maps

County annual average daily traffic (AADT) maps


City and county traffic maps are updated every four years. We also provide statewide vehicular, truck and interstate traffic maps, as well as interactive statewide traffic maps for all roadways and the turning movement counts for select intersections.

For additional traffic information, contact Ron Bunting, 515-239-1323 or ronald.bunting@iowadot.us.


County # County name
01 ADAIR 2016 2012 2008 2004 2000
02 ADAMS 2016 2012 2008 2004 2000
03 ALLAMAKEE 2017 2013 2009 2005 2001  
04 APPANOOSE 2014 2010 2006 2002 1998
05 AUDUBON 2016 2012 2008 2004 2000
06 BENTON 2017 2013 2009 2005 2001  
07 BLACK HAWK 2017 2014 2013 2009 2005 2001
08 BOONE 2015 2011 2007 2003 1999
09 BREMER 2017 2013 2009 2005 2001  
10 BUCHANAN 2017 2013 2009 2005 2001  
11 BUENA VISTA 2015 2011 2007 2003 1999
12 BUTLER 2017 2013 2009 2005 2001  
13 CALHOUN 2015 2011 2007 2003 1999
14 CARROLL 2016 2012 2008 2004 2000
15 CASS 2016 2012 2008 2004 2000
16 CEDAR 2014 2010 2006 2002 1998
17 CERRO GORDO 2017 2013 2009 2005 2001  
18 CHEROKEE 2015 2011 2007 2003 1999
19 CHICKASAW 2017 2013 2009 2005 2001  
20 CLARKE 2016 2012 2008 2004 2000
21 CLAY 2015 2011 2007 2003 1999
22 CLAYTON 2017 2013 2009 2005 2001  
23 CLINTON 2014 2010 2006 2002 1998
24 CRAWFORD 2016 2012 2008 2004 2000
25 DALLAS 2016 2012 2008 2004 2000
26 DAVIS 2014 2010 2006 2002 1998
27 DECATUR 2016 2012 2008 2004 2000
28 DELAWARE 2017 2013 2009 2005 2001  
29 DES MOINES 2014 2010 2006 2002 1998
30 DICKINSON 2015 2011 2007 2003 1999
31 DUBUQUE 2017 2013 2009 2005 2001  
32 EMMET 2015 2011 2007 2003 1999
33 FAYETTE 2017 2013 2009 2005 2001  
34 FLOYD 2017 2013 2009 2005 2001  
35 FRANKLIN 2017 2013 2009 2005 2001  
36 FREMONT 2016 2012 2008 2004 2000
37 GREENE 2016 2012 2008 2004 2000
38 GRUNDY 2017 2013 2009 2005 2001  
39 GUTHRIE 2016 2012 2008 2004 2000
40 HAMILTON 2015 2011 2007 2003 1999
41 HANCOCK 2015 2011 2007 2003 1999
42 HARDIN 2017 2013 2009 2005 2001  
43 HARRISON 2016 2012 2008 2004 2000
44 HENRY 2014 2010 2006 2002 1998
45 HOWARD 2017 2013 2009 2005 2001  
46 HUMBOLDT 2015 2011 2007 2003 1999
47 IDA 2015 2011 2007 2003 1999
48 IOWA 2014 2010 2006 2002 1998
49 JACKSON 2017 2013 2009 2005 2001  
50 JASPER 2014 2010 2006 2002 1998
51 JEFFERSON 2014 2010 2006 2002 1998
52 JOHNSON 2014 2010 2006 2002 1998
53 JONES 2017 2013 2009 2005 2001  
54 KEOKUK 2014 2010 2006 2002 1998
55 KOSSUTH 2015 2011 2007 2003 1999
56 LEE 2014 2010 2006 2002 1998
57 LINN 2017 2013 2009 2005 2001  
58 LOUISA 2014 2010 2006 2002 1998
59 LUCAS 2014 2010 2006 2002 1998
60 LYON 2015 2011 2007 2003 1999
61 MADISON 2016 2012 2008 2004 2000
62 MAHASKA 2014 2010 2006 2002 1998
63 MARION 2014 2010 2006 2002 1998
64 MARSHALL 2017 2013 2009 2005 2001  
65 MILLS 2016 2012 2008 2004 2000
66 MITCHELL 2017 2013 2009 2005 2001  
67 MONONA 2016 2012 2008 2004 2000
68 MONROE 2014 2010 2006 2002 1998
69 MONTGOMERY 2016 2012 2008 2004 2000
70 MUSCATINE 2014 2010 2006 2002 1998
71 O'BRIEN 2015 2011 2007 2003 1999
72 OSCEOLA 2015 2011 2007 2003 1999
73 PAGE 2016 2012 2008 2004 2000
74 PALO ALTO 2015 2011 2007 2003 1999
75 PLYMOUTH 2015 2011 2007 2003 1999
76 POCAHONTAS 2015 2011 2007 2003 1999
77 POLK COUNTY 2016 2012 2008 2004 2000
77 POLK METRO DETAIL 2016 2012 2008 2004 2000
78 POTTAWATTAMIE 2016 2012 2008 2004 2000
79 POWESHIEK 2014 2010 2006 2002 1998
80 RINGGOLD 2016 2012 2008 2004 2000
81 SAC 2015 2011 2007 2003 1999
82 SCOTT 2014 2010 2006 2002 1998
83 SHELBY 2016 2012 2008 2004 2000
84 SIOUX 2015 2011 2007 2003 1999
85 STORY 2015 2011 2007 2003 1999
86 TAMA 2017 2013 2009 2005 2001  
87 TAYLOR 2016 2012 2008 2004 2000
88 UNION 2016 2012 2008 2004 2000
89 VAN BUREN 2014 2010 2006 2002 1998
90 WAPELLO 2014 2010 2006 2002 1998
91 WARREN 2016 2012 2008 2004 2000
92 WASHINGTON 2014 2010 2006 2002 1998
93 WAYNE 2014 2010 2006 2002 1998
94 WEBSTER 2015 2011 2007 2003 1999
95 WINNEBAGO 2015 2011 2007 2003 1999
96 WINNESHIEK 2017 2013 2009 2005 2001  
97 WOODBURY 2015 2011 2007 2003 1999
98 WORTH 2017 2013 2009 2005 2001  
99 WRIGHT 2015 2011 2007 2003 1999