area (sq. miles) | county count | state count | span (miles) | span center | span end 1 | span end 2 |
1 | 55085 | 1 | 61 | 1 | 8 | 1 | 491 | Grafton-NH (43.78, 71.93) | Piscataquis-ME (46.57, 68.82) | Sussex-NJ (40.91, 74.77) |
2 | 12274 | 6 | 2 | 4 | 1 | 3 | 168 | Carbon-WY (41.70, 106.60) | Carbon-WY (41.00, 107.92) | Albany-WY (42.43, 105.28) |
3 | 6736 | 2 | 11 | 2 | 4 | 2 | 228 | Pendleton-WV (38.65, 79.21) | Somerset-PA (40.28, 78.93) | Bedford-VA (37.01, 79.48) |
4 | 6193 | 11 | 1 | 4 | 1 | 4 | 118 | Brewster-TX (29.82, 103.30) | Brewster-TX (28.97, 103.15) | Brewster-TX (30.67, 103.44) |
5 | 3814 | 11 | 1 | 4 | 1 | 6 | 106 | Culberson-TX (31.33, 104.47) | Culberson-TX (30.66, 104.92) | Culberson-TX (32.00, 104.02) |
6 | 3315 | 6 | 2 | 4 | 1 | 5 | 117 | Hancock-ME (44.54, 68.70) | Hancock-ME (45.26, 68.06) | Knox-ME (43.82, 69.33) |
7 | 2130 | 11 | 1 | 4 | 1 | 8 | 67 | El Paso-CO (38.83, 104.54) | El Paso-CO (38.52, 104.05) | El Paso-CO (39.13, 105.03) |
8 | 1544 | 5 | 3 | 4 | 1 | 11 | 60 | Wilkes-NC (36.20, 81.39) | Wilkes-NC (36.06, 80.88) | Watauga-NC (36.29, 81.92) |
9 | 1332 | 4 | 4 | 3 | 2 | 7 | 69 | Mitchell-NC (36.01, 82.05) | Carter-TN (36.51, 81.99) | McDowell-NC (35.52, 82.15) |
10 | 1276 | 3 | 5 | 4 | 1 | 10 | 61 | Rappahannock-VA (38.62, 78.31) | Warren-VA (39.02, 78.06) | Greene-VA (38.28, 78.66) |
11 | 1223 | 11 | 1 | 4 | 1 | 12 | 55 | Broward-FL (26.16, 80.48) | Broward-FL (26.32, 80.07) | Broward-FL (25.98, 80.87) |
12 | 1212 | 6 | 2 | 4 | 1 | 13 | 55 | Franklin-PA (39.93, 77.92) | Franklin-PA (40.24, 77.60) | Fulton-PA (39.72, 78.38) |
13 | 953 | 11 | 1 | 4 | 1 | 16 | 44 | Kimball-NE (41.20, 103.72) | Kimball-NE (41.00, 104.05) | Kimball-NE (41.39, 103.38) |
14 | 898 | 6 | 2 | 4 | 1 | 9 | 61 | Grayson-VA (36.75, 81.34) | Grayson-VA (36.56, 80.84) | Smyth-VA (36.93, 81.84) |
15 | 868 | 6 | 2 | 4 | 1 | 15 | 47 | Patrick-VA (36.81, 80.32) | Floyd-VA (37.12, 80.13) | Patrick-VA (36.56, 80.61) |
16 | 512 | 11 | 1 | 4 | 1 | 19 | 35 | Pickens-SC (34.85, 82.72) | Pickens-SC (34.62, 82.85) | Pickens-SC (35.07, 82.57) |
17 | 495 | 11 | 1 | 4 | 1 | 18 | 37 | Jackson-NC (35.27, 83.16) | Jackson-NC (35.52, 83.24) | Jackson-NC (35.00, 83.11) |
18 | 494 | 11 | 1 | 4 | 1 | 17 | 40 | New Castle-DE (39.56, 75.61) | New Castle-DE (39.83, 75.47) | New Castle-DE (39.30, 75.76) |
19 | 375 | 11 | 1 | 4 | 1 | 23 | 28 | Henderson-NC (35.35, 82.49) | Henderson-NC (35.47, 82.27) | Henderson-NC (35.15, 82.58) |
20 | 363 | 11 | 1 | 4 | 1 | 22 | 31 | Gaston-NC (35.32, 81.20) | Gaston-NC (35.42, 81.46) | Gaston-NC (35.15, 81.01) |
21 | 362 | 11 | 1 | 4 | 1 | 20 | 32 | Giles-VA (37.32, 80.73) | Giles-VA (37.28, 81.01) | Giles-VA (37.32, 80.43) |
22 | 332 | 11 | 1 | 4 | 1 | 21 | 32 | Snyder-PA (40.79, 77.08) | Snyder-PA (40.88, 76.80) | Snyder-PA (40.70, 77.35) |
23 | 322 | 11 | 1 | 4 | 1 | 24 | 26 | Berkeley-WV (39.46, 77.99) | Berkeley-WV (39.61, 77.84) | Berkeley-WV (39.26, 78.03) |
24 | 206 | 11 | 1 | 4 | 1 | 14 | 50 | no county here (37.74, 122.72) | San Francisco-CA (37.77, 123.17) | San Francisco-CA (37.71, 122.27) |
25 | 68 | 11 | 1 | 4 | 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) |
26 | 43 | 11 | 1 | 4 | 1 | 26 | 9 | Roanoke city-VA (37.28, 79.96) | Roanoke city-VA (37.30, 79.88) | Roanoke city-VA (37.25, 80.04) |
27 | 11 | 11 | 1 | 4 | 1 | 27 | 5 | Charlottesville-VA (38.04, 78.49) | Charlottesville-VA (38.01, 78.52) | Charlottesville-VA (38.06, 78.45) |
floating glob radius (miles) | center county and point | county 1 and point | county 2 and point | county 3 and point |
1 | 51 | Grafton-NH (44.27, 71.78) | Sullivan-NH (43.55, 72.07) | York-ME (43.79, 70.99) | Canada (45.01, 71.82) |
2 | 50 | Carbon-WY (41.72, 106.24) | Platte-WY (41.72, 105.28) | Natrona-WY (42.43, 106.24) | Jackson-CO (41.00, 106.25) |
3 | 15 | Botetourt-VA (37.54, 79.69) | Alleghany-VA (37.76, 79.67) | Craig-VA (37.54, 79.97) | Bedford city-VA (37.36, 79.54) |
4 | 34 | Brewster-TX (29.88, 103.23) | Presidio-TX (29.88, 103.80) | Mexico (29.64, 102.74) | Pecos-TX (30.27, 102.87) |
5 | 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) |
6 | 19 | Hancock-ME (44.49, 68.40) | Atlantic Ocean (44.39, 68.04) | Penobscot-ME (44.76, 68.48) | Waldo-ME (44.49, 68.79) |
7 | 21 | El Paso-CO (38.82, 104.55) | Elbert-CO (39.13, 104.55) | Teller-CO (38.80, 104.94) | Pueblo-CO (38.52, 104.55) |
8 | 12 | Wilkes-NC (36.22, 81.13) | Alexander-NC (36.04, 81.12) | Alleghany-NC (36.37, 81.03) | Alleghany-NC (36.37, 81.24) |
9 | 11 | Yancey-NC (35.96, 82.26) | Madison-NC (35.87, 82.42) | Avery-NC (35.99, 82.06) | Unicoi-TN (36.11, 82.34) |
10 | 11 | Rappahannock-VA (38.70, 78.25) | Culpeper-VA (38.54, 78.22) | Culpeper-VA (38.59, 78.09) | Shenandoah-VA (38.81, 78.41) |
11 | 13 | Broward-FL (26.15, 80.37) | Miami-Dade-FL (25.97, 80.30) | Palm Beach-FL (26.33, 80.37) | Miami-Dade-FL (25.96, 80.37) |
12 | 13 | Franklin-PA (39.91, 77.72) | Washington-MD (39.72, 77.72) | Adams-PA (39.92, 77.47) | Huntingdon-PA (40.06, 77.86) |
13 | 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) |
14 | 11 | Smyth-VA (36.75, 81.47) | Washington-VA (36.64, 81.61) | Wythe-VA (36.81, 81.28) | Washington-VA (36.69, 81.65) |
15 | 10 | Patrick-VA (36.69, 80.27) | Henry-VA (36.72, 80.09) | Carroll-VA (36.70, 80.45) | Stokes-NC (36.54, 80.27) |
16 | 11 | Pickens-SC (34.89, 82.71) | Greenville-SC (35.01, 82.59) | Oconee-SC (34.90, 82.90) | Anderson-SC (34.76, 82.62) |
17 | 8 | Jackson-NC (35.35, 83.19) | Macon-NC (35.31, 83.32) | Macon-NC (35.24, 83.22) | Haywood-NC (35.46, 83.14) |
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 | 8 | Henderson-NC (35.32, 82.48) | Buncombe-NC (35.42, 82.53) | Transylvania-NC (35.29, 82.61) | Polk-NC (35.29, 82.35) |
20 | 9 | Gaston-NC (35.28, 81.17) | Mecklenburg-NC (35.27, 81.01) | Lincoln-NC (35.41, 81.16) | York-SC (35.16, 81.18) |
21 | 6 | Giles-VA (37.35, 80.56) | Craig-VA (37.38, 80.46) | Monroe-WV (37.43, 80.62) | Montgomery-VA (37.27, 80.52) |
22 | 7 | Snyder-PA (40.77, 76.98) | Juniata-PA (40.68, 77.04) | Northumberland-PA (40.77, 76.86) | Union-PA (40.86, 77.02) |
23 | 8 | Berkeley-WV (39.48, 78.03) | Morgan-WV (39.51, 78.17) | Jefferson-WV (39.38, 77.95) | Morgan-WV (39.58, 78.09) |
24 | 5 | San Francisco-CA (37.78, 122.42) | Marin-CA (37.83, 122.48) | San Mateo-CA (37.71, 122.42) | Alameda-CA (37.80, 122.34) |
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) |
26 | 3 | Roanoke city-VA (37.28, 79.97) | Roanoke-VA (37.32, 79.96) | Salem-VA (37.28, 80.01) | Roanoke-VA (37.28, 79.92) |
27 | 1 | Charlottesville-VA (38.04, 78.49) | Albemarle-VA (38.02, 78.49) | Albemarle-VA (38.05, 78.47) | Albemarle-VA (38.04, 78.52) |