• The Delmarva Peninsula, particularly Maryland, has deep historical ties to Irish immigrants.
• Ocean City celebrates this heritage with one of the Eastern Shore’s largest St. Patrick’s Day parades.
• Irish immigrants played a significant role in building American infrastructure, such as the B&O Railroad.

The Delmarva Peninsula is no strange to Irish heritage and history.

Now, ahead of St. Patrick’s Day on March 17, 2026, here’s a closer look at just how that rich Irish history has shaped Delmarva and one of its most popular resort towns.

Irish immigrants helped shape Maryland infrastructure

The state of Maryland, in particular, has deep historical ties to Irish immigrants.

According to the Delmarva Irish-American Club, thousands of Irish immigrants arrived through the Port of Baltimore seeking refuge amid the Irish Potato Famine during the 1840s and 1850s. Together, the immigrants built railroads, dug canals, and formed tight-knit communities in areas such as Locust Point and Fell’s Point in Baltimore.

Irish immigrants also played a big part in early American infrastructure in Maryland.

Throughout the 19th century, countless Irish immigrants helped construct portions of the Baltimore and Ohio (B&O) Railroad, the oldest railroad ever to be built in the United States. Even Delmarva Irish-American Club Vice President John R. O’Brien’s great grandfather was a stone mason on the second half of the Washington Monument.

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In what ways does Ocean City celebrate Irish culture?

Ocean City, Maryland’s first ever St. Patrick’s Day Parade took place in 1980. Since then, the parade and accompanying festival have grown into one of the Eastern Shore’s biggest St. Patrick’s Day celebrations.

Following the influx of Irish immigration during the 1840s and 1850s, many individuals of Irish descent began to settle throughout Maryland and the Mid-Atlantic region. Now, that heritage is reflected in local organizations, churches, music traditions and community-wide events such as Ocean City’s annual St. Patrick’s Day Parade.

This year’s St. Patrick’s Day celebration will take place on Saturday, March 14, 2026. The procession will begin at noon at 57th Street on Coastal Highway, marching south to the 45th Street Shopping Center.

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How can people honor their Irish heritage at home?

There are many ways people of all ages can honor their Irish heritage and history alongside friends and family at home.

A few Irish-centered activities include:

• Listening to traditional Irish folk music
• Baking Irish soda bread or stew
• Learning about family genealogy
• Reading Irish literature and mythology
• Sharing Irish stories and folklore with children
• Decorating with Celtic symbols and shamrocks

Fun Irish phrases such as “Sláinte” (meaning cheers or good health), “Céad míle fáilte” (meaning a hundred thousand welcomes), and the Irish blessing “May the road rise to meet you,” can also be incorporated into daily vocabulary.

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What is the Delmarva Irish-American Club?

The Delmarva Irish-American Club was founded in 1980 by a small group of friends with the vision of celebrating the Feast Day of St. Patrick, the Patron Saint of Ireland, with a grand parade.

The club’s first membership drive resulted in 75 members. Today, there are nearly 300. The club is open to anyone who is Irish, of Irish descent, or likes all things Irish, Delmarva Now previously reported.

The Delmarva Irish-American Club — a 501(c)(3) social organization — is an all-volunteer, local charity that works year-round to celebrate and preserve Irish history and culture on the Eastern Shore.

“Our goal is to celebrate Irish heritage and share those traditions with the broader community while keeping them alive for the next generation,” Vice President John R. O’Brien shared.

The club is largely responsible for the Ocean City’s St. Patrick’s Day Parade, and also supports Irish music, dance and cultural events throughout the year. To learn more, visit www.delmarvairish.org.

Olivia Minzola covers communities on the Lower Shore. Contact her with tips and story ideas at ominzola@delmarvanow.com.