Postal officials were blunt in December when they stood before 120 residents in Dedham, Iowa, to tell them why their town’s post office has to close. The Internet, officials said, was killing the U.S. Postal Service.

“Well, I have no Internet,” resident Judy Ankenbauer said at the meeting. Like many of Dedham’s 280 residents, Ankenbauer said she still relies on the post office to buy stamps and send letters and packages.

Dedham is hardly alone in its dependence on the Postal Service. Some of the nation’s poorest communities, many of them with spotty broadband Internet coverage, stand to suffer most if the struggling agency moves ahead with plans to shutter thousands of post offices this year, a Reuters analysis found. Nearly 80 percent of the 3,830 post offices under consideration are in sparsely populated rural areas where poverty rates are higher than the national average.

Moreover, about one-third of the offices slated for closure fall in areas with limited or no wired broadband Internet.

“We’re not the ones in the big cities who are just e-mailing everything to everybody. We’re the ones that are actually still sending our Christmas cards and our birthday cards,” said Sarah Clyden, who runs a feed store in Oakwood, Okla., where the agency is considering closing the post office.

Federal law requires the Postal Service to provide “a maximum degree of effective and regular postal services” to rural areas and small towns. Today, with 32,000 retail locations and 150 million delivery points, the Postal Service has a larger footprint in the United States than McDonald’s, Starbucks and Wal-Mart combined, according to its Web site.

Even so, the rise of e-mail, a drop-off in first-class mail, onerous labor costs and the growth of shippers such as UPS and FedEx have left the Postal Service hemorrhaging money. By fall, postal officials have warned, they might not be able to borrow money.

The Postal Service is not studying the economic impact on communities where post offices are slated to close, spokesman David Partenheimer said. But in the 3,004 rural areas across 48 states where post offices might close, many residents fear the impact will be pronounced.

About 2.9 million people live in the rural communities where a post office that might close is the only one or one of two serving their Zip code. For many rural residents, that would translate into longer drives to mail packages, pay bills or buy stamps.

Like all the post offices on the closure lists, the post offices in Dedham and Oakwood wouldn’t close until mid-May, thanks to a temporary moratorium on closings put in place in December. It was intended to give Congress a window to pass legislation offering the Postal Service some relief. But with lawmakers still deeply divided over how to address the Postal Service’s financial woes, state and local government officials worry thousands of closings are on the way.

“The Postal Service is supposed to be a universal service available to people wherever they live in America,” said Iowa Gov. Terry Branstad (R), who pushed hard for the moratorium. “What they’re doing is going against that premise.”

‘Drop in the bucket’

The Postal Service chose post offices for possible closure based primarily on revenue. Two-thirds of the 3,830 post offices slated for closure made less than $27,500 in annual sales, postal data show. Nearly 90 percent of them are in rural areas, where shrinking populations and dwindling businesses mean the post offices simply cost more to operate than they earn.

“These offices are decreasing in revenue year after year after year,” said Dean Granholm, the Postal Service’s vice president for delivery.

Despite a request under the Freedom of Information Act, the Postal Service declined to provide data on revenue for individual post offices. But it did provide expense data for all post offices. The statistics show that closing all the post offices under consideration would save about $295 million a year, about four-tenths of 1 percent of the Postal Service’s annual expenses of $70 billion.

“That’s a drop in the bucket,” said William Henderson, postmaster general from 1998 to 2001. Then he corrected himself. “That’s not even a drop in the bucket. The bucket won’t ripple.”

The Postal Service says the closures are necessary because people increasingly are turning to the Internet to send e-mail and pay bills, resulting in plummeting mail volume and revenue.

“We’ve lost our business to the, you know, online communications,” Kent Gochenour, an Iowa postal official, told residents at the town hall in Dedham.

To match the falling demand, the agency says it needs to cut $20 billion in operating expenses by 2015. Restructuring health-care programs, eliminating jobs, ending Saturday delivery and closing post offices are among the moves considered, though some of them would require permission from a Congress that remains deeply divided on how to address the Postal Service’s woes.

“When you deal with billions, there’s nothing that you should ignore, even if it’s only a couple percentage points of your total operating costs,” Postmaster General Patrick Donahoe said.

But for many in the communities where post offices are slated to close, doing business online is not an easy option. Trinchera, Colo., a rural town near the New Mexico state line, lacks wired broadband. Rancher Carlos Sandoval said he relies on the post office for everything except groceries. He said he uses a computer only when he visits his daughter “in town” — Trinidad, Colo., about 15 miles from his home.

Like Sandoval, about a third of the 110 people served by the Trinchera post office have no Internet access, according to Gene Caldwell. The 82-year-old began mustering statistics last fall to share with postal officials at a community meeting.

Many residents live as many as 50 miles from the nearest town, and to get there, they travel mostly on unpaved roads, Caldwell said. They rely on the Postal Service for livestock vaccinations and medicines, notices of livestock sales, trade newspapers and other items.

Nationwide, about 1.7 million people live near post offices slated for closure in areas with limited or no broadband Internet service.

“We’re targeting the wrong people,” said Mark Strong, president of the National League of Postmasters. “We probably should have taken a look to see if first of all they have Internet accessibility in their communities.”

Digital divide

Internet access has spread the way most businesses expand: to areas more densely populated with people willing to pay for the service. Today, rural areas remain less connected to the Internet than urban populations across every technology type, according to Commerce Department data. Nearly 90 percent of the 24 million Americans without wired broadband access live in rural areas.

“There’s still a real digital divide between rural and urban America,” said Ed Luttrell, head of the National Grange, which represents rural areas. “You look at rural folks, they tend to rely much more heavily on the Postal Service for delivery of a wide variety of necessities.”

Reuters gauged communities’ Internet connectivity by comparing their locations with a national map of wired broadband availability that’s compiled by the Commerce Department. Areas were identified that met the most basic government threshold of 768 kilobyte per-second-download speed, which corresponds roughly to the 3G service on most phones. In areas lacking wired broadband, residents may connect online through a satellite or wireless provider.

But higher costs and lower dependability often discourage individuals and businesses from using the Internet for commercial transactions, and many older residents have never trusted online commerce or owned a computer.

“I have a phone, a newspaper and a post office. And the post office is No. 1,” said Ankenbauer, 59.

Elsewhere, the steady flow of personal and business communications online has chipped away at mail volume. In 2002, first class mail, the Postal Service’s most profitable product, began to decline. The downturn exacerbated the drop-off. Total mail volumes have fallen more than 20 percent since 2006, and an additional 24 percent decline is predicted by 2020.

Granholm said the agency is offering a range of substitutes for traditional post offices services because the Postal Service does not consider its Web site a complete replacement. Still, “if customers do have broadband access, I think a lot of customers would choose to use our online service,” Granholm said.

Profound impact

Losing a post office could stifle small businesses and prevent towns from recruiting new employers, residents say. Most of the closings are in rural areas, where the poverty rates for surrounding communities are higher than the national average of 15.3 percent. In communities with limited or no broadband Internet, the economic disparities are even more pronounced.

“The postmaster general doesn’t have a clue about what’s going on in rural America, and it shows,” Sen. Jon Tester (D-Mont.) said.

In Allen, S.D., a town on the Pine Ridge Indian Reservation where almost all the residents live below the poverty line, Warren Yellow Hair wants to make more money by scaling up his mail-order art business to include Internet sales now that he has bought his first computer. But with the Allen post office slated for closure, Yellow Hair worries that he will have to drive 40 miles round-trip to mail his tipis, drums and drawings to customers.

“I’ll just have to pass the charge on to the customer, and I sure don’t want to do that,” Yellow Hair said.

Business owners across the country are making similar calculations.

Sharon Voss, who runs a produce market in Copalis Crossing, Wash., thinks her customers would pay to have fruits and vegetables mailed each week to elderly family members who live alone. But she said she might rethink a mail-order expansion if the post office will no longer be down the block.

Ron Christensen of Lohrville, Iowa, relies on low Postal Service shipping rates to keep afloat his Air Electric Machine Co., which makes ornamental steel windmills. If the post office closes, he plans to drive 17 miles round-trip to the next nearest one to avoid paying extra through UPS or FedEx.

About 3,250 of the 3,830 post offices on the closure lists fall in Zip codes where UPS and FedEx charge more for delivery. Town mayors and chambers of commerce also worry about the broader economic impact of losing a post office. With small populations, remote locations and a lack of reliable Internet, many towns are already a tough sell to new businesses.

Skeptical of alternatives

The Postal Service is touting alternatives to brick-and-mortar post offices. One strategy has the agency contracting with some local businesses to offer basic postal services.

Six months after announcing the Village Post Office plan, the Postal Service had fewer than a dozen fully operating.

“In some of these areas . . . there is no option to have a Village Post Office because there’s no stores or other facilities,” Donahoe said.

Another plan is to expand the use of rural letter carriers, who are equipped to sell stamps, pick up packages and fulfill money orders, in addition to delivering the mail, Granholm said. The carriers, who already serve many rural communities, would also drop off packages and other items at roadside mailboxes or clustered mailboxes in a central location.

Jeanette Dwyer, president of the National Rural Letter Carriers’ Association, said rural carriers can provide a variety of services for residents who cannot easily access a post office. But they are not a full replacement for a physical post office.

“I don’t believe it’s the most cost-efficient thing for them to do, to just say we’re going to close every small post office,” Dwyer said. “The American public has to have service.”

Many residents said they are wary of relying on a rural carrier for time-sensitive or valuable packages. Carriers might not be deterred by snow or sleet, but some customers say they would be.

“I’m not standing out in the blizzard waiting for them,” Christensen said. “How is that going to be convenient for us?”