3 | 214 | Coconino-AZ (35.63, 111.64) | Coconino-AZ (34.26, 110.76) | Coconino-AZ (37.00, 112.54) | 58 | Coconino-AZ (35.91, 111.78) | Yavapai-AZ (35.26, 112.44) | Navajo-AZ (35.91, 110.75) | Mohave-AZ (36.36, 112.66) |
| 3 | 15068 | 5 | 2 | 3 | 1 | 2 | 224 | Inyo-CA (36.16, 117.60) | Tulare-CA (36.49, 119.57) | Inyo-CA (35.81, 115.65) | 45 | Inyo-CA (36.45, 117.66) | Kern-CA (35.80, 117.66) | Nye-NV (36.92, 117.10) | Fresno-CA (36.75, 118.37) |
| 4 | 7398 | 2 | 5 | 3 | 1 | 4 | 181 | Luce-MI (46.29, 85.27) | Alger-MI (46.56, 87.12) | Chippewa-MI (46.00, 83.43) | 28 | Schoolcraft-MI (46.32, 85.92) | Great Lakes (45.92, 85.80) | Great Lakes (46.04, 85.49) | Great Lakes (46.71, 86.09) |
| 5 | 4383 | 5 | 2 | 3 | 1 | 5 | 132 | no county here (47.56, 90.72) | Lake-MN (46.94, 91.79) | Cook-MN (47.98, 89.43) | 24 | Lake-MN (47.71, 91.28) | Canada (48.05, 91.43) | Saint Louis-MN (47.70, 91.80) | Great Lakes (47.47, 90.91) |
| 6 | 3814 | 12 | 1 | 3 | 1 | 7 | 106 | Culberson-TX (31.33, 104.47) | Culberson-TX (30.66, 104.92) | Culberson-TX (32.00, 104.02) | 25 | Culberson-TX (31.63, 104.49) | Eddy-NM (32.00, 104.48) | Hudspeth-TX (31.63, 104.91) | Reeves-TX (31.61, 104.06) |
| 7 | 2786 | 12 | 1 | 3 | 1 | 6 | 112 | Pennington-SD (44.12, 102.99) | Pennington-SD (44.51, 102.00) | Pennington-SD (43.85, 104.06) | 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) |
| 8 | 2204 | 12 | 1 | 3 | 1 | 11 | 73 | Taos-NM (36.55, 105.61) | Taos-NM (36.02, 105.51) | Taos-NM (37.00, 106.01) | 17 | Taos-NM (36.75, 105.67) | Colfax-NM (36.68, 105.37) | Costilla-CO (37.00, 105.67) | Rio Arriba-NM (36.72, 105.98) |
| 9 | 2179 | 3 | 4 | 3 | 1 | 9 | 81 | Adams-CO (39.78, 104.42) | Arapahoe-CO (39.57, 103.71) | Broomfield-CO (39.91, 105.17) | 15 | Adams-CO (39.78, 104.43) | Weld-CO (40.00, 104.43) | Elbert-CO (39.56, 104.43) | Elbert-CO (39.56, 104.42) |
| 10 | 2143 | 12 | 1 | 3 | 1 | 8 | 84 | Utah-UT (40.14, 111.53) | Utah-UT (40.46, 112.21) | Utah-UT (39.81, 110.86) | 17 | Utah-UT (40.20, 111.80) | Juab-UT (39.95, 111.82) | Wasatch-UT (40.36, 111.55) | Salt Lake-UT (40.42, 111.96) |
| 11 | 1645 | 5 | 2 | 3 | 1 | 12 | 70 | Sauk-WI (43.46, 89.66) | Sauk-WI (43.64, 90.31) | Columbia-WI (43.28, 89.01) | 14 | Sauk-WI (43.44, 89.91) | Dane-WI (43.29, 89.72) | Juneau-WI (43.64, 89.91) | Richland-WI (43.44, 90.19) |
| 12 | 1527 | 12 | 1 | 3 | 1 | 14 | 59 | Ontonagon-MI (46.75, 89.31) | Ontonagon-MI (46.33, 89.37) | Ontonagon-MI (47.14, 88.93) | 14 | Ontonagon-MI (46.71, 89.29) | Gogebic-MI (46.51, 89.37) | Houghton-MI (46.68, 88.99) | Great Lakes (46.90, 89.41) |
| 13 | 1400 | 4 | 3 | 3 | 1 | 10 | 79 | Summit-CO (39.44, 106.03) | Lake-CO (39.06, 106.58) | Clear Creek-CO (39.75, 105.40) | 9 | Clear Creek-CO (39.69, 105.67) | Gilpin-CO (39.77, 105.54) | Grand-CO (39.80, 105.74) | Park-CO (39.57, 105.66) |
| 14 | 1183 | 5 | 2 | 3 | 1 | 13 | 68 | Jo Daviess-IL (42.35, 90.03) | Stephenson-IL (42.20, 89.40) | Jo Daviess-IL (42.49, 90.66) | 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) |
| 15 | 1015 | 12 | 1 | 3 | 1 | 15 | 56 | El Paso-TX (31.69, 106.31) | El Paso-TX (32.00, 106.62) | El Paso-TX (31.39, 106.00) | 12 | El Paso-TX (31.82, 106.20) | Otero-NM (32.00, 106.20) | Mexico (31.73, 106.38) | Hudspeth-TX (31.83, 106.00) |
| 16 | 953 | 12 | 1 | 3 | 1 | 20 | 44 | Kimball-NE (41.20, 103.72) | Kimball-NE (41.00, 104.05) | Kimball-NE (41.39, 103.38) | 14 | Kimball-NE (41.20, 103.63) | Banner-NE (41.39, 103.64) | Weld-CO (41.00, 103.64) | Cheyenne-NE (41.20, 103.38) |
| 17 | 915 | 5 | 2 | 3 | 1 | 17 | 47 | Waukesha-WI (43.02, 88.14) | Milwaukee-WI (42.84, 87.75) | Waukesha-WI (43.20, 88.54) | 12 | Waukesha-WI (43.02, 88.30) | Racine-WI (42.84, 88.30) | Washington-WI (43.19, 88.30) | Jefferson-WI (43.02, 88.54) |
| 18 | 878 | 5 | 2 | 2 | 2 | 19 | 45 | Lake-IL (42.39, 87.98) | Lake-IL (42.15, 87.68) | Kenosha-WI (42.61, 88.31) | 12 | Lake-IL (42.47, 87.97) | McHenry-IL (42.46, 88.20) | Great Lakes (42.43, 87.74) | Great Lakes (42.51, 87.74) |
| 19 | 858 | 5 | 2 | 3 | 1 | 18 | 46 | Randolph-IN (40.02, 85.01) | Randolph-IN (40.31, 84.80) | Wayne-IN (39.72, 85.19) | 11 | Randolph-IN (40.15, 85.01) | Jay-IN (40.31, 85.01) | Delaware-IN (40.15, 85.22) | Darke-OH (40.15, 84.81) |
| 20 | 731 | 12 | 1 | 3 | 1 | 16 | 52 | Logan-AR (35.19, 93.71) | Logan-AR (35.06, 94.14) | Logan-AR (35.32, 93.28) | 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) |
| 21 | 725 | 12 | 1 | 3 | 1 | 21 | 39 | Rock-WI (42.67, 89.07) | Rock-WI (42.85, 89.37) | Rock-WI (42.49, 88.78) | 12 | Rock-WI (42.67, 89.01) | Dane-WI (42.85, 89.02) | Winnebago-IL (42.50, 89.02) | Walworth-WI (42.68, 88.78) |
| 22 | 467 | 12 | 1 | 3 | 1 | 22 | 31 | Logan-OH (40.38, 83.77) | Logan-OH (40.23, 83.55) | Logan-OH (40.54, 83.99) | 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) |
| 23 | 435 | 12 | 1 | 3 | 1 | 23 | 30 | Providence-RI (41.87, 71.58) | Providence-RI (42.01, 71.80) | Providence-RI (41.78, 71.32) | 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) |
| 24 | 68 | 12 | 1 | 3 | 1 | 24 | 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) | 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) |