Obama's state director in Iowa is Jackie Norris, who was a key early supporter of Obama here. Other senior Iowa staffers are named in this post.

First Congressional district (D+5)
12 counties
represented by Bruce Braley (D)

Field offices are open in:

Davenport (Scott County), which is part of the Quad Cities along the Mississippi River.
Dubuque (Dubuque County), which is also along the Mississippi to the north of Davenport.
Waterloo (Black Hawk County), which is right next to Cedar Falls, a college town. Waterloo-Cedar Falls is the largest metropolitan area in northeast Iowa.
Independence (Buchanan County), a small town a little east of Waterloo.

Second Congressional district (D+7)
15 counties
represented by Dave Loebsack (D)

Field offices are open in:

Burlington (Des Moines County), along the Mississippi in the southeast part of the state.
Iowa City (Johnson County), a Democratic stronghold where the University of Iowa is located.
Ottumwa (Wapello County), a union stronghold that was one of only five Iowa counties to vote for John F. Kennedy in 1960 and one of only four Iowa counties to vote for Bonnie Campbell for governor in 1994.

A field office will open in Cedar Rapids (Linn County) later this year. Cedar Rapids is Iowa's second-largest city, and the city center suffered massive damage in last month's flooding.

Third Congressional district (D+1)
12 counties
represented by Leonard Boswell (D)

Field offices are open in:

Des Moines (Polk County), the largest city in a county that has about 15 percent of Iowa's population.
Oskaloosa (Mahaska County), a small town between Des Moines and Ottumwa.

Fourth Congressional district (D+0)
28 counties
represented by Tom Latham (R)

Field offices are open in:

Ames (Story County), where Iowa State University is located and about 40 miles north of Des Moines.
Marshalltown, (Marshall County), to the east of Ames.
Fort Dodge (Webster County), to the northwest of Ames.
Mason City (Cerro Gordo County), in the far north-central part of the state.

An office in Iowa Falls (Hardin County), north of Ames and Marshalltown but south of Mason City, will open later this year.

Fifth Congressional district (R+8)
32 counties
represented by Steve King (R)

Field offices are open in:

Council Bluffs (Pottawattamie County), on the Missouri River just opposite Omaha, Nebraska.
Sioux City (Woodbury County), the largest city in northwest Iowa, also along the Missouri River.

A few thoughts before I end this diary:

John McCain has opened a state headquarters in Urbandale (a suburb of Des Moines), but I haven't found any information about how many field offices he plans to open in Iowa.

Many progressive activists in Iowa share my concerns about the demise of the Iowa Democratic Party's coordinated campaign. It's worth noting that not every state party has ceded control over GOTV to the Obama campaign. See this post by Chris Bowers and the comment thread below it.

Obama is opening more offices in the eastern Iowa Congressional districts, where more Democrats live. But some counties in the fourth and fifth Congressional districts might be covered by field offices in other districts. For instance, the Des Moines office may handle GOTV in some counties to the south and west, which are part of the fourth or fifth districts.

It is too early to tell how much effort the Obama campaign will put into state legislative races. Many competitive Iowa House and Senate districts are in counties where Obama has field offices, but it's not clear whether the GOTV push will emphasize heavily Democratic areas of those counties, or areas where our House and Senate candidates need the most help.

I hope the Obama campaign will focus attention on the battleground districts for the Iowa House and Senate. He has never trailed McCain in a head-to-head poll in Iowa. The Democratic voter registration edge has increased substantially here during the past year. Also, McCain has never built a strong Iowa organization and barely campaigned here before the 2000 or 2008 caucuses. Which is to say that I think McCain has little chance of winning Iowa's electoral votes.

I encourage bloggers in other states to publish diaries about Obama's field operation. If that information has already been announced in your state, please put up a link or a comment about where Obama's field offices are.