Pony Express History and Its USPS Connection

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The Pony Express was a horseback mail relay that ran for only 18 months, from April 1860 to October 1861. Its first mail took ten days to get from Missouri to California. The express was a private company, not part of the federal Post Office Department that later became the United States Postal Service (USPS), and it carried U.S. Mail under contract only in its final four months.

Speed was the selling point, and it was expensive: a letter cost $5 per half ounce at the start, when ordinary postage was no more than 10 cents. Even so, the company did not earn enough to pay its operating costs, and, according to the Postal Service, the service officially ended two days after the transcontinental telegraph line was finished.

A private company chasing a federal contract

William H. Russell, Alexander Majors and William B. Waddell were Missouri business partners experienced in hauling cargo and passengers. They formed the Central Overland California & Pike’s Peak Express Company, better known as the Pony Express.

According to the National Park Service, Russell hoped the horse relay would promote his company and build congressional support to win the mail contract for a central overland route. The service began on April 3, 1860.

California had mail, but the news arrived late

California’s population grew after the discovery of gold and statehood, increasing the urgency for better communication. Mail traveled from New York by ship to Panama, crossed the isthmus, then continued by ship to San Francisco; the target of three to four weeks was seldom met. Someone needing a reply faced the wait in both directions.

John Butterfield’s overland stagecoach service began in 1858 on a southern route through El Paso, Texas, with a contract requiring delivery within 25 days. The first Pony Express mail from St. Joseph, Missouri, to Sacramento, California, took ten days, cutting the southern overland stage time by more than half.

Fresh horses made the relay fast

The route ran between St. Joseph and San Francisco, but riders went only as far as Sacramento, where the mail was put on a steamer for San Francisco. The roughly 2,000-mile historic trail crosses today’s Missouri, Kansas, Nebraska, Colorado, Wyoming, Utah, Nevada and California.

Riders changed horses at relay stations set 10 to 15 miles apart. Each rider traveled about 75 to 100 miles per shift, changing horses several times. Home stations housed riders between runs, while the smaller relay stations provided fresh horses. A horse could recover while the mail kept moving, and a rider could rest while another rider continued the journey.

The mail traveled in a mochila, a saddle cover with four mail pockets called cantinas, which moved with the rider onto a fresh mount. Changing horses did not mean repacking the mail.

The company employed between 80 and 100 riders and several hundred station workers. The National Park Service describes station keepers and stock tenders as essential workers living in isolated, primitive and dangerous conditions.

Expensive speed, demanding work

On April 3, 1860, the St. Joseph Daily Gazette announced it would send a newspaper by the first Pony Express. The departing westbound rider reportedly carried five telegrams, 49 letters and newspapers printed on lightweight paper. Who that rider was is uncertain: Johnny Fry is usually credited with the first westbound ride out of St. Joseph, though some accounts credit Billy Richardson. The first eastbound pouch started in San Francisco, where James Randall probably carried it from the Pony Express terminal to the wharf; it went by ferry to Sacramento and continued overland by horse.

At the start, the Pony Express charged $5 per half ounce. During its federal contract period, from July 1 to October 26, 1861, the rate was $1 per half ounce, compared with 3 or 10 cents for regular mail. Express delivery took about ten days during that period, compared with about 20 to 26 days for regular mail. For the operator, keeping riders employed and horses available cost money whether the mochila held one letter or many.

A March 19, 1860, advertisement in the Sacramento Union offered $50 a month for horse handlers or riders. Recruits ranged from teenagers to about age 40, and riders had to weigh less than 120 pounds. Riders received room and board as well as wages.

The National Park Service describes prospectors in Nevada taking land, feed and water without regard for the rights of the Paiute people who lived there, and Pony Express relay stations occupying critical water sources the Paiutes depended on. The Pyramid Lake War began on May 7, 1860, at Williams Station in Nevada’s Carson Valley. According to the Park Service, four white men there tied up a Paiute man and attacked a Paiute woman; the man later returned with friends, and the house was burned with the four men in it. A station at Simpson Park was burned, and in June the Pony Express canceled service between Carson City and Salt Lake City; by July, federal troops and increased security helped restore mail delivery to California.

The Park Service calls winter weather the greatest challenge the service faced. Snow that buried the high country between Salt Lake and Fort Laramie in what is now southeastern Wyoming was often more than a lone rider could get through, although deliveries continued even in January 1861, with delays of four to six days.

A mail contract could not rescue the business

After the secession of Texas closed the southern routes, the central overland mail contract went to Butterfield’s Overland Mail Company, not to the Pony Express. The Post Office awarded that contract on March 12, 1861, and under a subcontract signed March 16, the founders’ company, Central Overland California & Pike’s Peak Express, handled the stretch between St. Joseph and Salt Lake City. The two companies divided Pony Express receipts equally, with each company paying the expenses on its own part of the route.

The Pony Express began operating under contract as a mail route on July 1, 1861, when its company was already deeply in debt. USPS’s history says the company did not cover its operating expenses.

The completion of the transcontinental telegraph in October 1861 made the Pony Express obsolete. According to the U.S. Postal Service, the express officially ended on October 26, 1861. The Park Service brochure instead places telegraph completion on October 26, 1861, and the Pony’s last run on November 20, 1861.

The connection survives in postal history

During the Pony Express years, the federal mail agency was the Post Office Department, not USPS. The modern USPS began operations on July 1, 1971, after the Postal Reorganization Act turned the cabinet-level Post Office Department into an independent agency.

A Pony Express postage stamp was issued on July 19, 1960. On June 17, 2024, USPS dedicated its Horses stamps at the kickoff of the Pony Express Re-Ride at the Patee House Museum in St. Joseph. The Re-Ride is an annual event in which riders retrace the historic route to Sacramento over ten days.

The National Park Service administers the Pony Express National Historic Trail, but the route on the ground is owned or managed by a mixture of public, private, nonprofit, state, county and local landowners. The trail is a corridor rather than a continuous, clearly marked hiking path, and visitors need permission before entering unmarked private land or reserves.