Idaho

Six regions on county lines: Panhandle, North Central Idaho, Central Mountains, Treasure Valley, Magic Valley and Eastern Idaho.

In the editor each region takes a level with one click. When one region needs more detail, split it into its counties and set them one by one; merge it back when they agree.

Regions in this starter map

• Panhandle4 countiesBenewah County · Bonner County · Boundary County · Kootenai County
• North Central Idaho5 countiesIdaho County · Clearwater County · Lewis County · Nez Perce County · Latah County
• Central Mountains8 countiesAdams County · Boise County · Camas County · Custer County · Elmore County · Lemhi County · Shoshone County · Valley County
• Treasure Valley5 countiesAda County · Canyon County · Gem County · Payette County · Washington County
• Magic Valley7 countiesBlaine County · Gooding County · Jerome County · Lincoln County · Minidoka County · Owyhee County · Twin Falls County
• Eastern Idaho15 countiesBannock County · Bear Lake County · Bingham County · Bonneville County · Butte County · Caribou County · Cassia County · Clark County · Franklin County · Fremont County · Jefferson County · Madison County · Oneida County · Power County · Teton County

County lines from the Census Bureau, coastline from Natural Earth.