Editing Greene County, Illinois (section)

==Geography==
According to the [[United States Census Bureau|US Census Bureau]], the county has a total area of {{convert|546|sqmi}}, of which {{convert|543|sqmi}} is land and {{convert|3.3|sqmi}} (0.6%) is water.<ref name=CD/>

===Climate and weather===
{{climate chart
|[[Carrollton, Illinois]]
|16|34|1.60
|20|40|1.75
|30|52|3.28
|42|64|3.55
|52|74|4.34
|61|83|3.56
|65|87|3.37
|63|85|2.84
|54|78|2.96
|43|67|2.62
|32|52|3.25
|21|39|2.57
|float=right
|units=imperial
|clear=both
|source=The Weather Channel<ref name=WX>{{cite web|url=http://www.weather.com/weather/wxclimatology/monthly/graph/USIL0194|title=Monthly Averages for Carrollton, Illinois|access-date=January 27, 2011|publisher=The Weather Channel}}</ref>}}
In recent years, average temperatures in the county seat of Carrollton have ranged from a low of {{convert|16|°F}} in January to a high of {{convert|87|°F}} in July, although a record low of {{convert|-26|°F}} was recorded in January 1912 and a record high of {{convert|113|°F}} was recorded in July 1934.  Average monthly precipitation ranged from {{convert|1.60|in}} in January to {{convert|4.34|in}} in May.<ref name=WX/>

===Major highways===
{{div col}}
* [[Image:US 67.svg|20px]] [[U.S. Highway 67]]
* [[Image:Illinois 16.svg|20px]] [[Illinois Route 16]]                                                                                                       
* [[Image:Illinois 100.svg|20px]] [[Illinois Route 100]]                                                                                                     
* [[Image:Illinois 106.svg|20px]] [[Illinois Route 106]]                                                                                                     
* [[Image:Illinois 108.svg|20px]] [[Illinois Route 108]]
* [[Image:Illinois 267.svg|20px]] [[Illinois Route 267]]
{{div col end}}

===Adjacent counties===
{{div col}}
* [[Scott County, Illinois|Scott County]] - north
* [[Morgan County, Illinois|Morgan County]] - north
* [[Macoupin County, Illinois|Macoupin County]] - east
* [[Jersey County, Illinois|Jersey County]] - south
* [[Calhoun County, Illinois|Calhoun County]] - southwest
* [[Pike County, Illinois|Pike County]] - northwest
{{div col end}}

===National protected area===
* [[Two Rivers National Wildlife Refuge]] (part: Apple Creek Division)