# List of sister cities in Maryland

This is a list of sister states, regions, and cities in the U.S. state of Maryland. Sister cities, known in Europe as town twins, are cities which partner with each other to promote human contact and cultural links, although this partnering is not limited to cities and often includes counties, regions, states and other sub-national entities.
Many Maryland jurisdictions partner with foreign cities through Sister Cities International, an organization whose goal is to, "Promote peace through mutual respect, understanding, and cooperation." The first sister city relationship in Maryland, however, was between Salisbury, Maryland and Salisbury, England, and predated Sister Cities International. Sister cities interact with each other across a broad range of activities, from health care and education to business and the arts. The partnerships in this list vary in how formalized their relationships are. Recently, a number of Maryland cities have partnered with cities in Estonia through a program developed by the Maryland National Guard after Estonia gained its independence from the Soviet Union.

## Sister states, regions and cities of Maryland

| Maryland Jurisdiction | Sister State, Region, or City | Country | Since |
| State of Maryland | Anhui Province | China | 1980 |
| State of Maryland | Tartu | Estonia | 2003 |
| State of Maryland | Gyeongsangnam-do Province | South Korea | 1991 |
| State of Maryland | Jalisco State | Mexico | 1993 |
| State of Maryland | Kanagawa Prefecture | Japan | 1981 |
| State of Maryland | Bong County | Liberia | 2007 |
| State of Maryland | Maryland County | Liberia | 2007 |
| State of Maryland | Łódź Voivodeship | Poland | 1993 |
| State of Maryland | Nord-Pas de Calais | France | 1981 |
| State of Maryland | State of Rio de Janeiro | Brazil | 1999 |
| State of Maryland | Saint Petersburg Leningrad Oblast | Russia | 1993 |
| State of Maryland | Wallonia Region | Belgium | 1989 |
| State of Maryland | County Cork | Ireland | |

## Sister cities of Maryland cities and counties

| Maryland Jurisdiction | Sister State, Region, or City | Country | Since |
| Annapolis | Annapolis Royal, Nova Scotia | Canada | 1980 |
| Annapolis | Changsha, China | China | Unknown |
| Annapolis | Dumfries, Dumfries and Galloway | Scotland, UK | 1987 |
| Annapolis | Newport | Wales, UK | 1982 |
| Annapolis | Niterói, Rio de Janeiro | Brazil | 1982 |
| Annapolis | Tallinn, Harju County | Estonia | 1999 |
| Annapolis | Wexford, County Wexford | Ireland | 1993 |
| Baltimore | Alexandria, Alexandria Governorate | Egypt | 1995 |
| Baltimore | Ashkelon, Southern District | Israel | 2005 |
| Baltimore | Changwon | South Korea | 2018 |
| Baltimore | Gbarnga, Bong County | Liberia | 1973 |
| Baltimore | Genoa, Liguria | Italy | 1985 |
| Baltimore | Kawasaki, Kanagawa Prefecture | Japan | 1978 |
| Baltimore | Luxor, Luxor Governorate | Egypt | 1981 |
| Baltimore | Odesa, Odesa Oblast | Ukraine | 1974 |
| Baltimore | Piraeus, Attica | Greece | 1982 |
| Baltimore | Rotterdam, South Holland | Netherlands | 1985 |
| Baltimore | Xiamen, Fujian | China | 1985 |
| Charles County | Jõgeva, Jõgeva County | Estonia | 2012 |
| Charles County | Walldorf, Baden-Württemberg | Germany | 2002 |
| Columbia | Cergy-Pontoise, Île-de-France | France | 1977 |
| Columbia | Tres Cantos, Community of Madrid | Spain | 1990 |
| Cumberland | Tapa, Lääne-Viru County | Estonia | 2000 |
| District Heights | Mbuji-Mayi, Kasai-Oriental Province | DR Congo | 2008 |
| District Heights | Thomonde, Centre | Haiti | |
| Frederick | Aquiraz, Ceará | Brazil | 2006 |
| Frederick | Mörzheim, Landau | Germany | 1982 |
| Frederick | Schifferstadt, Rhineland-Palatinate | Germany | 1982 |
| Frostburg | Viljandi, Viljandi County | Estonia | 2000 |
| Grantsville | Tõrva, Valga County | Estonia | 2000 |
| Hagerstown | Wesel, North Rhine-Westphalia | Germany | 1952 |
| Havre de Grace | Sillamäe, Ida-Viru County | Estonia | 2000 |
| McHenry | Otepää, Valga County | Estonia | 2000 |
| Montgomery County | Gondar, Amhara | Ethiopia | |
| Montgomery County | Morazán Department | El Salvador | 2011 |
| Oakland | Tőrca, Valga County | Estonia | |
| Oakland | Valga, Valga County | Estonia | 2000 |
| Ocean City | Finale Ligure, Liguria | Italy | 1996 |
| Ocean City | Pärnu, Pärnu County | Estonia | 2003 |
| Prince George's County | Rishon Le Zion, Central District | Israel | 1990 |
| Prince George's County | Royal Bafokeng Nation, North West Province | South Africa | 1998 |
| Prince George's County | Ziguinchor, Casamance | Senegal | 1987 |
| Riverdale Park | Ipala, Chiquimula | Guatemala | 2008 |
| Rockville | Jiaxing, Zhejiang ("friendly" relations) | China | 2008 |
| Rockville | Pinneberg, Schleswig-Holstein | Germany | 1957 |
| Rockville | Yilan City, Yilan County | Taiwan | 2019 |
| Salisbury | Salisbury, Wiltshire | England, UK | 1932 |
| Salisbury | Tartu, Tartu County | Estonia | 1999 |
| Salisbury | Salinas, Santa Elena | Ecuador | 2017 |
| Westminster | Paide, Järva County | Estonia | 2002 |