'Miami County' definitions:

Miami -- U.S. County in Kansas

From: Gazetteer 2000
Name :
Miami -- U.S. County in Kansas
Population (2000) :
28351
Housing Units (2000) :
10984
Land area (2000) :
576.719557 sq. miles (1493.696732 sq. km)
Water area (2000) :
13.431223 sq. miles (34.786706 sq. km)
Total area (2000) :
590.150780 sq. miles (1528.483438 sq. km)
Located within :
Kansas (KS), FIPS 20
Location :
38.568540 N, 94.851324 W

Miami -- U.S. County in Indiana

From: Gazetteer 2000
Name :
Miami -- U.S. County in Indiana
Population (2000) :
36082
Housing Units (2000) :
15299
Land area (2000) :
375.619304 sq. miles (972.849489 sq. km)
Water area (2000) :
1.742150 sq. miles (4.512147 sq. km)
Total area (2000) :
377.361454 sq. miles (977.361636 sq. km)
Located within :
Indiana (IN), FIPS 18
Location :
40.753246 N, 86.053583 W

Miami -- U.S. County in Ohio

From: Gazetteer 2000
Name :
Miami -- U.S. County in Ohio
Population (2000) :
98868
Housing Units (2000) :
40554
Land area (2000) :
407.041506 sq. miles (1054.232617 sq. km)
Water area (2000) :
2.178412 sq. miles (5.642062 sq. km)
Total area (2000) :
409.219918 sq. miles (1059.874679 sq. km)
Located within :
Ohio (OH), FIPS 39
Location :
40.059302 N, 84.242605 W