Joppatowne is a census-designated place in southwestern Harford County, Maryland, United States. Serving as a bedroom community for nearby Baltimore, it was established in 1961 as a planned unit development (PUD). The population was 12,616 at the 2010 census, up from 11,391 in 2000.
Joppatowne is covered by the "Joppa" ZIP Code of 21085, and "Joppa" is a designated planning region for Harford County. The Joppa ZIP code (21085) extends north of Joppatowne, as far as Benson, just south of Bel Air.
The namesake of both Joppatowne and Joppa is the original town of "Joppa" (Jaffa, Israel). It was a major seaport in American colonial times and the county seat of the original Baltimore County until 1768. Its site is located within the boundaries of present-day Joppatowne.
Colonial history
In colonial America there were three towns in the area of present-day Joppatowne, each established and abandoned in succession: Gunpowder Town, Foster's Neck, and Joppa. The first two were short-lived, but Joppa proved quite successful for some 50 years.
Gunpowder Town, or simply "Gunpowder", was a failed English settlement that pre-dated colonial Joppa, and was located close to it. This first attempt to establish an English settlement on the Gunpowder River was apparently abandoned because it proved to be a poor location. Though documents and records exist for the settlement, including official papers in the archives of the United Kingdom, nobody knows exactly where it was located. It was somewhere northwest of present-day Joppatowne, situated between the confluence of the Big Gunpowder and Little Gunpowder, at a place known as "Sim's Point". Its location cannot be accurately pinpointed because at that time the mouths of the Big and Little Gunpowder were about a mile further inland (above present-day U.S. Route 40). No trace of the town is known to have ever been found.
In 1706 the Provincial Assembly of Maryland chartered another town nearby, known as "Foster's Neck". It was located on the eastern bank of the Gunpowder River, at the stream later known as Foster Branch (or "Foster's Branch"), at the southernmost boundary of present-day Joppatowne. Again, though mill ruins are visible in this area near the stream, the town's precise location is unknown. Foster's Neck was intended to succeed the town of Old Baltimore (no relation to Baltimore City) on the Bush River as the county seat of Baltimore County. However, Foster's Neck was abandoned a year later, in 1707, reportedly due to an outbreak of smallpox. St. John's Parish of the established Anglican Church temporarily moved inland, to where the Officer's Club at the Edgewood area of Aberdeen Proving Ground is currently located. It relocated to Joppa in 1712. After the decline of Joppa following the designation of the city of Baltimore as the county seat in 1768, St. John's Parish was moved to nearby Kingsville in the late 18th century, where it has stayed. A new St. John's Parish Church was built by Edward Day in Kingsville in 1817 to replace the St. John's Parish Church at "Joppa Town" which has declined into ruins.
The original Joppa was a major seaport and commercial hub in the 18th century. The town proper was located on what is now called Rumsey Island, where the Big Gunpowder Falls and Little Gunpowder Falls meet to form the Gunpowder River. The only original building remaining is the Rumsey Mansion, once home of colonial patriot Benjamin Rumsey. Building foundations and gravesites are visible on the adjacent Church of the Resurrection property. Ruins of the original wharf and docks, as well as the town jail, were still visible until Hurricane Agnes swept through in 1972. The Old Joppa Site was added to the National Register of Historic Places as an archeological site in 1979.
Joppa was the county seat of Baltimore County from 1712 to 1768. Present-day Harford County was part of Baltimore County until 1773.
Joppa's "mile wide harbor" on the Gunpowder River could accommodate the largest ocean-going ships of the day. Joppa was Maryland's most important commercial center in colonial times, with tobacco being the primary commodity crop and export. Long before Baltimore was established, this was one of the busiest ports in the western hemisphere.