Baldwin, Maryland | |
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| Coordinates: 39°29′41″N76°28′13″W / 39.49472°N 76.47028°W | |
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| Time zone | UTC−5 (Eastern (EST)) |
| • Summer (DST) | UTC−4 (EDT) |
| GNIS feature ID | 589687 |
Baldwin is an unincorporated community in Baltimore County, Maryland, United States. [1] The USPS has assigned Baldwin the ZIP Code 21013. [2] Until 1958, this community was served by the Maryland and Pennsylvania Railroad at milepost 18.4. Hidden Valley Farm was listed on the National Register of Historic Places in 1983. [3]