{{Short description|State highway in Iowa, United States}} {{redirect|IA 9|the former congressional district|Iowa's congressional districts}} {{Use American English|date=April 2025}} {{Use mdy dates|date=January 2025}} {{Infobox road |state=IA |type=IA |route=9 |alternate_name= |map={{maplink|frame=yes|plain=yes|frame-align=center|frame-width=290|type=line|raw={{Wikipedia:Map data/Wikipedia KML/Iowa Highway 9}}}} |map_custom=yes |map_notes=Iowa 9 highlighted in red |length_mi=295.088 |length_ref=<ref name="IowaDOT">{{IowaDOT|2011-01-15|year=2009}}</ref> |established=1920<ref name="1921 Rand">{{cite map|publisher=Rand McNally|title=Official Auto Trails Map|year=1921|scale=1:1,081,344|page=330-331}}</ref> |direction_a=West |terminus_a={{Jct|state=SD|SD|42}} near Larchwood |junction={{plainlist| *{{Jct|state=IA|US|75}} in Rock Rapids *{{Jct|state=IA|IA|60}} near Sibley *{{Jct|state=IA|US|59}} near Allendorf *{{Jct|state=IA|US|71}} at Spirit Lake *{{Jct|state=IA|US|169}} at Lakota *{{Jct|state=IA|US|69}} at Forest City *{{Jct|state=IA|I|35}} near Hanlontown *{{Jct|state=IA|US|63}} near Saratoga *{{Jct|state=IA|US|52}} in Decorah }} |direction_b=East |terminus_b={{Jct|state=WI|WI|82}} in Lansing |counties={{flatlist| *Lyon *Osceola *Dickinson *Emmet *Kossuth *Winnebago *Worth *Mitchell *Howard *Winneshiek *Allamakee }} |previous_type=IA |previous_route=8 |next_type=IA |next_route=10 }}
'''Iowa Highway 9''' is the most northern of Iowa's east–west highways, traversing the entire northern tier of counties. It runs from the eastern terminus of South Dakota Highway 42 at the South Dakota border east of Sioux Falls, South Dakota near Benclare, to the Wisconsin border at Lansing where it continues as Wisconsin Highway 82. It is largely rural in character, bypassing any large city. Making a few dips north and south, the highway largely follows a very straight east–west alignment.
==Route description== ===Northwest Iowa=== thumb|left|Iowa 9 looking west in Larchwood Iowa 9 enters Iowa from South Dakota as a continuation of South Dakota Highway 42. At the same place the highway passes by Grand Falls Casino. The highway's entry point is {{convert|4+1/2|mi|spell=in}} east of Iowa's northwestern corner. It heads south and east through Lyon County until it reaches Larchwood. There, it turns south for about a mile (1.5 km) where it meets the northern end of Iowa 182. From here, the highway runs due east for {{convert|12|mi|spell=in}}. During this straight stretch, it passes just to the south of Lester. Just west of Rock Rapids, it meets U.S. Highway 75 (US 75). The two routes overlap one another for {{convert|1|mi|spell=in}} as the travel through northern Rock Rapids. US 75 splits away to the south and Iowa 9 heads into downtown Rock Rapids, where it crosses the Rock River.
East of Rock Rapids, the highway follows a section line that is {{convert|4+1/2|mi|spell=in}} south of the Minnesota state line. Halfway between Rock Rapids and Little Rock, Iowa 9 intersects the northern and southern legs of County Road L14, which were previously Iowa 91 and Iowa 339, respectively. The highway passes Little Rock to the south and enters Osceola County. It continues east for {{convert|7+1/2|mi|spell=in|0}} until it reaches an interchange with Iowa 60 north of Sibley, that highway's final exit before entering Minnesota. Shortly thereafter, Iowa 9 meets US 59. The highway eases to the south as it follows the section line. It passes to the north of Ocheyedan and to the south of Rush Lake and Harris.
As Iowa 9 enters Dickinson County, it goes south of Silver Lake and Lake Park. It crosses the western and eastern branches of the Little Sioux River, which converge just south of the highway. The intersection with Iowa 86 marks Iowa 9's entry into the Iowa Great Lakes region. It becomes a four-lane divided highway for a short distance as it curves slightly to the south. In northwestern Spirit Lake, Iowa 9 is joined by US 71 from the south and they travel east through the downtown area. The highways turn sharply to the northeast in order to cross a narrow portion of East Okoboji Lake. They briefly follow the shore before turning back to the east and exiting Spirit Lake. {{Convert|4|mi|spell=In}} east of town, US 71 turns to the north and Iowa 9 continues towards Superior. Iowa 9 enters Emmet County and curves to the southeast as it approaches Estherville. There, it crosses the West Fork Des Moines River and Iowa 4. It continues due east for {{convert|15|mi|spell=in}}. Just west of Armstrong, it dips to the south and enters the southern part of town. It is overlapped by Iowa 15 for two blocks, a mere {{convert|600|ft|m}}.
===North Central Iowa=== In Kossuth County, Iowa 9 passes through Swea City. East of Swea City, it is joined by U.S. Route 169. It passes north of Lakota, where US 169 turns north. Travelling through Buffalo Center in Winnebago County, the route takes a short southerly dip to pass northeast of Thompson, continues east, and then south overlapping U.S. Route 69 to the northern edge of Forest City where it again turns east. thumb|left|Iowa 9 follows US 69 for a few miles in Winnebago County In Worth County, it travels past the northern edges of Fertile and Hanlontown, where it soon crosses Interstate 35. East of I-35, it passes through the south side of Manly.
In Mitchell County, it makes a straight run to and through Osage, where it begins a concurrence with U.S. Route 218. East of where US 218 turns south, Iowa 9 swings back north and resumes going east to Riceville, crossing the Wapsipinicon River in the process. [[File:Osage iowa.jpg|thumb|left|U.S. Highway 218 and Iowa Highway 9 briefly overlap through Osage.|alt=A car stopped at a traffic signal in the downtown area of a small town.]]
===Northeast Iowa=== [[File:Cresco, Iowa.jpg|thumb|IA-9 through Cresco, Iowa]] In Howard County, the highway makes a transition into the Driftless Area of Iowa, with progressively more rugged terrain evident as one travels east. West of Cresco, and south of Lime Springs, it crosses U.S. Route 63 before going through Cresco. In the process, it crosses two tributaries of the Turkey River. [[File:Lansing Iowa bridge-7.jpg|thumb|left|400px|The Black Hawk Bridge marks the eastern end of Iowa 9, the southern end of Iowa 26, and the western end of WIS 82.|alt=Summertime overlooking a wide and winding river. A small town is to the right. An old steel cantilever-truss bridge dominates the foreground.]] In Winneshiek County, it runs southeasterly, straightening out to go through Decorah in the valley of the Upper Iowa River. In Decorah, it crosses U.S. Route 52. It again takes a southeasterly drift. In Allamakee County, the highway becomes crooked. Just east of the county line, Iowa Highway 51 meets its northern terminus. Running south of Waukon, it then turns north through Waukon, briefly joined by Iowa Highway 76. In the northern part of Waukon, it curves north and east, into Lansing, through the valley of Clear Creek and downtown Lansing. Just before crossing the Mississippi River, it meets the southern terminus of Iowa Highway 26. It then turns onto the Black Hawk Bridge, where it joins Wisconsin Highway 82.
{{Clear}}
==Major intersections== {{Jcttop|length_ref=<ref name="IowaDOT" />}} {{IAint |county=Lyon |cspan=7 |township=Sioux |ctdab=Lyon |mile=0.000 |road={{Jct|state=IA|SD|42|dir1=west|CR|A10|county2=Lyon|dir2=east|location1=Sioux Falls, S.D.}} |notes=Continuation into South Dakota; CR A10 follows the state line }} {{IAint |township1=Larchwood |township2=Logan |ctdab=Lyon |mile=7.262 |road={{Jct|state=IA|IA|182|dir1=south|city1=Inwood}} }} {{IAint |township1=Riverside |township2=Rock |ctdab=Lyon |type=concur |mile=19.029 |road={{Jct|state=IA|US|75|dir1=north|location1=Luverne, Minn.}} |notes=Western end of US 75 overlap }} {{IAint |location=Rock Rapids |type=concur |mile=20.021 |road={{Jct|state=IA|US|75|dir1=south|name1=Union Street}} |notes=Eastern end of US 75 overlap }} {{IAint |township1=Midland |township2=Liberal |ctdab=Lyon |lspan=2 |mile=27.951 |road={{Jct|state=IA|CR|L14|location1=Ellsworth, Minn.}} |notes=Former Iowa 91 }} {{IAint |mile=28.951 |road={{Jct|state=IA|CR|L14|city1=George}} |notes=Former Iowa 339 }} {{IAint |township1=Elgin |township2=Grant |ctdab=Lyon |mile=34.733 |road=Maple Avenue |notes=Former Iowa 189 }} {{IAint |county=Osceola |cspan=4 |township1=Wilson |township2=East Holman |ctdab=Osceola |lspan=2 |mile=43.268 |road={{jct|state=IA|IA|60|city1=Le Mars|location2=Worthington, Minn.}} |notes=Interchange; Iowa 60 exit 53 }} {{IAint |mile=46.808 |road={{Jct|state=IA|US|59|city1=Sanborn|location2=Worthington, Minn.}} }} {{IAint |township1=Horton |township2=Ocheyedan |ctdab=Osceola |mile=52.280 |road={{Jct|state=IA|CR|L58|city1=Ocheyedan}} |notes=Former Iowa 237 }} {{IAint |township1=Fairview |township2=Allison |ctdab=Osceola |mile=57.349 |road={{Jct|state=IA|CR|M20|city1=Harris}} |notes=Former Iowa 238 }} {{IAint |county=Dickinson |cspan=6 |township1=Silver Lake |township2=Excelsior |ctdab=Dickinson |mile=62.882 |road={{Jct|state=IA|CR|M27|city1=Lake Park}} |notes=Former Iowa 219 }} {{IAint |township1=Diamond Lake |township2=Lakeville |ctdab=Dickinson |mile=70.090 |road={{Jct|state=IA|IA|86|city1=Milford|location2=Lakefield, Minn.}} }} {{IAint |location=Spirit Lake |lspan=2 |type=concur |mile=72.978 |road={{Jct|state=IA|US|71|dir1=south|city2=Milford}} |notes=Western end of US 71 overlap }} {{IAint |mile=74.186 |road=Hill Avenue |notes=Former Iowa 276 }} {{IAint |township1=Superior |township2=Richland |ctdab=Dickinson |lspan=2 |type=concur |mile=79.984 |road={{Jct|state=IA|US|71|dir1=north|location1=Jackson, Minn.}} |notes=Eastern end of US 71 overlap }} {{IAint |mile=80.988 |road={{Jct|state=IA|CR|N14|city1=Terril}} |notes=Former Iowa 203 }} {{IAint |county=Emmet |cspan=3 |location=Estherville |mile=88.639 |road={{Jct|state=IA|IA|4|name1=9th Street|city1=Emmetsburg|location2=Sherburn, Minn.}} }} {{IAint |location=Armstrong |lspan=2 |type=concur |mile=106.493 |road={{Jct|state=IA|IA|15|dir1=south|name1=4th Street|city1=Ringsted}} |notes=Western end of Iowa 15 overlap }} {{IAint |type=concur |mile=106.608 |road={{Jct|state=IA|IA|15|dir1=north|name1=6th Street|location1=Fairmont, Minn.}} |notes=Eastern end of Iowa 15 overlap }} {{IAint |county=Kossuth |cspan=3 |township=Harrison |ctdab=Kossuth |type=concur |mile=119.989 |road={{Jct|state=IA|US|169|dir1=south|city1=Bancroft|city2=Algona}} |notes=Western end of US 169 overlap }} {{IAint |location=Lakota |lspan=2 |mile=126.186 |road=188th Avenue – Lakota |notes=Former Iowa 250 }} {{IAint |type=concur |mile=126.429 |road={{Jct|state=IA|US|169|dir1=north|location1=Blue Earth, Minn.}} |notes=Eastern end of US 169 overlap }} {{IAint |county=Winnebago |cspan=4 |location=Buffalo Center |mile=134.325 |road={{Jct|state=IA|CR|R20|city1=Rake}} |notes=Former Iowa 254 }} {{IAint |township=Newton |ctdab=Winnebago |type=concur |mile=149.811 |road={{Jct|state=IA|US|69|dir1=north|city1=Lake Mills}} |notes=Western end of US 69 overlap }} {{IAint |location=Forest City |type=concur |mile=156.837 |road={{Jct|state=IA|US|69|dir1=south|city1=Garner}} |notes=Eastern end of US 69 overlap }} {{IAint |township=Mount Valley |ctdab=Winnebago |mile=160.184 |road=250th Avenue – Pilot Knob State Park |notes=Former Iowa 332 }} {{IAint |county=Worth |cspan=4 |township=Fertile |ctdab=Worth |mile=167.696 |road={{Jct|state=IA|CR|S18|city1=Fertile}} |notes=Former Iowa 86 }} {{IAint |township=Danville |ctdab=Worth |mile=171.951 |road={{jct|state=IA|I|35|AOTS|27|city1=Des Moines|location2=Minneapolis}} |notes=I-35 exit 203 }} {{IAint |location=Manly |mile=178.962 |road={{jct|state=IA|US|65|name1=Orchid Avenue|city1=Northwood|city2=Mason City}} }} {{IAint |township=Union |ctdab=Worth |mile=186.370 |road={{jct|state=IA|CR|S62|city1=Grafton}} |notes=Former Iowa 337 }} {{IAint |county=Mitchell |cspan=3 |location=Osage |type=concur |mile=199.124 |road={{jct|state=IA|US|218|dir1=north|name1=N. 7th Street|city1=St. Ansgar}} |notes=Western end of US 218 overlap }} {{IAint |township=Burr Oak |ctdab=Mitchell |type=concur |mile=203.121 |road={{Jct|state=IA|US|218|dir1=south|city1=Floyd}} |notes=Eastern end of US 218 overlap }} {{IAint |township=Jenkins |ctdab=Mitchell |mile=215.087 |road={{Jct|state=IA|CR|T64|city1=McIntire}} |notes=Former Iowa 312 }} {{IAint |county=Howard |cspan=2 |township=Howard Center |ctdab=Howard |mile=230.040 |road={{Jct|state=IA|US|63|city1=New Hampton|location2=Rochester, Minn.}} }} {{IAint |location=Cresco |mile=239.008 |road={{Jct|state=IA|CR|V58|city1=Protivin}} |notes=Former Iowa 139 south }} {{IAint |county1=Howard |county2=Winneshiek |township1=Vernon Springs |ctdab1=Howard |township2=Orleans |ctdab2=Winneshiek |mile=241.025 |road={{Jct|state=IA|IA|139|dir1=north|location1=Harmony, Minn.}} }} {{IAint |county=Winneshiek |cspan=2 |location=Decorah |lspan=2 |mile=258.036 |road={{jct|state=IA|US|52|city1=Calmar|location1=Rochester, Minn.}} }} {{IAint |mile=258.450 |road=Short Street |notes=Former US 52 }} {{IAint |county=Allamakee |cspan=4 |township=Ludlow |ctdab=Allamakee |mile=271.609 |road={{Jct|state=IA|IA|51|dir1=south|city1=Postville}} }} {{IAint |township=Jefferson |ctdab=Allamakee |type=concur |mile=276.278 |road={{jct|state=IA|IA|76|dir1=south|city1=Marquette|location2=Effigy Mounds National Monument}} |notes=Western end of Iowa 76 overlap }} {{IAint |location=Waukon |type=concur |mile=278.285 |road={{Jct|state=IA|IA|76|dir1=north|name1=Main Street|location1=Eitzen, Minn.}} |notes=Eastern end of Iowa 76 overlap }} {{IAint |location=Lansing |type= |mile=295.246 |road={{Jct|state=IA|IA|26|GRR||dir2=north|name2=2nd Street|WI|82|dir3=east|location1=De Soto, Wis.|city2=New Albin}} |notes=Signed end of Iowa 9 }} {{Jctbridge |river=Mississippi River |lspan=2 |type=closed |mile=295.472 |mspan=2 |bridge=Black Hawk Bridge; Iowa–Wisconsin state line }} {{WIint |mile=none |type=closed |road={{Jct|state=IA|WI|82|dir1=east|location1=De Soto, Wis.}} |notes=Continuation into Wisconsin }} {{Jctbtm|keys=concur,closed}}
==References== {{reflist}} * ''Iowa Atlas and Gazetteer'', 3rd edition, DeLorme, 2004. * ''2007 Transportation Map'', Iowa Department of Transportation, 2007.
{{Attached KML}}
009 Category:Transportation in Worth County, Iowa Category:Transportation in Allamakee County, Iowa Category:Transportation in Emmet County, Iowa Category:Transportation in Lyon County, Iowa Category:Transportation in Osceola County, Iowa Category:Transportation in Dickinson County, Iowa Category:Transportation in Kossuth County, Iowa Category:Transportation in Winnebago County, Iowa Category:Transportation in Mitchell County, Iowa Category:Transportation in Howard County, Iowa Category:Transportation in Winneshiek County, Iowa