This is a list of the National Register of Historic Places listings in Conejos County, Colorado.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Conejos County, Colorado, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map.^[1]

There are 13 properties and districts listed on the National Register in the county, including 2 National Historic Landmark.

          This National Park Service list is complete through NPS recent listings posted March 8, 2024.^[2]

Current listings

[3]	Name on the Register[4]	Image	Date listed[5]	Location	City or town	Description
1	Costilla Crossing Bridge	More images	February 4, 1985 (#85000194)	County Road over the Rio Grande 37°04′43″N 105°45′22″W / 37.078611°N 105.756111°W / 37.078611; -105.756111 (Costilla Crossing Bridge)	Antonito	Built 1892, rehabilitated 2006 [1]
2	Denver & Rio Grande Railroad San Juan Extension	More images	February 6, 1973 (#73000462)	Between Antonito and Chama, New Mexico via Cumbres Pass 36°51′56″N 106°23′56″W / 36.865556°N 106.398889°W / 36.865556; -106.398889 (Denver & Rio Grande Railroad San Juan Extension)	Antonito	Now a scenic railway, the Cumbres and Toltec Scenic Railroad; extends into Archuleta County
3	Engine No. 463	More images	May 12, 1975 (#75000502)	Off U.S. Route 285 37°04′12″N 106°00′38″W / 37.07°N 106.010556°W / 37.07; -106.010556 (Engine No. 463)	Antonito
4	Garcia-Espinosa-Garland Ranch Headquarters	Upload image	December 31, 2018 (#100003274)	7527 County Rd. 16 Coordinates missing	Antonito
5	La Jara Depot	More images	May 12, 1975 (#75000503)	Broadway and Main Sts. 37°16′31″N 105°57′35″W / 37.275278°N 105.959722°W / 37.275278; -105.959722 (La Jara Depot)	La Jara
6	McIntire Ranch	Upload image	March 26, 2008 (#08000204)	Approximately 1.5 miles north of County Road V 37°16′50″N 105°49′05″W / 37.280556°N 105.818056°W / 37.280556; -105.818056 (McIntire Ranch)	Sanford
7	Our Lady of Guadalupe Church		December 17, 2018 (#100003275)	6631-33 County Road 13 37°05′18″N 106°01′13″W / 37.088271°N 106.020181°W / 37.088271; -106.020181 (Our Lady of Guadalupe Church)	Conejos
8	Palace Hotel	More images	August 19, 1994 (#94001013)	429 Main St. 37°04′35″N 106°00′30″W / 37.076389°N 106.008333°W / 37.076389; -106.008333 (Palace Hotel)	Antonito
9	Pike's Stockade	More images	October 15, 1966 (#66000244)	4 miles east of Sanford on State Highway 136 37°17′37″N 105°48′36″W / 37.293611°N 105.81°W / 37.293611; -105.81 (Pike's Stockade)	Sanford
10	Rio Grande Engine No. 168	More images	August 10, 1979 (#79000601)	5234B U.S. 285 37°04′07″N 106°00′50″W / 37.068611°N 106.013750°W / 37.068611; -106.013750 (Rio Grande Engine No. 168)	Antonito
11	S.P.M.D.T.U. Concilio Superior		March 29, 2001 (#01000322)	603 Main St. 37°04′35″N 106°00′30″W / 37.076389°N 106.008333°W / 37.076389; -106.008333 (S.P.M.D.T.U. Concilio Superior)	Antonito
12	St. Joseph's Church	Upload image	December 31, 2018 (#100003276)	19895 County Road 8 37°16′55″N 106°06′42″W / 37.282022°N 106.111698°W / 37.282022; -106.111698 (St. Joseph's Church)	Capulin
13	Warshauer Mansion	More images	August 30, 1974 (#74000564)	515 River St. 37°04′34″N 106°00′36″W / 37.076111°N 106.01°W / 37.076111; -106.01 (Warshauer Mansion)	Antonito