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Annual average daily traffic (AADT)


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City and county traffic maps are updated every four years. For additional traffic information, contact Ron Bunting, 515-239-1323 or ronald.bunting@dot.iowa.gov.

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County traffic maps

County # County name
01 ADAIR 2012 2008 2004 2000
02 ADAMS 2012 2008 2004 2000
03 ALLAMAKEE 2013 2009 2005 2001
04 APPANOOSE 2010 2006 2002 1998
05 AUDUBON 2012 2008 2004 2000
06 BENTON 2013 2009 2005 2001
07 BLACK HAWK 2013 2009 2005 2001
08 BOONE 2011 2007 2003 1999
09 BREMER 2013 2009 2005 2001
10 BUCHANAN 2013 2009 2005 2001
11 BUENA VISTA 2011 2007 2003 1999
12 BUTLER 2013 2009 2005 2001
13 CALHOUN 2011 2007 2003 1999
14 CARROLL 2012 2008 2004 2000
15 CASS 2012 2008 2004 2000
16 CEDAR 2010 2006 2002 1998
17 CERRO GORDO 2013 2009 2005 2001
18 CHEROKEE 2011 2007 2003 1999
19 CHICKASAW 2013 2009 2005 2001
20 CLARKE 2012 2008 2004 2000
21 CLAY 2011 2007 2003 1999
22 CLAYTON 2013 2009 2005 2001
23 CLINTON 2010 2006 2002 1998
24 CRAWFORD 2012 2008 2004 2000
25 DALLAS 2012 2008 2004 2000
26 DAVIS 2010 2006 2002 1998
27 DECATUR 2012 2008 2004 2000
28 DELAWARE 2013 2009 2005 2001
29 DES MOINES 2010 2006 2002 1998
30 DICKINSON 2011 2007 2003 1999
31 DUBUQUE 2013 2009 2005 2001
32 EMMET 2011 2007 2003 1999
33 FAYETTE 2013 2009 2005 2001
34 FLOYD 2013 2009 2005 2001
35 FRANKLIN 2013 2009 2005 2001
36 FREMONT 2012 2008 2004 2000
37 GREENE 2012 2008 2004 2000
38 GRUNDY 2013 2009 2005 2001
39 GUTHRIE 2012 2008 2004 2000
40 HAMILTON 2011 2007 2003 1999
41 HANCOCK 2011 2007 2003 1999
42 HARDIN 2013 2009 2005 2001
43 HARRISON 2012 2008 2004 2000
44 HENRY 2010 2006 2002 1998
45 HOWARD 2013 2009 2005 2001
46 HUMBOLDT 2011 2007 2003 1999
47 IDA 2011 2007 2003 1999
48 IOWA 2010 2006 2002 1998
49 JACKSON 2013 2009 2005 2001
50 JASPER 2010 2006 2002 1998
51 JEFFERSON 2010 2006 2002 1998
52 JOHNSON 2010 2006 2002 1998
53 JONES 2013 2009 2005 2001
54 KEOKUK 2010 2006 2002 1998
55 KOSSUTH 2011 2007 2003 1999
56 LEE 2010 2006 2002 1998
57 LINN 2013 2009 2005 2001
58 LOUISA 2010 2006 2002 1998
59 LUCAS 2010 2006 2002 1998
60 LYON 2011 2007 2003 1999
61 MADISON 2012 2008 2004 2000
62 MAHASKA 2010 2006 2002 1998
63 MARION 2010 2006 2002 1998
64 MARSHALL 2013 2009 2005 2001
65 MILLS 2012 2008 2004 2000
66 MITCHELL 2013 2009 2005 2001
67 MONONA 2012 2008 2004 2000
68 MONROE 2010 2006 2002 1998
69 MONTGOMERY 2012 2008 2004 2000
70 MUSCATINE 2010 2006 2002 1998
71 O'BRIEN 2011 2007 2003 1999
72 OSCEOLA 2011 2007 2003 1999
73 PAGE 2012 2008 2004 2000
74 PALO ALTO 2011 2007 2003 1999
75 PLYMOUTH 2011 2007 2003 1999
76 POCAHONTAS 2011 2007 2003 1999
77 POLK 2012 2008 2004 2000
78 POTTAWATTAMIE 2012 2008 2004 2000
79 POWESHIEK 2010 2006 2002 1998
80 RINGGOLD 2012 2008 2004 2000
81 SAC 2011 2007 2003 1999
82 SCOTT 2010 2006 2002 1998
83 SHELBY 2012 2008 2004 2000
84 SIOUX 2011 2007 2003 1999
85 STORY 2011 2007 2003 1999
86 TAMA 2013 2009 2005 2001
87 TAYLOR 2012 2008 2004 2000
88 UNION 2012 2008 2004 2000
89 VAN BUREN 2010 2006 2002 1998
90 WAPELLO 2010 2006 2002 1998
91 WARREN 2012 2008 2004 2000
92 WASHINGTON 2010 2006 2002 1998
93 WAYNE 2010 2006 2002 1998
94 WEBSTER 2011 2007 2003 1999
95 WINNEBAGO 2011 2007 2003 1999
96 WINNESHIEK 2013 2009 2005 2001
97 WOODBURY 2011 2007 2003 1999
98 WORTH 2013 2009 2005 2001
99 WRIGHT 2011 2007 2003 1999