National Register of Historic Places listings in Maryland facts for kids

There are more than 1,500 properties and districts listed on the National Register of Historic Places in the U.S. State of Maryland. Each of the state's 23 counties and its one county-equivalent (the independent city of Baltimore) has at least 20 listings on the National Register.

This National Park Service list is complete through NPS recent listings posted March 31, 2017.

Current listings by county

The following are approximate tallies of current listings in Maryland on the National Register of Historic Places. These counts are based on entries in the National Register Information Database as of April 24, 2008 and new weekly listings posted since then on the National Register of Historic Places web site. There are frequent additions to the listings and occasional delistings, and the counts here are not official. Also, the counts in this table exclude boundary increase and decrease listings which modify the area covered by an existing property or district and which carry a separate National Register reference number.

Bostwick, Prince George's County

Emerson Bromo-Seltzer Tower, Baltimore City

St. Clement's Island Historic District, St. Mary's County

	County	# of Sites
1	Allegany	46
2	Anne Arundel	103
3	Baltimore (city)	294
4	Baltimore County	87
5	Calvert	20
6	Caroline	23
7	Carroll	61
8	Cecil	51
9	Charles	39
10	Dorchester	26
11	Frederick	95
12	Garrett	20
13	Harford	79
14	Howard	41
15	Kent	41
16	Montgomery	77
17	Prince George's	102
18	Queen Anne's	38
19	Somerset	73
20	St. Mary's	32
21	Talbot	62
22	Washington	102
23	Wicomico	23
24	Worcester	32
(duplicates)		(21)
Total:		1,546

Casselman's Bridge, National Road, Garrett County

Brunswick Historic District, Frederick County

Nassawango Iron Furnace Site, Worcester County

St. Mary's Roman Catholic Church, Newport, Charles County