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Woodstock is an unincorporated community which is a suburb of Baltimore, Maryland. The original village of Woodstock is located in Howard County, but the surrounding area includes portions of Baltimore County and Carroll County.
As of 2010, Woodstock's population is 6,986. The population growth rate is 31.51%.
 Housing market
According to Sperling's BestPlaces, Woodstock's cost of living is 49.9% higher than the U.S. average, and the median cost per home in Woodstock is $422,290 with a growth appreciation rate of -7.19%.
Public schools in the area spend $6,343 per student, $665 more than the U.S. median. There is an average of 14.9 students per teacher.
 Relationship with Granite
The area in Baltimore County along the Patapsco opposite the Howard County portion of Woodstock is referred to as both Granite and Woodstock, resulting in ambiguities and confusion:
- The post office for the 21163 ZIP code is in Woodstock, Howard County, but the ZIP code covers, and the post office serves, residents of both counties. The post office also serves the 21104 ZIP code, which is similarly split between Howard and Carroll Counties.
- Per the official USPS address database, mail destined for ZIP code 21163 can use either "Woodstock" or "Granite" as the city: while "Woodstock" is the default, "Granite" is acceptable.
- Woodstock College was in Baltimore County.
- The Chinese Bible Church of Howard County is in Granite, Baltimore County.
- A Baltimore Sun article about the funeral for a Montgomery County Police Department officer that took place at a church and cemetery on the Baltimore County side listed the location as "Woodstock", while — several months later — an article in the real estate section of the same paper about housing on the Baltimore County side was titled "Granite".
- The name of a road that runs through both Woodstock and Granite is "Woodstock Road" only on the Howard County side; it loses this name as it enters Baltimore County, where it becomes "Old Court Road".
- Telephone lines for areas in Baltimore County that are close to the river have Ellicott City exchanges (750) from the Ellicott City central office.
William Henry Gorman was born in Woodstock in 1843. He founded the Citizen's Bank of Laurel, Maryland and the Maryland and City Hotels in Annapolis, Maryland
Evan Oglesby (ex-Ravens player) lives near Woodstock